Modelling Capture Effect for 802.11 DCF under Rayleigh Fading

被引：0
|
作者：
Sutton, Gordon J. [1 ]
Liu, Ren Ping [2 ]
Yang, Xun [2 ]
Collings, Iain B. [2 ]
机构：
[1] CSIRO Math & Informat Sci, N Ryde, NSW 1670, Australia
[2] CSIRO, ICT Ctr, Sydney, NSW, Australia
来源：
2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS | 2010年
关键词：
capture effect; channel fading; Markov chain; IEEE; 802.11; performance evaluation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The capture effect can occur in IEEE 802.11 distributed coordination function (DCF) wireless systems when packets arrive with different powers. Packets with high power can effectively swamp low power packets, such that they are received successfully, when otherwise a collision would have occurred. We present a network performance prediction model that accurately incorporates the capture effect into a 3-D Markov Chain. The model is solved efficiently with the Collapsed Transition onto Basis (CTB) approach. The performance of the model is significantly better than existing models in terms of estimating important QoS measures, including packet delay and loss, as well as collision probability and throughput.
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页数：6
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