Novel strategy for data dissemination to mobile sink groups in wireless sensor networks

Authors:
Soochang Park;Euisin Lee;Min-Sook Jin;Sang-Ha Kim
Affiliations:
Department of Computer Engineering, Chungnam National University, Republic of Korea;Department of Computer Engineering, Chungnam National University, Republic of Korea;Department of Computer Engineering, Chungnam National University, Republic of Korea;Department of Computer Engineering, Chungnam National University, Republic of Korea
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

In wireless sensor networks, studies in terms of data dissemination to individual mobile sinks traditionally rely on a strategy that consists of a virtual infrastructure to service current location of the sinks and per-sink foot-print chaining to support local mobility after location update. To adapt the strategy for supporting mobile sink groups, it might be simply considered to use a representative per a sink group in order to representatively update location and representatively make a foot-print chain. However, it may lead to considerable problems with respect to efficiency and robustness for data dissemination: inefficient data collection problem, intra-group location update problem, and relay path loss problem. In this letter, we propose a novel strategy for data dissemination decoupled with any member sink of a mobile sink group. In order to independently deal with a mobile sink group, the strategy is composed of three mechanisms: representative location update, distributed data collection, and per-group foot-print chaining.