摘要： 为提高无线传感器网络性能均衡性,延长网络生命周期,对其三维拓扑控制进行研究。定义判断拓扑变化程度的节点度因数,构建评价网络综合性能的节点度估计模型,并提出基于该模型的拓扑控制算法,通过布置传感器节点、创建网络拓扑结构、生成数据传输链路和修正节点发射功率实现拓扑创建与优化。仿真实验和节点度因数、网络能量衰减、网络能效均衡性等对比结果表明,与LEBTC算法相比,该算法性能均衡性强,拓扑综合性能较好。

关键词: 无线传感器网络, 三维拓扑控制, 节点度因数, 节点发射功率, 数据传输链路

Abstract: In order to improve the performance balance of Wireless Sensor Network(WSN) and prolong the network lifetime,this paper researches the 3D topology control of WSN.It defines the node degree factor which judges topology change the degree,constructs a node degree estimation model to evaluate the comprehensive performance,and proposes a topology control algorithm based on this model.In this algorithm,the topology creation and optimization are realized by arranging sensor nodes,creating network topology,generating data transmission link and correcting node transmit power.The results of experiment simulation and the performance comparison of node degree factor,network energy attenuation and the network energy efficiency balance show that,compared with LEBTC algorithm,the proposed algorithm has better performance balance and topology synthesis performance.

Key words: Wireless Sensor Network(WSN), 3D topology control, node degree factor, node transmission power, data transmission link

中图分类号: 

• TP393.02