A DELAY BASED BACKOFF SCHEME FOR WLAN WITH QoS GUARANTEE AND ITS PERFORMANCE

被引：0
|
作者：
Li Xiaohui Kou Weidong Liu Nai’an Yi Kechu (State Key Laboratory of ISN
机构：
来源：
Journal of Electronics(China) | 2005年 / 04期
基金：
中国国家自然科学基金;
关键词：
Wireless Local Area Network (WLAN); Distributed Coordination Function (DCF); Backoff; Quality of Service (QoS);
D O I：
暂无
中图分类号：
TN925.93 [];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
Based on the Distributed Coordination Function (DCF) and the Enhanced DCF (EDCF) mechanisms in IEEE 802.11 and 802.11e, a novel backoff scheme for Wireless Local Area Network (WLAN) is proposed. The scheme is to solve the problem of the packet loss and the decrease of performance due to the increasing Contention Window (CW) when there are continuous collisions. In the proposed scheme, the CW of the packet will change dynamically with different delay for the different traffics. Mathematic formulas are presented to indicate the relationship between the CW and the delay character. The performance of the new scheme is also discussed with simulation results. The results show that it helps WLAN system handle multimedia simultaneously.
引用
收藏
页码：416 / 421
页数：6
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