無線感測網路（Wireless Sensor Network , WSNs）中的感測器節點雖然具有省電的特性，但是感測器節點是無法進行充電，因此在電力的消耗上是有限制的。如何有效的管理感測器節點的電量並延長整體網路的存活時間(lifetime) 是很重要的議題。 本篇論文提出一個應用於無線感測網路中之最佳休眠控制(The Optimal Sleep Control For Wireless Sensor Networks )，當整個無線感測網路採用隨機佈置感測器節點後，透過感測器節點與資料收集中心的距離來決定進入休眠的機率，此方式有效地減少離資料收集中心越近的感測節點代傳資料的次數，達到整個網路的負載平衡；而進入休眠的感測器節點會依據自己剩餘電量來進行休眠的排程來達到省電的效果。 The sensor node in Wireless Sensor Network is with the characteristics of low electricity consumption, but the sensor node can’t be rechargeable. Therefore, the consumed of electricity is limited. How to effectively control the electricity of the sensor node and extend the life time of the whole network become a very important issue. This thesis sets forth “The Optimal Sleep Control For Wireless Sensor Networks”. When the sensor nodes are set randomly in the entire network and the sleeping probability is determined through the distance between the sensor node and the sink. This method will effectively reduce the frequency of the transmission of the sensor nodes more close to the sink and reach the loading balance of the whole network. However, the sleeping sensor nodes will process their sleeping schedule according to their own residual electricity and achieve the effectiveness of saving electricity.
