1 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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2 | % Transmitting and Receiving Data using WARPLab (2x2 MIMO configuration) |
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3 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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4 | % To run this M-code the boards must be programmed with the |
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5 | % 2x2 MIMO 5.x version of WARPLab bitstream (because this bitstream provides |
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6 | % storage of RSSI values and this M-code reads RSSI values). This M-code |
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7 | % will work with warplab_mimo_4x4_v05.bit bitstream when read of RSSI |
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8 | % values is deleted from the M-code. |
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9 | |
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10 | % The specific steps implemented in this script are the following |
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11 | |
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12 | % 0. Initializaton and definition of parameters |
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13 | % 1. Generate a vector of samples to transmit and send the samples to the |
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14 | % WARP board (Sample Frequency is 40MHz) |
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15 | % 2. Prepare WARP boards for transmission and reception and send trigger to |
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16 | % start transmission and reception (trigger is the SYNC packet) |
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17 | % 3. Read the received samples from the Warp board |
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18 | % 4. Reset and disable the boards |
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19 | % 5. Plot the transmitted and received data and close sockets |
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20 | |
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21 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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22 | % 0. Initializaton and definition of parameters |
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23 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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24 | %Load some global definitions (packet types, etc.) |
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25 | warplab_defines |
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26 | |
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27 | % Create Socket handles and intialize nodes |
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28 | [socketHandles, packetNum] = warplab_initialize; |
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29 | |
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30 | % Separate the socket handles for easier access |
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31 | % The first socket handle is always the magic SYNC |
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32 | % The rest of the handles are the handles to the WARP nodes |
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33 | udp_Sync = socketHandles(1); |
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34 | udp_node1 = socketHandles(2); |
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35 | udp_node2 = socketHandles(3); |
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36 | |
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37 | % Define WARPLab parameters. |
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38 | TxDelay = 2000; % Number of noise samples per Rx capture. In [0:2^14] |
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39 | TxLength = 2^14-1-2000; % Length of transmission. In [0:2^14-1-TxDelay] |
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40 | TxMode = 0; % Transmission mode. In [0:1] |
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41 | % 0: Single Transmission |
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42 | % 1: Continuous Transmission. Tx board will continue |
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43 | % transmitting the vector of samples until the user manually |
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44 | % disables the transmitter. |
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45 | CarrierChannel = 12; % Channel in the 2.4 GHz band. In [1:14] |
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46 | Node1_Radio2_TxGain_BB = 3; % Tx Baseband Gain. In [0:3] |
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47 | Node1_Radio2_TxGain_RF = 40; % Tx RF Gain. In [0:63] |
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48 | Node1_Radio3_TxGain_BB = 3; % Tx Baseband Gain. In [0:3] |
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49 | Node1_Radio3_TxGain_RF = 40; % Tx RF Gain. In [0:63] |
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50 | Node2_Radio2_RxGain_BB = 15; % Rx Baseband Gain. In [0:31] |
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51 | Node2_Radio2_RxGain_RF = 1; % Rx RF Gain. In [1:3] |
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52 | Node2_Radio3_RxGain_BB = 15; % Rx Baseband Gain. In [0:31] |
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53 | Node2_Radio3_RxGain_RF = 1; % Rx RF Gain. In [1:3] |
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54 | Node2_MGC_AGC_Select = 0; % Set MGC_AGC_Select=1 to enable Automatic Gain Control (AGC). |
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55 | % Set MGC_AGC_Select=0 to enable Manual Gain Control (MGC). |
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56 | % By default, the nodes are set to MGC. |
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57 | |
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58 | % Download the WARPLab parameters to the WARP nodes. |
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59 | % The nodes store the TxDelay, TxLength, and TxMode parameters in |
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60 | % registers defined in the WARPLab sysgen model. The nodes set radio |
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61 | % related parameters CarrierChannel, TxGains, and RxGains, using the |
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62 | % radio controller functions. |
