基于协作的无线传感器网络休眠调度算法

Coverage-preserving density control algorithm based on cooperation in wireless sensor networks

提出了一种新的保证覆盖的休眠调度协议CPSBC。该协议基于一种协作感知模型(CSM),与传统的圆盘感知模型和概率覆盖模型的不同之处在于,CSM充分利用了多个传感器节点的协作探测特性。基于CPSBC,对网络覆盖具有最小贡献的,同时休眠后并不影响原始覆盖的节点被调度进入休眠。理论证明和仿真试验表明,CPSBC协议能够以较少的能耗来保证原始网络覆盖率,从而达到较好的能量有效性。

This paper proposed CPSBC, a coverage-preserving self-scheduling protocol. CPSBC was based on a new sensing model-cooperative sensing model （CSM） other than traditional disk sensing model （DISK） and probability coverage model （PROB） , and multi-sensors＇ cooperative exploration was considered in it. With CPSBC, sensor nodes that had minimum contribution on coverage and satisfy coverage preserving rule meanwhile would be scheduled to fall in asleep in each round. Theoretical analysis and simulations prove that CPSBC can keep the original network coverage with less on-duty nodes than DISK and PROB mechanisms, thus results in higher energy efficiency.