On throughput performance of channel inequality in IEEE 802.11 WLANs

Chiapin Wang, Tsungnan Lin, Kuang Wei Chang

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)


In this paper we investigate the throughput performance of IEEE 802.11 Distributed Coordination Function (DCF) in the presence of physical-layer (PHY) inequality, i.e. varied channel conditions and/or unequal data rates determined by the Link Adaptation (LA) scheme. We present a theoretical model for DCF protocol with the LA scheme of AutoRate Fallback (ARF). The analysis results show that the system throughput of DCF-based WLANs is determined by the lowest data rate used with stations; throughput sharing among stations depends on the variation of link qualities rather than the difference of data rates. The simulation results validate the accuracy of our analytical model.

頁(從 - 到)4425-4431
期刊IEEE Transactions on Wireless Communications
出版狀態已發佈 - 2008 十一月

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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