摘要： 现有无线传感器网络拓扑控制算法大多基于理想网络模型，且需要节点位置信息。为此，提出一种基于路径损耗的拓扑控制算法。该算法无需任何节点位置信息，通过计算两节点间小于或等于3跳的前向与后向路径损耗，构建网络拓扑。仿真结果表明，该算法能降低网络能耗及节点间的通信干扰，保证网络连通性，延长网络生命周期。

关键词: 拓扑控制, 路径损耗, 能量均衡, 网络连通性, 无线传感器网络

Abstract: Existing Wireless Sensor Network(WSN) topology control algorithms are mostly based on ideal wireless environment, and it need node position information. This paper proposes a topology control algorithm based on path loss. It constructs topology through computing path loss of forward and backward paths with three or fewer hops from one node to another. Simulation result shows that this algorithm can reduce network energy consumption and the communication interference between the nodes, maintain the network connectivity, prolong the network life cycle.

Key words: topology control, path loss, energy balance, network connectivity, Wireless Sensor Network(WSN)

中图分类号: 

• TP393