计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
1期
4-6,10
,共4页
无线传感器网络%数据传送%时间驱动%事件驱动%事件触发
無線傳感器網絡%數據傳送%時間驅動%事件驅動%事件觸髮
무선전감기망락%수거전송%시간구동%사건구동%사건촉발
wireless sensor network%data transport mechanism%time-driven%event-driven%event-trigger
可靠的数据传送是无线传感器网络(Wireless Sensor Network,WSN)的基本要求.通过分析现有WSN的应用层数据传送机制,指出它们的不足之处,并提出了WSN的闭环事件触发型数据传送机制.该机制中,源节点根据目标节点的反馈,决定是否继续发送数据.这个机制具有发送可靠、产生通信数据量和冗余数据量少的优点.理论分析及仿真结果表明,该机制在信道不稳定的WSN中具有很好的效果.
可靠的數據傳送是無線傳感器網絡(Wireless Sensor Network,WSN)的基本要求.通過分析現有WSN的應用層數據傳送機製,指齣它們的不足之處,併提齣瞭WSN的閉環事件觸髮型數據傳送機製.該機製中,源節點根據目標節點的反饋,決定是否繼續髮送數據.這箇機製具有髮送可靠、產生通信數據量和冗餘數據量少的優點.理論分析及倣真結果錶明,該機製在信道不穩定的WSN中具有很好的效果.
가고적수거전송시무선전감기망락(Wireless Sensor Network,WSN)적기본요구.통과분석현유WSN적응용층수거전송궤제,지출타문적불족지처,병제출료WSN적폐배사건촉발형수거전송궤제.해궤제중,원절점근거목표절점적반궤,결정시부계속발송수거.저개궤제구유발송가고、산생통신수거량화용여수거량소적우점.이론분석급방진결과표명,해궤제재신도불은정적WSN중구유흔호적효과.
Reliable data transmission is basic requirement in a Wireless Sensor Network(WSN).In this paper,a comparative investigation of existing data transport mechanisms of application layer is conducted in WSN and their deficiencies are pointed out.The closed-loop event-triggered data transport mechanism is introduced in WSN.According to the feedback of destination node,the release node evaluates whether to send data in this mechanism.This mechanism improves the delivery rate and decreases data redundancy and communication traffic in WSN.The analysis and simulation validate that this mechanism is quite effective in WSN with channel instability.