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63 | % The TxDelay, TxLength, and TxMode parameters need to be known at the transmitter; |
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64 | % the receiver doesn't require knowledge of these parameters (the receiver |
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65 | % will always capture 2^14 samples). For this exercise node 1 will be set as |
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66 | % the transmitter (this is done later in the code). Since TxDelay, TxLength and |
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67 | % TxMode are only required at the transmitter we download the TxDelay, TxLength and |
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68 | % TxMode parameters only to the transmitter node (node 1). |
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69 | warplab_writeRegister(udp_node1,TX_DELAY,TxDelay); |
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70 | warplab_writeRegister(udp_node1,TX_LENGTH,TxLength); |
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71 | warplab_writeRegister(udp_node1,TX_MODE,TxMode); |
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72 | % The CarrierChannel parameter must be downloaded to all nodes |
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73 | warplab_setRadioParameter(udp_node1,CARRIER_CHANNEL,CarrierChannel); |
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74 | warplab_setRadioParameter(udp_node2,CARRIER_CHANNEL,CarrierChannel); |
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75 | |
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76 | % Download 'Node1_Radio2_TxGain_RF', 'Node1_Radio2_TxGain_BB', |
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77 | % 'Node1_Radio3_TxGain_RF', and 'Node1_Radio3_TxGain_BB' parameters |
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78 | % to node 1 using the 'warplab_setRadioParameter' function. |
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79 | % Hints: |
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80 | % 1. The first argument of the 'warplab_setRadioParameter' function |
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81 | % identifies the node to which the parameter will be downloaded to. |
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82 | % The id or handle to node 1 is 'udp_node1'. |
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83 | % 2. The second argument of the 'warplab_setRadioParameter' function |
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84 | % identifies the parameter that will be downloaded. The |
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85 | % 'Node1_Radio2_TxGain_RF' and 'Node1_Radio2_TxGain_BB' parameters are |
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86 | % downloaded in one call of the 'warplab_setRadioParameter' and the id to |
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87 | % download these parameters is 'RADIO2_TXGAINS'. The |
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88 | % 'Node1_Radio3_TxGain_RF' and 'Node1_Radio3_TxGain_BB' parameters are |
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89 | % downloaded in one call of the 'warplab_setRadioParameter' and the id to |
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90 | % download these parameters is 'RADIO3_TXGAINS'. |
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91 | % 3. The third argument of the 'warplab_setRadioParameter' function is the |
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92 | % value the parameter must be set to. The 'Node1_Radio2_TxGain_RF' and |
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93 | % 'Node1_Radio2_TxGain_BB' parameters are downloaded in one call of the |
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94 | % 'warplab_setRadioParameter', these two values must be combined for |
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95 | % download in the following way: |
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96 | % (Node1_Radio2_TxGain_RF + Node1_Radio2_TxGain_BB*2^16) |
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97 | % The 'Node1_Radio3_TxGain_RF' and |
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98 | % 'Node1_Radio3_TxGain_BB' parameters are downloaded in one call of the |
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99 | % 'warplab_setRadioParameter', these two values must be combined for |
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100 | % download in the following way: |
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101 | % (Node1_Radio3_TxGain_RF + Node1_Radio3_TxGain_BB*2^16) |
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102 | % 4. Call the 'warplab_setRadioParameter' function twice. One time to |
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103 | % download the 'Node1_Radio2_TxGain_RF' and 'Node1_Radio2_TxGain_BB' |
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104 | % parameters and one time to download the 'Node1_Radio3_TxGain_RF' and |
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105 | % 'Node1_Radio3_TxGain_BB' parameters. |
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106 | % Node 1 will be set as the transmitter so download Tx gains to node 1. |
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107 | warplab_setRadioParameter(udp_node1,RADIO2_TXGAINS,(Node1_Radio2_TxGain_RF + Node1_Radio2_TxGain_BB*2^16)); |
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108 | warplab_setRadioParameter(udp_node1,RADIO3_TXGAINS,(Node1_Radio3_TxGain_RF + Node1_Radio3_TxGain_BB*2^16)); |
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109 | |
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110 | % Download 'Node2_Radio2_RxGain_BB', 'Node2_Radio2_RxGain_RF', |
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111 | % 'Node2_Radio3_RxGain_BB', and 'Node2_Radio3_RxGain_RF' parameters |
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112 | % to node 2 using the 'warplab_setRadioParameter' function. |
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113 | % Hints: |
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114 | % 1. The first argument of the 'warplab_setRadioParameter' function |
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115 | % identifies the node to which the parameter will be downloaded to. |
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116 | % The id or handle to node 2 is 'udp_node2'. |
