CAJ | 학술논문

IEEE 802.11e增强型分布式信道访问机制对高优先级业务服务质量的保证，是通过牺牲低优先级业务服务质量来实现的。为避免这种信道资源分配不公平的现象，提出一种优化算法。将信道中部分时隙合并起来构成合并时隙，高优先级和低优先级业务在合并时隙中被先后发送，而单个时隙通常只发送低优先级业务。仿真结果表明，该算法可以提高业务的吞吐量，当站点数目增多时，高优先级业务和低优先级业务的吞吐量均表现稳定，可达到各种业务公平利用信道资源的目的。
IEEE 802.11e증강형분포식신도방문궤제대고우선급업무복무질량적보증，시통과희생저우선급업무복무질량래실현적。위피면저충신도자원분배불공평적현상，제출일충우화산법。장신도중부분시극합병기래구성합병시극，고우선급화저우선급업무재합병시극중피선후발송，이단개시극통상지발송저우선급업무。방진결과표명，해산법가이제고업무적탄토량，당참점수목증다시，고우선급업무화저우선급업무적탄토량균표현은정，가체도각충업무공평이용신도자원적목적。
IEEE 802.11e Enhanced Distributed Channel Access(EDCA) guarantees the Quality of Service(QoS) of high priority traffic, at the same time low priority traffic is sacrificed. For the phenomenon of unfair distribution resources in the channel, an optimization algorithm is proposed in this paper. This algorithm combines part of time slot into Merge Time Slot(MTS). High and low priority traffics are sended in chronological order, while single usually sends low priority traffic. Simulation results show that this algorithm can improve the throughput of traffic, in the growing number of stations, the throughput performance of high and low priority traffics is stable, all kinds of traffic reach the purpose of fairly using channel resources.