文献类型：期刊文献

英文题名：A relay node deployment strategy for energy-balance using a group Gaussian distribution

作者：Du, Guojie[1];Niu, Yugang[1];Zhao, Jiancong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Minist Educ, POB 411,130,MeiLong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：24

期号：4

起止页码：222

外文期刊名：INTERNATIONAL JOURNAL OF SENSOR NETWORKS

收录：;EI(收录号：20215011304544);WOS:【SCI-EXPANDED(收录号:WOS:000410403300002)】；

基金：This work was supported by National Natural Science Foundation (NNSF) from China (61273073, 61304044).

语种：英文

外文关键词：WSNs; wireless sensor networks; limited resource; energy-hole; relay node; deployment strategy; layered network; Gaussian distribution; standard deviations; energy-balance; network lifetime

摘要：Energy is one of the limited resources in a wireless sensor network (WSN), which inevitably results in the energy-hole phenomenon. One of the effective solutions is to deploy a certain number of relay nodes to alleviate the traffic load of sensor nodes. In this paper, the authors focus on the problem of relay node deployment in a layered network. By utilising a set of Gaussian distributions with different deviations in each layer, termed as group Gaussian distribution (GGD), this paper proposes a new relay node deployment strategy to balance energy consumption. Moreover, the energy consumption of each node and the energy-balance condition are analysed. And then, the actual requisite number of relay nodes and the standard deviations of Gaussian distributions in each layer are obtained. Both the theoretical analysis and the simulation results prove that the proposed deployment strategy significantly outperforms other node deployment schemes.