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117 | % 2. The second argument of the 'warplab_setRadioParameter' function |
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118 | % identifies the parameter that will be downloaded. The |
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119 | % 'Node2_Radio2_RxGain_BB' and 'Node2_Radio2_RxGain_RF' parameters are |
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120 | % downloaded in one call of the 'warplab_setRadioParameter' and the id to |
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121 | % download these parameters is 'RADIO2_RXGAINS'. The |
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122 | % 'Node2_Radio3_RxGain_BB' and 'Node2_Radio3_RxGain_RF' parameters are |
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123 | % downloaded in one call of the 'warplab_setRadioParameter' and the id to |
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124 | % download these parameters is 'RADIO3_RXGAINS' |
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125 | % 3. The third argument of the 'warplab_setRadioParameter' function is the |
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126 | % value the parameter must be set to. The 'Node2_Radio2_RxGain_BB' and |
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127 | % 'Node2_Radio2_RxGain_RF' parameters are downloaded in one call of the |
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128 | % 'warplab_setRadioParameter', these two values must be combined for |
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129 | % download in the following way: |
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130 | % (Node2_Radio2_RxGain_BB + Node2_Radio2_RxGain_RF*2^16) |
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131 | % The 'Node2_Radio3_RxGain_BB' and |
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132 | % 'Node2_Radio3_RxGain_RF' parameters are downloaded in one call of the |
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133 | % 'warplab_setRadioParameter', these two values must be combined for |
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134 | % download in the following way: |
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135 | % (Node2_Radio3_RxGain_BB + Node2_Radio3_RxGain_RF*2^16) |
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136 | % 4. Call the 'warplab_setRadioParameter' function twice. One time to |
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137 | % download the 'Node2_Radio2_RxGain_BB' and 'Node2_Radio2_RxGain_RF' |
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138 | % parameters and one time to download the 'Node2_Radio3_RxGain_BB' and |
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139 | % 'Node2_Radio3_RxGain_RF' parameters. |
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140 | % Node 2 will be set as the receiver so download Rx gains to node 2. |
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141 | warplab_setRadioParameter(udp_node2,RADIO2_RXGAINS,(Node2_Radio2_RxGain_BB + Node2_Radio2_RxGain_RF*2^16)); |
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142 | warplab_setRadioParameter(udp_node2,RADIO3_RXGAINS,(Node2_Radio3_RxGain_BB + Node2_Radio3_RxGain_RF*2^16)); |
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143 | |
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144 | % Set MGC mode in node 2 (receiver) |
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145 | warplab_setAGCParameter(udp_node2,MGC_AGC_SEL, Node2_MGC_AGC_Select); |
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146 | |
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147 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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148 | % 1. Generate a vector of samples to transmit and send the samples to the |
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149 | % WARP board (Sample Frequency is 40MHz) |
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150 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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151 | % Prepare some data to be transmitted |
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152 | t = 0:(1/40e6):TxLength/40e6 - 1/40e6; % Create time vector |
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153 | |
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154 | % Create a signal to transmit from radio 2, the signal can be real or complex. |
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155 | % The signal must meet the following requirements: |
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156 | % - Signal to transmit must be a row vector. |
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157 | % - The amplitude of the real part must be in [-1:1] and the amplitude |
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158 | % of the imaginary part must be in [-1:1]. |
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159 | % - Highest frequency component is limited to 9.5 MHz (signal bandwidth |
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160 | % is limited to 19 MHz) |
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161 | % - Lowest frequency component is limited to 30 kHz |
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162 | Node1_Radio2_TxData = exp(t*j*2*pi*1e6); |
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163 | |
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164 | % Download the 'Node1_Radio2_TxData' vector to WARP node 1 radio 2 Tx |
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165 | % buffer using the 'warplab_writeSMWO' function. The 'Node1_Radio2_TxData' |
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166 | % vector is the vector of samples to be transmitted from node 1 radio 2. |
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167 | % The id for radio 2 Tx buffer is 'RADIO2_TXDATA'. |
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168 | warplab_writeSMWO(udp_node1, RADIO2_TXDATA, Node1_Radio2_TxData); % Download samples to |
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169 | % radio 2 Tx Buffer |
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170 | |
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171 | % Create a signal to transmit from radio 3, the signal can be real or complex. |
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172 | % The signal must meet the following requirements: |
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173 | % - Signal to transmit must be a row vector. |
