现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
9期
5-8
,共4页
刘洪武%史胜西%蔡青春%杨国为%李明齐
劉洪武%史勝西%蔡青春%楊國為%李明齊
류홍무%사성서%채청춘%양국위%리명제
无线传感网络%媒质介入控制%时分复用协议%调度方式
無線傳感網絡%媒質介入控製%時分複用協議%調度方式
무선전감망락%매질개입공제%시분복용협의%조도방식
wireless sensor network%media access control%TDMA protocol%schedule mode
媒体访问控制(MAC)协议对无线传感网的性能具有重要影响.根据无线传感网在网络性能方面的要求,针对现有无线传感网协议在节点能耗和时延方面的不足,提出了一种IM?TDMA方案,根据节点流量的变化,动态地调节帧长,提高信道利用率;同时采用计数器管理及续传优先的调度方式,简化了调度复杂度,降低了节点能耗.仿真结果表明:IM?TDMA方案能有效地节约能耗、降低时延,可运用于实际无线传感网的MAC协议方案中.
媒體訪問控製(MAC)協議對無線傳感網的性能具有重要影響.根據無線傳感網在網絡性能方麵的要求,針對現有無線傳感網協議在節點能耗和時延方麵的不足,提齣瞭一種IM?TDMA方案,根據節點流量的變化,動態地調節幀長,提高信道利用率;同時採用計數器管理及續傳優先的調度方式,簡化瞭調度複雜度,降低瞭節點能耗.倣真結果錶明:IM?TDMA方案能有效地節約能耗、降低時延,可運用于實際無線傳感網的MAC協議方案中.
매체방문공제(MAC)협의대무선전감망적성능구유중요영향.근거무선전감망재망락성능방면적요구,침대현유무선전감망협의재절점능모화시연방면적불족,제출료일충IM?TDMA방안,근거절점류량적변화,동태지조절정장,제고신도이용솔;동시채용계수기관리급속전우선적조도방식,간화료조도복잡도,강저료절점능모.방진결과표명:IM?TDMA방안능유효지절약능모、강저시연,가운용우실제무선전감망적MAC협의방안중.
The medium access control(MAC)protocol has significant influence on the performance of wireless sensor net?works. According to the requirement of performance,taking account of the drawbacks of the current protocol in the time?delay and energy consumption,an instant?messaging based TDMA scheme is put forward. IM?TDMA improves channel utility by dy?namically changing the length of the TDMA frame according to the change of the node flow rate. The scheduling complexity was simplified and saves energy was reduced by using scheduling mode of coutner management and resume first. The simulation re?sults show that IM?TDMA scheme can improve channel utility and reduce the latency and energy consumption,so it can be used in wireless sensor MAC protocol scheme.
