Unsaturated throughput analysis of IEEE 802.11 in presence of non ideal transmission channel and capture effects

被引：185

作者：

Daneshgaran, F.

Laddomada, M. ^{[1
]}

Mesiti, F. ^{[1
]}

Mondin, M. ^{[1
]}

机构：

[1] Politecn Torino, DELEN, Turin, Italy

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2008年 / 7卷 / 04期

关键词：

capture; DCF; Distributed Coordination Function; fading; IEEE; 802.11; MAC; Rayleigh; rate adaptation; saturation; throughput; unsaturated; non-saturated;

D O I：

10.1109/TWC.2008.060859

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：

In this paper, we provide a throughput analysis of the IEEE 802.11 protocol at the data link layer in non-saturated traffic conditions taking into account the impact of both transmission channel and capture effects in Rayleigh fading environment. The impact of both non-ideal channel and capture become important in terms of the actual observed throughput in typical network conditions whereby traffic is mainly unsaturated, especially in an environment of high interference. We extend the multi-dimensional Markovian state transition model characterizing the behavior at the MAC layer by including transmission states that account for packet transmission failures due to errors caused by propagation through the channel, along, with a state characterizing the system when there are no packets to be transmitted in the buffer of a station. Finally, we derive a linear model of the throughput along with its interval of validity. Simulation results closely match the theoretical derivations confirming the effectiveness of the proposed model.

引用

页码：1276 / 1286

页数：11

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