摘要
针对网络拓扑结构稳定的实际应用,提出了一种混合簇头选举算法,包括以质心(能量中心)为基础的簇头选举方式和以剩余能量为基础的簇头选举方式。通过降低系统内簇头与簇内节点之间通信的总能量和平均传输时延来提高网络的生命周期。仿真结果表明,与GAF算法相比,网络的生命周期得到了较大幅度的提高,并且随着单簇节点数的增加,网络的生命周期也随之增加。实验证明,该方法适用于组建大规模无线传感器网络。
Based on the practical application of network topology stability, a hybrid cluster-head selected algorithm was put forward, it contained a cluster-head selected method which was based on the barycenter (or the energy center) and a clusterhead selected method which was based on the surplus energy. And the performance of the system would be improved by decreasing the whole communicate energy between the cluster-head and the cluster member and decreasing the average time-delay. As was shown in the simulation resuh, compared with GAF, the life period of the network was improved greatly. The life period of the network would be increased along with the increasement of the number of the cluster nodes. And the method is adaptive to build a large scale wireless sensor networks
出处
《计算机应用研究》
CSCD
北大核心
2008年第4期1227-1229,1260,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(50674010)
关键词
无线传感器网络
混合簇头选举算法
地理位置
质心
wireless sensor network (WSN)
hybrid cluster-head selected
geography
barycenter