Long-chain wireless sensor networks are used in special scenes such as mines, tunnels, etc. The traditional wireless sensor network has only one Sink,so it causes the“hot spot”problem easily and reduces the life-time of the network when it is used in the long-chain scenes. In order to solve these problems,this paper proposes a Multi-Sink distributed power control algorithm. This algorithm uses the Multiple Sink network structure together with the idea of non-uniform cluster,and combines the multi-Sink network with the clustering Voronoi scoping routing al-gorithm. It allocates the optimal transmission range and power for each Sink,and clusters the network with each Sink as the cluster head,in order that the network topology is optimized on the basis of a good network coverage rate. Simulation results show that the new algorithm exhibits superior connectivity,power consumption validity,clustering interference,and network performance. Thus it can reduce the overall power consumption and prolong the service life of the network.%长链状无线传感器网络常用于矿井、隧道等特殊场景,传统的无线传感器网络由于只有一个Sink,应用在长链状无线传感器网络中容易造成Sink周围区域出现“热区”现象,影响网络整体生存期,为了解决上述问题,降低长链状无线传感器网络的整体能耗,延长网络生存期,提出一种多Sink分布式功率控制算法,该算法引入多Sink的网络结构,同时采用非均匀成簇的思想,将多Sink网络结构和分簇的Voronoi scoping路由算法进行结合,为每个Sink分配最优的通信半径和发射功率,将各Sink作为簇头,对网络进行分簇,从而在保证网络覆盖率的前提下,优化网络拓扑,仿真结果表明,该算法在连通度、能耗有效性、分簇干扰和网络性能上具有优势,可以有效的降低网络整体能耗、延长网络生存期。
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