Changes between Version 5 and Version 6 of 802.11/Benchmarks/Rx_Char


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Timestamp:
Dec 9, 2014, 10:45:08 AM (9 years ago)
Author:
chunter
Comment:

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  • 802.11/Benchmarks/Rx_Char

    v5 v6  
    1919== Receiver Sensitivity Test ==
    2020
    21 To test our Rx PHY against these measures, we use the [http://www.keysight.com/en/pd-326092-pn-N4010A/wireless-connectivity-test-set?&cc=US&lc=eng Keysight N4010A Wireless Connectivity Test Set] to generate known-good 1000 octet transmissions and deliver those transmissions to WARP v3 at a specified power. Then, we use the [wiki:802.11/wlan_exp WLAN Experiments Framework] to measure PER.
     21To test the Mango 802.11 Reference Design Rx PHY against these measures, we use the [http://www.keysight.com/en/pd-326092-pn-N4010A/wireless-connectivity-test-set?&cc=US&lc=eng Keysight N4010A Wireless Connectivity Test Set] to generate known-good 1000 octet transmissions and deliver those transmissions to WARP v3 at a specified power. Then, we use the [wiki:802.11/wlan_exp WLAN Experiments Framework] to measure PER.
    2222
    2323||  [[Image(experimental_setup.jpg, width=600)]]  ||
    … …  
    33331. Create N4010A sequence files that send each waveform segment 1000x in a row
    34341. Use [https://warpproject.org/docs/mango-wlan-exp/node.html#statistics-commands WLAN Experiments Statistics] to determine how many of the transmissions were fully received with a good FCS.
     35
     36We have used the above steps determine the Mango 802.11 Reference Design's receive sensitivity across 7 different WARP v3 kits and RF interfaces.
     37
     38||  [[Image(rx_sensitivity, width=800)]]  ||
     39
     40The above plots shows the results of this experiment. In particular, notice the receive powers that cross the 10% PER horizontal line -- these can be compared directly to the minimum sensitivity values specified by the standard. Specifically,
     41
     42||=  Rate  =||=  Modulation / Coding  =||=  Minimum Sensitivity (dBm)  =||=  '''Mango 802.11 Sensitivity (dBm)'''  =||=  '''Difference'''  =||
     43||  6 Mbps  ||  BPSK 1/2  ||  -82  ||  '''-85'''  ||  '''3dB better than minimum'''  ||
     44||  9 Mbps  ||  BPSK 3/4  ||  -81  ||  '''-83'''  ||  '''2dB better than minimum'''  ||
     45||  12 Mbps  ||  QPSK 1/2  ||  -79  ||  '''-83'''  ||  '''4dB better than minimum'''  ||
     46||  18 Mbps  ||  QPSK 3/4  ||  -77  ||  '''-81'''  ||  '''4dB better than minimum'''  ||
     47||  24 Mbps  ||  16-QAM 1/2  ||  -74  ||  '''-78'''  ||  '''4dB better than minimum'''  ||
     48||  36 Mbps  ||  16-QAM 3/4  ||  -70  ||  '''-75'''  ||  '''5dB better than minimum'''  ||
     49||  48 Mbps  ||  64-QAM 1/2  ||  -66  ||  '''-71'''  ||  '''5dB better than minimum'''  ||
     50||  54 Mbps  ||  64-QAM 2/3  ||  -65  ||  '''-69'''  ||  '''4dB better than minimum'''  ||