Theoretic Analysis of IEEE 802.11 Rate Adaptation Algorithm SampleRate

被引：8

作者：

He, Jianhua ^{[1
]}

Guan, Wenyang ^{[1
]}

Bai, Lin ^{[2
]}

Chen, Kai ^{[3
]}

机构：

[1] Swansea Univ, Coll Engn, Swansea, W Glam, Wales

[2] Beihang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Informat Secur & Engn, Shanghai, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2011年 / 15卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

IEEE; 802.11; link adaptation; Markov chain; multiple access control; CSMA/CA; performance modeling;

D O I：

10.1109/LCOMM.2011.031411.102497

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper we investigate rate adaptation algorithm SampleRate, which spends a fixed time on bit-rates other than the currently measured best bit-rate. A simple but effective analytic model is proposed to study the steady-state behavior of the algorithm. Impacts of link condition, channel congestion and multi-rate retry on the algorithm performance are modeled. Simulations validate the model. It is also observed there is still a large performance gap between SampleRate and optimal scheme in case of high frame collision probability.

引用

页码：524 / 526

页数：3