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NS3 802.11e EDCA Parameters

Over AdhocWifi with WIFI_PHY_STANDARD_80211p_SCH standard and OfdmRate54Mbps ConstantRateWifiManager DataMode.

EDCA Parameters for 802.11e

 EDCA

Traffic Prioritization: VO (voice) > VI (video) > BE (best effort) > BK (background)

AC VO VI BE BK
AIFS[AC] 2 2 3 7
CWmin[AC] 3 7 15 15
CWmax[AC] 7 15 1023 1023
OPLimit[AC] 1504 µs 3008 µs 0 0

Simulation Results for Saturation Case

  • RTS/CTS Enabled
  • Packet Size =  2000
  • First Application [From 0 sec. to 12 sec.]
  • Second Application [From 3 sec. to 7 sec.]
  • Default Queue Length (Queue may still have packets after 7 sec. for Second Application)

Max Throughput for BK = 18.5 Mbps
Max Throughput for BE = 19.5 Mbps
Max Throughput for VI = 21 Mbps
Max Throughput for VO = 22 Mbps

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