期刊名称:International Journal of Future Generation Communication and Networking
印刷版ISSN:2233-7857
出版年度:2013
卷号:6
期号:1
出版社:SERSC
摘要:Clustering is an efficient method adopted in various routing algorithms for wireless sensor networks. In this paper, we propose a Density-based Energy-efficient Clustering Algorithm (DECA). In DECA, we define the density of each node and regard it as an important evaluation metric. Together with nodes' residual energy under consideration, each cluster head is selected based on the density of nodes. We design an intra-cluster algorithm as well as a multi-hop inter-cluster routing algorithm. Moreover, we discuss the optimal number of clusters. Simulation results show that cluster heads are evenly distributed and our proposed routing algorithm do consume much less energy than some existed algorithms. The network lifetime is also largely prolonged.