Changes between Version 4 and Version 5 of 802.11/Benchmarks/Tx_Char

Timestamp:

Dec 8, 2014, 3:19:57 PM (9 years ago)

Author:

chunter

Comment:

--

802.11/Benchmarks/Tx_Char

@@ -12 +12 @@
 ||  24 Mbps  ||  16-QAM 1/2  ||  -16  ||
 ||  36 Mbps  ||  16-QAM 3/4  ||  -19  ||
-||  48 Mbps  ||  64-QAM 2/3  ||  -22  ||
-||  54 Mbps  ||  64-QAM 1/2  ||  -25  ||
+||  48 Mbps  ||  64-QAM 1/2  ||  -22  ||
+||  54 Mbps  ||  64-QAM 2/3  ||  -25  ||
 
+
+This table codifies the intuition that high-order modulation and coding rates are more sensitive than their low rate counterparts. Therefore, the quality requirements on the waveform are more stringent for the higher rates.
 
 The 802.11 standard also specifies the procedure in which similar values can be measured for WLAN devices in Section 18.3.9.8 of 802.11-2012. To perform these measurements, you need calibrated test equipment whose with measurements you can trust. We have used the [http://www.keysight.com/en/pd-326092-pn-N4010A/wireless-connectivity-test-set?&cc=US&lc=eng Keysight N4010A Wireless Connectivity Test Set]. For this test, we use the N4010A's ability to accurately measure the EVM of transmissions from the Mango 802.11 Reference Design on WARP v3. We also use the N4010A's accurate Tx power measurement to measure the accuracy of the Mango 802.11 Reference Design's Tx power parameter. The N4010A can be scripted via Ethernet, so we can write a single Python script that controls both the N4010A as well as the 802.11 Reference Design via the [wiki:802.11/wlan_exp WLAN Experiments Framework].
 
 ||  [[Image(experimental_setup.jpg, width=600)]]  ||
+||  [[Image(setup.jpg, width=600)]]  ||
 ||  '''Experimental Setup'''  ||
 
 == Tx EVM ==
 
+Using the WLAN Experiments Framework, we con
+
+
 
 == Tx Power Accuracy ==