Throughput analysis and admission control for IEEE 802.11a

被引：91

作者：

Ergen, M ^{[1
]}

Varaiya, P ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

MOBILE NETWORKS & APPLICATIONS | 2005年 / 10卷 / 05期

关键词：

mobile networks; wireless LAN; IEEE; 802.11; distributed coordination function; admission control;

D O I：

10.1007/s11036-005-3364-9

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We propose a new Markov model for the distributed coordination function (DCF) of IEEE 802.11. The model incorporates carrier sense, non-saturated traffic and SNR, for both basic and RTS/CTS access mechanisms. Analysis of the model shows that the throughput first increases, and then decreases with the number of active stations, suggesting the need for an admission control mechanism. We introduce such a mechanism, which tries to maximize the throughput while maintaining a fair allocation. The maximum achievable throughput is tracked by the mechanism as the number of active stations increases. An extensive performance analysis shows that the mechanism provides significant improvements.

引用

页码：705 / 716

页数：12