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Sensors 2018, 18(1), 90;

Energy-Efficient Region Shift Scheme to Support Mobile Sink Group in Wireless Sensor Networks

Department of Informatics, Gyeongsang National University, Jinju 52828, Korea
College of Technological Innovation, Zayed University, P.O. Box 144534, Abu Dhabi, UAE
Network Engineering and Security Department, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan
Department of Computer Science and Engineering, Chungnam National University, Daejeon 34134, Korea
Author to whom correspondence should be addressed.
Received: 16 November 2017 / Revised: 19 December 2017 / Accepted: 28 December 2017 / Published: 30 December 2017
(This article belongs to the Section Sensor Networks)
Full-Text   |   PDF [461 KB, uploaded 30 December 2017]   |  


Mobile sink groups play crucial roles to perform their own missions in many wireless sensor network (WSN) applications. In order to support mobility of such sink groups, it is important to design a mechanism for effective discovery of the group in motion. However, earlier studies obtain group region information by periodic query. For that reason, the mechanism leads to significant signaling overhead due to frequent flooding for the query regardless of the group movement. Furthermore, the mechanism worsens the problem by the flooding in the whole expected area. To deal with this problem, we propose a novel mobile sink group support scheme with low communication cost, called Region-Shift-based Mobile Geocasting Protocol (RSMGP). In this study, we utilize the group mobility feature for which members of a group have joint motion patterns. Thus, we could trace group movement by shifting the region as much as partial members move out of the previous region. Furthermore, the region acquisition is only performed at the moment by just deviated members without collaboration of all members. Experimental results validate the improved signaling overhead of our study compared to the previous studies. View Full-Text
Keywords: mobile sink group; geocasting; mobility support; wireless sensor networks mobile sink group; geocasting; mobility support; wireless sensor networks

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Yim, Y.; Kim, K.H.; Aldwairi, M.; Kim, K.-I. Energy-Efficient Region Shift Scheme to Support Mobile Sink Group in Wireless Sensor Networks. Sensors 2018, 18, 90.

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