现代电子技术2011，Vol.34Issue(1)：11-13,3.
IEEE802.11DCF的一种改进退避算法
Improved Back-off Algorithm for IEEE 802.11 DCF
郑文俊 1周凯 2马东堂2
作者信息
- 1. 宁波市劳动和社会保障局,职业技能培训中心,浙江,宁波,315000
- 2. 国防科学技术大学,电子科学与工程学院,湖南,长沙,410073
- 折叠
摘要
Abstract
The binary exponential back-off (BEB) algorithm is used for the distributed coordination function (DCF) in the IEEE802. 11 WLAN. An improved backoff algorithm is proposed to enhance the performance of the algorithm. In the proposed algorithm, the collision history of the previous packets is considered and the collision window (CW) is reduced exponentially,and the distributed inter-frame space ( DIFS) overhead resulting in DIFS periods in the back-off procedure is minimized.Based on network simulation platform of OPNET, the performance of the improved algorithm is simulated and evaluated.Simulation results show that the improved algorithm has higher throughput and lower delay than the BEB algorithm and the exponential increase and exponential decrease ( EIED) algorithm.关键词
无线局域网/分布式协调功能/退避算法/二进制指数退避分类
信息技术与安全科学引用本文复制引用
郑文俊,周凯,马东堂..IEEE802.11DCF的一种改进退避算法[J].现代电子技术,2011,34(1):11-13,3.
