An energy-efficient two phases cluster head selection in corona-based wireless sensor networks

被引:2
|
作者
Fan, Chung-Shuo [1 ]
机构
[1] Natl Chiao Tung Univ, Dept Comp Sci, Hsinchu 30010, Taiwan
关键词
WSNs; wireless sensor networks; energy efficiency; clustering; cluster head;
D O I
10.1504/IJAHUC.2015.071659
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Owing to unbalanced traffic pattern of wireless sensor networks (WSNs), larger load is imposed to cluster heads (CHs) around the sink. Under this situation, CHs closer to the BS drain their energy earlier than those farther away from the sink. This paper first formulates cluster density of each corona according to the energy consumption of each CH. Then, this paper defines the range of CH candidates in phase 1 and 2 to choose the suitable CH so that sensor nodes forward data towards the BS and reduce the energy consumption. This paper further adopts cluster maintenance, which implement the cross-level data transmissions when specific conditions happen. Simulation results show that the proposed TPS (Two Phases cluster head Selection in WSNs) effectively prolongs the network lifetime and reduces the energy consumption over low energy adaptive clustering hierarchy (LEACH) and multi-hop routing with LEACH (MR-LEACH).
引用
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页码:17 / 25
页数:9
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