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On Relocation of Hopping Sensors for High Reliability Wireless Sensor Networks  

Kim, Moon-Seong (특허청 정보통신심사국)
Park, Kwang-Jin (원광대학교 전기정보통신공학과)
Publication Information
Journal of Internet Computing and Services / v.12, no.2, 2011 , pp. 47-53 More about this Journal
Abstract
When some sensors under Wireless Sensor Networks fail or become energy-exhausted, redundant mobile sensors might be moved to recover the sensing holes. Within rugged terrain where wheeled sensors are unsuitable, other type of mobile sensors, such as hopping sensors, are needed. In this paper, we address the problem of relocating hopping sensors to the detected sensing holes. Recent study for this work considered the relocation using the shortest path between clusters; however, the shortest path might be used repeatedly and create other sensing holes. In order to overcome the mentioned problem, we propose relocation schemes using the most disjointed paths or multi-paths. Simulation results show that the proposed schemes guarantee more balanced migration distributions of efficient sensors and higher movement success ratios of required sensors than those of the shortest path-based scheme.
Keywords
Mobile Sensors; Hopping Sensors; Sensor Relocation; Wireless Sensor Network;
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  • Reference
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