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174 | % - The amplitude of the real part must be in [-1:1] and the amplitude |
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175 | % of the imaginary part must be in [-1:1]. |
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176 | % - Highest frequency component is limited to 9.5 MHz (signal bandwidth |
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177 | % is limited to 19 MHz) |
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178 | % - Lowest frequency component is limited to 30 kHz |
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179 | Node1_Radio3_TxData = exp(t*j*2*pi*5e6); |
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180 | |
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181 | % Download the 'Node1_Radio3_TxData' vector to WARP node 1 radio 3 Tx |
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182 | % buffer using the 'warplab_writeSMWO' function. The 'Node1_Radio3_TxData' |
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183 | % vector is the vector of samples to be transmitted from node 1 radio 3. |
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184 | % The id for radio 3 Tx buffer is 'RADIO3_TXDATA'. |
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185 | warplab_writeSMWO(udp_node1, RADIO3_TXDATA, Node1_Radio3_TxData); % Download samples to |
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186 | % radio 3 Tx Buffer |
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187 | |
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188 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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189 | % 2. Prepare WARP boards for transmission and reception and send trigger to |
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190 | % start transmission and reception (trigger is the SYNC packet) |
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191 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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192 | % The following lines of code set node 1 as transmitter and node 2 as |
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193 | % receiver; transmission and capture are triggered by sending the SYNC |
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194 | % packet. |
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195 | |
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196 | % Enable transmitter radio path in radios 2 and 3 in node 1 (enable radio 2 |
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197 | % and radio 3 in node 1 as transmitters) by sending the RADIO2_TXEN and |
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198 | % RADIO3_TXEN commands to node 1 using |
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199 | % the 'warplab_sendCmd' function. To send the RADIO2_TXEN |
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200 | % and RADIO3_TXEN commands in one call of the 'warplab_sendCmd' function |
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201 | % the second argument of the 'warplab_sendCmd' function can be a vector of |
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202 | % the commands: [RADIO2_TXEN, RADIO3_TXEN] |
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203 | warplab_sendCmd(udp_node1, [RADIO2_TXEN, RADIO3_TXEN], packetNum); |
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204 | |
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205 | % Enable transmission of node1's radio 2 and radio 3 Tx buffer (enable |
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206 | % transmission of samples stored in radio 2 Tx Buffer and in radio 3 Tx |
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207 | % Buffer in node 1) by sending the RADIO2TXBUFF_TXEN and |
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208 | % RADIO3TXBUFF_TXEN commands to node 1 using |
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209 | % the 'warplab_sendCmd' function. To send the |
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210 | % RADIO2TXBUFF_TXEN and RADIO3TXBUFF_TXEN commands in one call of the |
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211 | % 'warplab_sendCmd' function the second argument of the 'warplab_sendCmd' |
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212 | % function can be a vector of |
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213 | % the commands: [RADIO2TXBUFF_TXEN, RADIO3TXBUFF_TXEN] |
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214 | warplab_sendCmd(udp_node1, [RADIO2TXBUFF_TXEN, RADIO3TXBUFF_TXEN], packetNum); |
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215 | |
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216 | % Enable receiver radio path in radios 2 and 3 in node 2 (enable radios 2 |
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217 | % and 3 in node 2 as receivers) by sending the 'RADIO2_RXEN' and |
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218 | % 'RADIO3_RXEN' ommands to node 2 using 'warplab_sendCmd' function. |
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219 | % To send the RADIO2_RXEN and RADIO3_RXEN commands in one call of the |
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220 | % 'warplab_sendCmd' function the second argument of the 'warplab_sendCmd' |
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221 | % function can be a vector of |
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222 | % the commands: [RADIO2_RXEN, RADIO3_RXEN] |
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223 | warplab_sendCmd(udp_node2, [RADIO2_RXEN, RADIO3_RXEN], packetNum); |
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224 | |
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225 | % Enable capture in node2's radio 2 and radio 3 Rx Buffer (enable radio 2 |
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226 | % Rx buffer and radio 3 Rx buffer in node 2 for storage of samples) by |
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227 | % sending the 'RADIO2RXBUFF_RXEN' and 'RADIO3RXBUFF_RXEN' commands to node 2 |
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228 | % using 'warplab_sendCmd' function. To send the |
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229 | % RADIO2RXBUFF_RXEN and RADIO3RXBUFF_RXEN commands in one call of the |
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230 | % 'warplab_sendCmd' function the second argument of the 'warplab_sendCmd' |
