고신뢰도 무선센서네트워크를 위한 홉핑 센서 재배치에 대한 연구 = On Relocation of Hopping Sensors for High Reliability Wireless Sensor Networks

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 "http://www.darpa.mil"

2 J. Teng, "Sensor Relocation with Mobile Sensors: Design, Implementation, and Evaluation" 1-9, 2007

3 G. Wang, "Sensor Relocation in Mobile Sensor Networks" 2302-2312, 2005

4 A. Verma, "Selection and Navigation of Mobile Sensor Nodes Using a Sensor Network" 41-50, 2005

5 Z. Cen, "Relocation of Hopping Sensors" 569-574, 2008

6 W. Choi, "A Novel Framework for Energy - Conserving Data Gathering in Wireless Sensor Networks" 1985-1996, 2005