异构分簇的无线传感器网络拓扑控制  

Heterogeneous Cluster-Based Topology Control Algorithms for Wireless Sensor Networks

作　　者：张雪凡[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建重点实验室,上海200072

出　　处：《应用科学学报》2011年第1期39-43,共5页Journal of Applied Sciences

基　　金：国家自然科学基金(No.60872021);上海市重点学科和科委重点实验室项目基金(No.S30108;No.08DZ2231100)资助

摘　　要：在拓扑结构变化较小的无线传感器网络中,为了减小分簇算法在簇头选择过程中的能量损耗,该文提出一种分簇拓扑控制算法.该算法以功能较强的异构簇头为中心,将一个簇分为内外两层,外层再进一步分成可以并行工作的多个子区,既保留了以簇头为中心的控制方式的高效性,又兼有多跳的灵活性.仿真分析与实验证明,以该算法构成的系统具有以下优点:减小了节点的平均发送半径,均衡了能耗;有效降低了簇间干扰;提高了系统的吞吐量.In wireless sensor networks in which the topology change is small, to reduce energy consumption in cluster head selection, a cluster-based topology control algorithms is proposed. The cluster head is made much more powerful, partitioning a cluster into two rings. The outer ring is further divided into smaller sectors. This algorithm has advantages of both high efficiency in controlling cluster head center, and flexibility of multi-hop nodes. A system based on HCTCA can reduce the average transmission radius of nodes and inter-cluster interferences, and improve the network throughput.

关 键 词：无线传感器网 拓扑控制 异构簇 簇间干扰 

分 类 号：TN929.5[电子电信—通信与信息系统]