摘要
针对802.11eMAC协议不能良好地处理不同类型业务的节点间的公平性问题,提出一种基于优先级动态调整的802.11eMAC协议(P-MAC)。该协议网络中接入业务根据优先级设置权重系数,通过自适应调整业务权重系数,使不同业务均能公平地接入网络,从而保障业务的公平性问题。仿真结果表明:P-MAC协议相比于802.11eMAC协议,低业务数据流接入信道的机会增大了8%,与此同时,整个网络的平均吞吐量并未有所下降。
The 802.11e MAC protocol can＇ t solve the fair access to channel between nodes with different services.For this problem,the paper proposed a new protocol for 802.11e MAC based on adjustable priority mechanism （PMAC）.The main idea is that the protocol sets the weight coefficients of the low priority to improve the faimess between the different services by optimization the corresponding weight coefficients.Simulation results show that the new protocol makes low priority get 8％ more chance to access channel than 802.11e MAC while the average throughput of the network is not reduced.
出处
《成都信息工程学院学报》
2014年第3期244-249,共6页
Journal of Chengdu University of Information Technology
基金
教育部新世纪优秀人才支持计划资助项目(NCET-11-1-56)
四川省科技支撑计划重点资助项目(2013GZ0028)
四川省科技基础条件平台资助项目(2012KJPT001)
