A Joint Transmit Power Control and Backoff Mechanism to Exploit Capture Effect in IEEE 802 11 WLAN

論文翻譯標題: IEEE 802 11無線區域網路下彰顯捕獲效應之傳送?率控制及計數倒退機制
  • 廖 謝誠

學生論文: Master's Thesis

摘要

In wireless communication when two or more signals are received by a receiver simultaneously if the strongest signal’s SINR exceeds a threshold it can still be successfully received This phenomenon is called Capture Effect In this thesis we propose a joint transmit power control and backoff mechanism in IEEE 802 11 WLAN to exploit Capture Effect and enhance overall system performance In the proposed scheme we divide the network into three non-overlapped areas and assign different target received powers for each areas Stations in each area should tune their transmission powers to meet the target received power at Access Point (AP) Thus when AP receives two or more signals with different power levels it may receive correctly the signal with highest power level due to Capture Effect Moreover the backoff mechanism of IEEE 802 11 is adjusted in the scheme in consideration of fairness issue The main idea is that we assign the stations with lower received power level a better contention probability to access the channel to compensate their loss due to Capture Effect The simulation results show that the proposed design can get much higher throughput than the legacy IEEE 802 11 design with slightly loss on fairness
獎項日期2014 八月 15
原文English
監督員Szu-Lin Su (Supervisor)

引用此

A Joint Transmit Power Control and Backoff Mechanism to Exploit Capture Effect in IEEE 802 11 WLAN
謝誠, 廖. (Author). 2014 八月 15

學生論文: Master's Thesis