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231 | % function can be a vector of |
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232 | % the commands: [RADIO2RXBUFF_RXEN, RADIO3RXBUFF_RXEN] |
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233 | warplab_sendCmd(udp_node2, [RADIO2RXBUFF_RXEN, RADIO3RXBUFF_RXEN], packetNum); |
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234 | |
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235 | |
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236 | % Prime transmitter state machine in node 1 by sending the TX_START command |
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237 | % to node 1 using the 'warplab_sendCmd' function. |
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238 | % Node 1 will start waiting for the SYNC packet as soon as it receives the |
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239 | % TX_START command. Transmission from node 1 will be triggered when node 1 |
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240 | % receives the SYNC packet. |
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241 | warplab_sendCmd(udp_node1, TX_START, packetNum); |
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242 | |
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243 | % Prime receiver state machine in node 2 by sending the RX_START command |
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244 | % to node 2 using the 'warplab_sendCmd' function. |
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245 | % Node 2 will start waiting for the SYNC packet as soon as it receives the |
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246 | % RX_START command. Capture on node 2 will be triggered when node 2 |
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247 | % receives the SYNC packet. |
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248 | warplab_sendCmd(udp_node2, RX_START, packetNum); |
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249 | |
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250 | % Send the SYNC packet |
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251 | warplab_sendSync(udp_Sync); |
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252 | |
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253 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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254 | % 3. Read the received samples from the Warp board |
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255 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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256 | % Read the received samples from the WARP node 2 radio 2 Rx buffer using the |
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257 | % 'warplab_readSMRO' function. Store the samples in a variable named |
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258 | % 'Node2_Radio2_RawRxData'. The id for radio 2 Rx buffer is 'RADIO2_RXDATA'. |
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259 | % For this exercise the third argument of the 'warplab_readSMRO' |
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260 | % function must be equal to 'TxLength+TxDelay', since TxLength is the |
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261 | % number of samples that were transmitted and the first TxDelay samples |
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262 | % that were captured correspond to noise samples captured before the data |
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263 | % was transmitted. |
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264 | [Node2_Radio2_RawRxData] = warplab_readSMRO(udp_node2, RADIO2_RXDATA, TxLength+TxDelay); |
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265 | |
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266 | |
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267 | % Read the received samples from the WARP node 2 radio 3 Rx buffer using the |
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268 | % 'warplab_readSMRO' function. Store the samples in a variable named |
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269 | % 'Node2_Radio3_RawRxData'. The id for radio 3 Rx buffer is 'RADIO3_RXDATA'. |
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270 | % For this exercise the third argument of the 'warplab_readSMRO' |
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271 | % function must be equal to 'TxLength+TxDelay', since TxLength is the |
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272 | % number of samples that were transmitted and the first TxDelay samples |
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273 | % that were captured correspond to noise samples captured before the data |
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274 | % was transmitted. |
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275 | [Node2_Radio3_RawRxData] = warplab_readSMRO(udp_node2, RADIO3_RXDATA, TxLength+TxDelay); |
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276 | |
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277 | % Process the received samples to obtain meaningful data |
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278 | [Node2_Radio2_RxData,Node2_Radio2_RxOTR] = warplab_processRawRxData(Node2_Radio2_RawRxData); |
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279 | [Node2_Radio3_RxData,Node2_Radio3_RxOTR] = warplab_processRawRxData(Node2_Radio3_RawRxData); |
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280 | % Read stored RSSI data from radio 2 |
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281 | [Node2_Radio2_RawRSSIData] = warplab_readSMRO(udp_node2, RADIO2_RSSIDATA, ceil((TxLength+TxDelay)/8)); |
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282 | % Read stored RSSI data from radio 3 |
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283 | [Node2_Radio3_RawRSSIData] = warplab_readSMRO(udp_node2, RADIO3_RSSIDATA, ceil((TxLength+TxDelay)/8)); |
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284 | % Procecss Raw RSSI data to obtain meningful RSSI values |
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285 | [Node2_Radio2_RSSIData] = warplab_processRawRSSIData(Node2_Radio2_RawRSSIData); |
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286 | [Node2_Radio3_RSSIData] = warplab_processRawRSSIData(Node2_Radio3_RawRSSIData); |
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287 | % Note: If the four lines of code above (warplab_processRawRSSIData lines and |
