Rate Adaptation Algorithm for 802.11 Networks: a Dynamic Decision Approach

被引：0

作者：

Angeles Santos, M. ^{[1
]}

Villalon, Jose ^{[1
]}

Orozco-Barbosa, Luis ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Albacete Res Inst Informat, Albacete, Spain

来源：

PROCEEDINGS OF 2012 5TH JOINT IFIP WIRELESS AND MOBILE NETWORKING CONFERENCE (WMNC'2012) | 2012年

关键词：

IEEE; 802.11; rate adaptation algorithm;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The IEEE 802.11 standard specifies a set of transmission rates among which the sender may select the most suitable one based on the channel conditions. Traditionally, the sender increases the data transmission rate upon receiving the various consecutive acknowledge packets while the data transmission rate is decreased on the absence of acknowledgement packets. This procedure assumes that the channel conditions are the main source of packet transmission errors and losses. However, under medium or high load conditions, transmission impairments are mainly due to collisions. Under these conditions, reducing the data transmission based exclusively on the absence of feedback not only proves ineffective, but it acutually degrades the overall networks performance. In this paper, we introduce a novel rate adaptation mechanism capable of mitigating the effect of collisions using the information imbedded in the received packets. Simulations results show that our proposal limits the use of the data transmission adaptation mechanism which in turn results on a significant increase of the aggregated throughput.

引用

页码：75 / 80

页数：6

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