大规模WSN的三层拓扑架构及其拓扑控制

针对多sink的大规模WSN,提出一种新的三层网络拓扑架构,以解决现有平面型和两层分簇型拓扑架构与大规模WSN环境不相适应的问题；在分析各层数据通信策略的基础上,重点研究了基于瓶颈sink节点的关键层拓扑控制算法,为核心层数据通信提供可靠性支持。仿真实验表明,所提出的大规模WSN三层拓扑控制结构和拓扑控制算法有助于平衡全局通信负载,控制关键通信层能量消耗,提高网络监测的鲁棒性。

Three-layer topology architecture and topology control algorithm for large-scale wireless sensor network

Aimed at the application characteristics of the large-scale Wireless Sensor Network (WSN) with more sink nodes, a new 3-layer topology architecture was proposed to solve the problem of the incompatibility of the traditional topology structure in large-scale WSN. The data communication strategy for each level was analyzed, and a topology control algorithm for top-level was proposed based on the bottleneck-nodes, which would provide higher reliability control for the key-level. The experimental results indicate that, the new topology control strategy helps to balance the communication load of the nodes, and the energy consumption in the key-level can be reduced remarkably.