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288 | % warplab_readSMRO(udp_node2, RADIO2_RSSIDATA, (TxLength+TxDelay)/8) line |
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289 | % and warplab_readSMRO(udp_node2, RADIO3_RSSIDATA, (TxLength+TxDelay)/8) line) |
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290 | % are deleted, then the code will work when the boards are programmed |
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291 | % with the warplab_mimo_4x4_v04.bit bitstream) |
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292 | |
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293 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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294 | % 4. Reset and disable the boards |
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295 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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296 | % Set radios 2 and 3 Tx buffer in node 1 back to Tx disabled mode |
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297 | warplab_sendCmd(udp_node1, [RADIO2TXBUFF_TXDIS RADIO3TXBUFF_TXDIS], packetNum); |
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298 | |
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299 | % Disable the transmitter radios |
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300 | warplab_sendCmd(udp_node1, [RADIO2_TXDIS, RADIO3_TXDIS], packetNum); |
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301 | |
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302 | % Set radios 2 and 3 Rx buffer in node 2 back to Rx disabled mode |
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303 | warplab_sendCmd(udp_node2, [RADIO2RXBUFF_RXDIS, RADIO3RXBUFF_RXDIS], packetNum); |
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304 | |
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305 | % Disable the receiver radios |
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306 | warplab_sendCmd(udp_node2, [RADIO2_RXDIS,RADIO3_RXDIS], packetNum); |
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307 | |
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308 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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309 | % 5. Plot the transmitted and received data and close sockets |
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310 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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311 | figure; |
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312 | subplot(4,2,1); |
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313 | plot(real(Node1_Radio2_TxData)); |
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314 | title('Tx Node 1 Radio 2 I'); |
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315 | xlabel('n (samples)'); ylabel('Amplitude'); |
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316 | axis([0 2^14 -1 1]); % Set axis ranges. |
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317 | subplot(4,2,2); |
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318 | plot(imag(Node1_Radio2_TxData)); |
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319 | title('Tx Node 1 Radio 2 Q'); |
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320 | xlabel('n (samples)'); ylabel('Amplitude'); |
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321 | axis([0 2^14 -1 1]); % Set axis ranges. |
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322 | subplot(4,2,3); |
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323 | plot(real(Node1_Radio3_TxData)); |
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324 | title('Tx Node 1 Radio 3 I'); |
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325 | xlabel('n (samples)'); ylabel('Amplitude'); |
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326 | axis([0 2^14 -1 1]); % Set axis ranges. |
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327 | subplot(4,2,4); |
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328 | plot(imag(Node1_Radio3_TxData)); |
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329 | title('Tx Node 1 Radio 3 Q'); |
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330 | xlabel('n (samples)'); ylabel('Amplitude'); |
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331 | axis([0 2^14 -1 1]); % Set axis ranges. |
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332 | subplot(4,2,5); |
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333 | plot(real(Node2_Radio2_RxData)); |
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334 | title('Rx Node 2 Radio 2 I'); |
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335 | xlabel('n (samples)'); ylabel('Amplitude'); |
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336 | axis([0 2^14 -1 1]); % Set axis ranges. |
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337 | subplot(4,2,6); |
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338 | plot(imag(Node2_Radio2_RxData)); |
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339 | title('Rx Node 2 Radio 2 Q'); |
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340 | xlabel('n (samples)'); ylabel('Amplitude'); |
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341 | axis([0 2^14 -1 1]); % Set axis ranges. |
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342 | subplot(4,2,7); |
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343 | plot(real(Node2_Radio3_RxData)); |
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344 | title('Rx Node 2 Radio 3 I'); |
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345 | xlabel('n (samples)'); ylabel('Amplitude'); |
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346 | axis([0 2^14 -1 1]); % Set axis ranges. |
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347 | subplot(4,2,8); |
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348 | plot(imag(Node2_Radio3_RxData)); |
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349 | title('Rx Node 2 Radio 3 Q'); |
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350 | xlabel('n (samples)'); ylabel('Amplitude'); |
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351 | axis([0 2^14 -1 1]); % Set axis ranges. |
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352 | |
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353 | % Close sockets |
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354 | pnet('closeall'); |
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