Load and resource aware federation of disjoint sensor network segments
- 주제(키워드) Federation , Intermittent connectivity , Mobile data carrier , Network partitioning , Topology repair , Wireless sensor networks
- 관리정보기술 faculty
- 등재 SCOPUS
- 발행기관 Institute of Electrical and Electronics Engineers Inc.
- 발행년도 2017
- 회의명 2017 IEEE International Conference on Communications, ICC 2017
- 일자 21 May 2017 through 25 May 2017
- URI http://www.dcollection.net/handler/ewha/000000149803
- ISBN 9781467389990
- 본문언어 영어
- Published As http://dx.doi.org/10.1109/ICC.2017.7996321
초록/요약
Wireless sensor networks (WSNs) serving in hostile environments are susceptible to multiple collocated failures due to explosives and natural calamities such as avalanches, landslides, etc., which can partition the network into disjoint segments. In such a scenario, federating the segments becomes essential for reestablishing communication among segments and resuming the WSN operation. Placing relays has been a popular strategy for forming a connected inter-segment topology. In this paper, we tackle the federation problem while considering constrained relay availability. We exploit the use of a limited number of mobile relays to provide intermittent inter-segment connectivity. We propose FLOWER, a novel algorithm for Federation with LOW inter-segment latency and Even Relay load. FLOWER groups the segments into clusters and forms a star inter-cluster topology where each cluster is served by a distinct mobile relay. A cluster at the center of the area serves as a hub to bound inter-segment communication delay. In addition, FLOWER opts to prolong the lifetime of the mobile relays by balancing the energy overhead due to travel and wireless communication. We validate its performance through extensive simulation experiments. © 2017 IEEE.
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