An energy-aware routing protocol in wireless sensor networks

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 netw...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2009-01, Vol.9 (1), p.445-462
Main Authors: Liu, Ming, Cao, Jiannong, Chen, Guihai, Wang, Xiaomin
Format: Article
Language:English
Subjects:
Algorithms
Clustering
Clustering algorithm
Data gathering
Data transmission
Energy consumption
Energy-aware
Intra-cluster coverage
Load
Performance evaluation
Sensors
Wireless communications
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Summary: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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s90100445