文献类型：期刊文献

英文题名：Energy-aware self-organisation algorithms with heterogeneous connectivity in wireless sensor networks

作者：Luo, Xiaojuan[1];Yu, Huiqun[1];Wang, Xiang[1]

机构：[1]E China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：44

期号：10

起止页码：1857

外文期刊名：INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE

收录：;EI(收录号：20132616445386);WOS:【SCI-EXPANDED(收录号:WOS:000320019200006)】；

基金：The work was supported by the NSF of China under grants No. 60773094, 50803016 and 61173048, Shanghai Shuguang Program under grant No. 07SG32.

语种：英文

外文关键词：wireless sensor networks; heterogeneous connectivity; self-organisation; complex network

摘要：Heterogeneity of node energy is a common phenomenon in wireless sensor networks. In such node energy heterogeneous sensor network, how to balance the energy consumption is the key problem on extending the lifetime of the sensor network system. An energy-efficient self-organisation algorithm with heterogeneous connectivity based on energy-awareness is proposed. Each sensor node in the network adjusts its own transmission radius based on the local energy information during the constructing and operating phase. Thus heterogeneous network topology, in which the nodes can choose different transmission radius, is formed. In contrast to the homogeneous network model, in which the node carries the same radius, simulation and analysis are conducted to explore the topology characteristics and robustness with different node energy distribution. The degree distribution shows the scale-free property in the heterogeneous model. The proposed network model enjoys higher efficiency of transmitting data, less clustering, higher robustness under node random failures and longer network lifetime than those in the homogeneous ones.