An Energy-Aware Routing Protocol in Wireless Sensor Networks

Sensors

Ming Liu²  Jiannong Cao¹  Guihai Chen³ 

[1] Department of Computing, Hong Kong Polytechnic University, Hong Kong, P.R. China; E-Mail:;School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, P.R. China; E-Mail:;State Key Laboratory of Novel Software Technology, Nanjing University, Nanjing, 210093, P.R. China; E-Mail:

关键词: Data gathering;    Energy-aware;    Clustering algorithm;    Intra-cluster coverage;   

DOI  :  10.3390/s90100445

来源: mdpi

【 摘 要 】

The most important issue that must be solved in designing a data gathering algorithm for wireless sensor networks (WSNS) is how to save sensor node energy while meeting the needs of applications/users. In this paper, we propose a novel energy-aware routing protocol (EAP) for a long-lived sensor network. EAP achieves a good performance in terms of lifetime by minimizing energy consumption for in-network communications and balancing the energy load among all the nodes. EAP introduces a new clustering parameter for cluster head election, which can better handle the heterogeneous energy capacities. Furthermore, it also introduces a simple but efficient approach, namely, intra-cluster coverage to cope with the area coverage problem. We use a simple temperature sensing application to evaluate the performance of EAP and results show that our protocol significantly outperforms LEACH and HEED in terms of network lifetime and the amount of data gathered.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.