Dynamic routing for mitigating the energy hole based on heuristic mobile sink 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:
AST/UCMA/ISA/ACN'10 Proceedings of the 2010 international conference on Advances in computer science and information technology
Year:
2010

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Abstract

Because the nodes of a sensor network have limited node resources and are easily exposed to harsh external environment, they should be able to use energy efficiently, send data reliably, and cope with changes in external environment properly. Furthermore, the lifetime of networks adopting the multi hop routing is shortened by the energy hole, which is the rapid decrease of energy in the nodes surrounding the sink. This study proposes Dynamic Routing that solves the above-mentioned conditions at the same time by using a dynamic single path, monitoring its own transmission process, and moving the sink heuristically in response to change in surrounding environment. According to the results of our experiment, the proposed method increased network lifetime, and mitigated the energy hole and enhanced its adaptability to topological changes.