文献类型：期刊文献

英文题名：Significance-based energy-efficient path selection for multi-source underwater sensor networks

作者：An, Wei[1];Lin, Jiajun[2];Luo, Haiyan[3];Ci, Song[1,4]

机构：[1]Chinese Acad Sci, High Performance Network Lab, Inst Acoust, Beijing 100190, Peoples R China;[2]E China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China;[3]Cisco Syst Inc, Austin, TX 78759 USA;[4]Univ Nebraska Lincoln, Dept CEEN, Omaha, NE 68102 USA

年份：2013

卷号：13

期号：1

起止页码：30

外文期刊名：INTERNATIONAL JOURNAL OF SENSOR NETWORKS

收录：;EI(收录号：20215011304480);WOS:【SCI-EXPANDED(收录号:WOS:000318684300003)】；

基金：This work was partially supported by A3 Foresight under Grant No. 10925419, National Science and Technology Major Projects of the Ministry of Industry and Information Technology of China (Grant No. 2010ZX03004-001 and 2011ZX03005-004-02), National Science and Technology Special Project (No. 2012ZX03003010-004) and NSFC under Grant No. 61103158, 61102076 and 61271349.

语种：英文

外文关键词：multi-source underwater sensor networks; energy efficiency; network topology; acoustic channel condition; algorithm

摘要：Although numerous works have been done on optimising energy usage of sensors existing in Underwater Wireless Sensor Networks (UWSNs), no work has been done on jointly considering the mutual interconnections among paths of multi-source nodes under the given network topology and acoustic channel conditions. In this work, we consider the problem of data transmission from multiple source nodes to the sink node. The main contributions of this work are: (a) node significance is defined based on the distance and source node statuses; (b) given a number of source nodes, we formulate the problem of energy-efficient multiple paths, and develop a polynomial-time algorithm for deriving the optimal paths; (c) to refine the feasible number of source nodes, the upper and lower bounds are derived based on the network topology and acoustic channel conditions. Extensive simulation results show that our proposed scheme can achieve significant performance enhancement over the existing ones.