摘要：

在低功耗自适应分簇算法中，无线传感网(WSN)的簇成员节点由于簇首时分复用调度的相互独立性会产生簇间干扰，并且还存在发射功率浪费的现象。为此，提出一种自适应功率控制及调度算法，在基站的辅助下，簇首通过监听邻居簇首调度及功率等级表来自适应地安排簇内节点的发射功率级和时隙。仿真结果表明，该算法能降低50%的簇间干扰，减小功率浪费。

关键词: 无线传感网, 簇间干扰, 自适应功率控, 锚簇首, 时分复用调度

Abstract:

The inter-cluster interference and transmission power wasting exist in the Low Energy Adaptive Clustering Hierarchy(LEACH) protocol because of the independence of Time Division Multiple Access(TDMA) scheduling between neighbor cluster-heads. This paper proposes an Adaptive Power Control and Scheduling(APCAS) algorithm based on sink node to reduce the energy wasting and inter-cluster interference through monitoring Scheduling and Power Level(SAPL) table of neighbor cluster-head by the cluster-head to arrange adaptively the SAPL table. Simulation results show that this algorithm can effectively reduce inter-cluster interference by 50 percent and the power wasting.

Key words: Wireless Sensor Network(WSN), inter-cluster interference, adaptive power control, anchor cluster head, Time Division Multiple Access(TDMA) scheduling

中图分类号: 

• TP393.03