• 增强分布式协调功能



  1. The IEEE 802.11e draft based on enhanced distributed coordination function (EDCF) can enhance the QoS of IEEE 802.11 wireless LAN.
  2. The IEEE 802.11e supplements to 802.11, and therefore the WMM subset, replace the use of DCF with EDCF for CSMA/CA wireless frame transmission.
  3. IEEE 802.11e EDCF mechanism efficiently supportsing QoS application in WLAN,and EDCF CFB is regarded as a more efficient extension to EDCF. In the paper a group ACK mechanism based on EDCF CFB is put forward and is analyzed.
  4. This paper digs into basic media access control protocol DCF and EDCF in IEEE 802.11 and 802.11e, and advances computing method of average back off window and theory analytical method of access delay for DCF and EDCF.
    深入研究了IEEE 802.;11 和802
  5. This paper first analyzes the MAC access mechanism in IEEE802.11 WLAN. For the limitations of 802.11e in providing quality of services,the application of the CFB mechanism is regarded as a more efficient extension to EDCF.
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