A Rate Adaptation Algorithm for IEEE 802.11 WLANs Based on MAC-Layer Loss Differentiation

被引：0
作者：
Pang, Qixiang [1 ]
Leung, Victor C. M. [1 ]
Liew, Soung C.
机构：
[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada
来源：
2ND INTERNATIONAL CONFERENCE ON BROADBAND NETWORKS (BROADNETS 2005) | 2005年
关键词：
IEEE; 802.11; WLAN; DCF; loss differentiation; rate adaptation; automatic rate fallback; PROTOCOL; CAPACITY; DESIGN;
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：
In a WLAN subject to variable wireless channel conditions, rate adaptation plays an important role to more efficiently utilize the physical link. However, the existing rate adaptation algorithms for IEEE 802.11 WLANs do not take into account the loss of frames due to collisions. In a WLAN with coexistence of multiple stations, two types of frame losses due to (a) link errors and (b) collisions over the wireless link can coexist and severely degrade the performance of the existing rate adaptation algorithms. In this paper, we propose a new automatic rate fallback algorithm that can differentiate the two types of losses and sharpen the accuracy of the rate adaptation process. Numerical results show that the new algorithm can substantially improve the performance of IEEE 802.11 WLANs.
引用
收藏
页码：709 / 717
页数：9
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