Journal of Computer Applications ›› 2005, Vol. 25 ›› Issue (12): 2896-2898.

• Network and distributed techno • Previous Articles     Next Articles

A novel optimization scheme for EDCA

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  1. School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-12-01 Published:2005-12-01

一种新的EDCA优化策略

孙强刘同佩   

  1. 上海大学通信与信息工程学院
  • 基金资助:

    上海市科技发展基金资助项目(045115012)

Abstract: To guarantee the QoS of WLAN(Wireless Local Area Network) after the network load increased,the technology of reserved contention window maintenance was applied to EDCA mechanism.When network was in low load,the performance was the same as the original access mechanism.As the load increased,it could greatly reduce the collision probability under stable condition.Therefore it can not only support QoS of the high priority traffic,but also improve the throughput of the whole network.

Key words: EDCA, Markov, QoS, WLAN

摘要: 为了保证网络负载增加后无线局域网的QoS,在EDCA机制的基础上运用了预约竞争窗口维护技术,当网络处于低负载时,性能与原接入机制一样,随着负荷的增加,在稳定条件下可以大大减少碰撞概率,从而既保证高优先级业务的QoS,又能提高整个网络的吞吐量。

关键词: 增强分布式信道接入, 马尔可夫, 服务质量, 无线局域网

CLC Number: