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Sensors (Basel). 2010;10(10):9493-511. doi: 10.3390/s101009493. Epub 2010 Oct 21.

A Distance-based Energy Aware Routing algorithm for wireless sensor networks.

Author information

1
Department of Computer Engineering, Kyung Hee University, Suwon, Korea. wangjin@oslab.khu.ac.kr

Abstract

Energy efficiency and balancing is one of the primary challenges for wireless sensor networks (WSNs) since the tiny sensor nodes cannot be easily recharged once they are deployed. Up to now, many energy efficient routing algorithms or protocols have been proposed with techniques like clustering, data aggregation and location tracking etc. However, many of them aim to minimize parameters like total energy consumption, latency etc., which cause hotspot nodes and partitioned network due to the overuse of certain nodes. In this paper, a Distance-based Energy Aware Routing (DEAR) algorithm is proposed to ensure energy efficiency and energy balancing based on theoretical analysis of different energy and traffic models. During the routing process, we consider individual distance as the primary parameter in order to adjust and equalize the energy consumption among involved sensors. The residual energy is also considered as a secondary factor. In this way, all the intermediate nodes will consume their energy at similar rate, which maximizes network lifetime. Simulation results show that the DEAR algorithm can reduce and balance the energy consumption for all sensor nodes so network lifetime is greatly prolonged compared to other routing algorithms.

KEYWORDS:

energy efficiency; hop number; hotspot; network lifetime; routing; wireless sensor networks

PMID:
22163422
PMCID:
PMC3230965
DOI:
10.3390/s101009493
[Indexed for MEDLINE]
Free PMC Article
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