Changes between Version 2 and Version 3 of 802.11/wlan_exp/app_notes/dcf_with_multiple_flows/appendix


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Timestamp:
Apr 23, 2014, 2:16:38 PM (10 years ago)
Author:
chunter
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  • 802.11/wlan_exp/app_notes/dcf_with_multiple_flows/appendix

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    33== Appendix: Multi-Flow Performance of Different PHY Rates ==
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     5We have characterized the same quad-flow network for different PHY rates we well. This appendix summarizes that study.
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    57=== Experiment Setup ===
     8
     9To test the different PHY rates, we sought to further eliminate uncontrolled variables by conducting the experiment over RF cabling and attenuators.
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     11[[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:OTW_setup.png, width=500)]]
     12
     13The above figure shows the experimental setup. The RF power splitter/combiner used is a [raw-attachment:../figs/ZAPD-2-272%2B.pdf Mini-Circuits ZAPD-2-272+]. The above configuration of attenuators approximates an equilateral triangle topology, where each of the three nodes is connected with the other two.
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     15 * Packet Length: 1400 byte payloads (1428 byte MPDUs, with MAC header and FCS)
     16 * Tx Power: 5 dBm
     17 * Trial Duration: 300 seconds
     18 * 2.4GHz channel 1
     19 * Physical Carrier Sensing Threshold: approximately -70 dBm
    620
    721=== Results ===