Dynamic Routing Algorithm for Reliability and Energy Efficiency in Wireless Sensor Networks

Authors:
Seong-Yong Choi;Jin-Su Kim;Seung-Jin Han;Jun-Hyeog Choi;Kee-Wook Rim;Jung-Hyun Lee
Affiliations:
Dept. of Computer Science Engineering, Inha University,;Dept. of Computer Science Engineering, Inha University,;School of Information & Media, Kyungin Women's College,;School of Management & Tourism, Kimpo College,;Dept. of Computer and Information Science, Sunmoon University, South Korea;Dept. of Computer Science Engineering, Inha University,
Venue:
FGIT '09 Proceedings of the 1st International Conference on Future Generation Information Technology
Year:
2009

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Abstract

What are important in wireless sensor networks are energy efficiency, reliable data transmission, and topological adaptation to the change of external environment. This study proposes dynamic routing algorithm that satisfies the above-mentioned conditions at the same time using a dynamic single path in wireless sensor networks. In our proposed algorithm, each node transmits data through the optimal single path using hop count to the sink and node average energy according to the change of external environment. For reliable data transmission, each node monitors its own transmission process. If a node detects a damaged path, it switches from the damaged path to the optimal path and, by doing so, enhances network reliability. In case of a topological change, only the changed part is reconstructed instead of the whole network, and this enhances the energy efficiency of the network.