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Group Mobility Support Protocol for Mobile Sinks Based on Grid Clusters in Wireless Sensor Networks

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5 Author(s)
Soochang Park ; Dept. of Comput. Eng., Chungnam Nat. Univ., Daejeon, South Korea ; Euisin Lee ; Hosung Park ; Jeongcheol Lee
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In wireless sensor networks, many studies on data dissemination to individual mobile sinks traditionally rely on a strategy that consists of a virtual infrastructure to serve current location of the mobile sinks and a per-sink foot-print chaining mechanism to support local mobility after location update. To adapt the strategy for supporting mobile sink groups, it may be simply considered to exploit a representative per a mobile sink group in order to representatively register location of the mobile sink group and representatively make a foot-print chain of the sink group. However, the representative manner may lead to considerable problems with respect to efficiency and robustness of data dissemination: inefficient data collection problem, needless location update problem, and relay path loss problem. These problems could be caused from dependency between the group and the representative, i.e. a member sink. Therefore, we propose a novel protocol for data dissemination decoupled with any member sink of a mobile sink group. In order to independently deal with a mobile sink group, the protocol is composed of three major mechanisms: 1) representative location update, 2) distributed data collection, and 3) per-group foot-print chaining.

Published in:

Advanced Information Networking and Applications (AINA), 2011 IEEE International Conference on

Date of Conference:

22-25 March 2011