多节点协同传输无线传感器网络数据收集协议

Multi-Node Cooperative Transmission of Data Collection Protocols for Wireless Sensor Networks

为了使无线传感器网络在执行数据收集任务时付出更小的能量代价,并延长网络的生命周期,提出一种多节点协同传输的无线传感器网络数据收集协议(MCTP)。协议通过考虑节点在覆盖问题上的能量优化问题,采取节点交替协作的模式来使覆盖重叠面积较大的节点之间进行睡眠模式切换,节省能量消耗。在数据转发过程中,采用簇头间协同传输的方法来最小化路由损耗并均衡簇头能量负载。仿真结果表明,MCTP算法在降低簇头节点的平均能量损耗,延长簇头节点平均生命周期上具有较好效果。

For making wireless sensor networks pay a smaller energy costs in the implementation of the data collection tasks, this paper presented a data collection protocol of multi-node cooperative transmission in wireless sensor network（MCTP）. The protocol considers the node energy optimization on coverage problem and uses the modes of nodes alternate collaboration to switch the sleep modes between the nodes with larger overlapping areas, which can save the energy consumption. In the data forwarding process, the protocol uses the method of cooperative transmission between cluster heads to minimize routing loss and balance the cluster energy load. The simulation results show that the MCTP algorithm has a good effect on reducing the cluster nodes average energy loss and extending the average life cycle of cluster nodes.