摘要
简述了IEEE802.11e的访问控制机制中的增强型分布式协调功能(Enhanced Distributed Coordination Function,EDCF),针对IEEE802.11e QoS机制在高负载情况下业务性能下降的问题,提出了一种新的基于EDCF的自适应方法,并用OPNET软件进行了仿真实现。仿真结果表明,该方法能够有效减少网络传输的延时,显著提高数据吞吐量,极大地改善了QoS的性能。
Enhanced Distributed Coordination Function（EDCF）of IEEE802.11e is described.A new adapt-EDCF approach is proposed for IEEE802.11 performance degrading.OPNET simulation is also performed.Simulation result show that this approach can decrease the delay effectively,enhance throughput evidently and improve QoS dramatically.
出处
《无线电通信技术》
2010年第5期6-7,13,共3页
Radio Communications Technology
