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为了增强无线传感器网络的监测质量和提高网络可靠性,通常将传感器节点大规模、高密度地部署在感兴趣的目标区域内,这就导致网络中大量节点的覆盖区域相互交迭。这种覆盖冗余会直接导致采集、传输数据的冗余以及信道的干扰,从而导致不必要的能量消耗,提出了一种传感半径的动态调整算法,在保证网络覆盖性的前提下,通过对节点传感半径的调整,来降低网络的覆盖冗余,从而大大减少冗余数据采集和传输所造成的能量浪费和网络冲突。仿真结果证明算法取得了良好的效果。
In order to enhance the monitoring quality of wireless sensor networks and improve network reliability, sensor nodes are usually deployed in large-scale and high-density target areas of interest, which leads to overlapping of the coverage area of a large number of nodes in the network. This coverage redundancy will directly lead to acquisition, transmission data redundancy and channel interference, resulting in unnecessary energy consumption. A dynamic adjustment algorithm for sensing radius is proposed, which ensures the network coverage through the premise of The node sensing radius adjustment, to reduce the coverage of the network redundancy, thereby reducing redundant data collection and transmission caused by the waste of energy and network conflicts. Simulation results show that the algorithm has achieved good results.