科技广场
科技廣場
과기엄장
SCIENCE TECHNOLOGY PLAZA
2011年
11期
38-41
,共4页
无线局域网%服务质量%算法
無線跼域網%服務質量%算法
무선국역망%복무질량%산법
WLAN%Quality of Service%Algorithm
本文通过对IEEE802.11无线局域网的媒体接入控制(MAC:MediaAccessControl)层QoS(Quality of Service)支持技术进行研究,介绍了QoS参数,认识MAC接入机制DCF对提供QoS方面存在的局限性,提出了PCWA(Practical Contention Window Adjustment)算法,根据通信数据流状况模式(traffic pattern),不断调整高优先级的最佳竞争窗口尺度,使整个系统实时业务获得最大的吞吐率和最小的等待时间。
本文通過對IEEE802.11無線跼域網的媒體接入控製(MAC:MediaAccessControl)層QoS(Quality of Service)支持技術進行研究,介紹瞭QoS參數,認識MAC接入機製DCF對提供QoS方麵存在的跼限性,提齣瞭PCWA(Practical Contention Window Adjustment)算法,根據通信數據流狀況模式(traffic pattern),不斷調整高優先級的最佳競爭窗口呎度,使整箇繫統實時業務穫得最大的吞吐率和最小的等待時間。
본문통과대IEEE802.11무선국역망적매체접입공제(MAC:MediaAccessControl)층QoS(Quality of Service)지지기술진행연구,개소료QoS삼수,인식MAC접입궤제DCF대제공QoS방면존재적국한성,제출료PCWA(Practical Contention Window Adjustment)산법,근거통신수거류상황모식(traffic pattern),불단조정고우선급적최가경쟁창구척도,사정개계통실시업무획득최대적탄토솔화최소적등대시간。
Based on the IEEE802.11 wireless LAN media access control(MAC: MediaAccessControl) layer QoS(Quality of Service) support for technology research,describes the QoS parameters,understanding MAC DCF access mechanism to provide QoS on the limitations that exist,proposed PCWA(Practical Contention Window Adjustment) algorithm,according to the status of the communication data stream mode(traffic pattern),continually adjust the high-priority measure of the best competition in the window,so that the whole system real-time business for maximum throughput and minimum latency.