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http://dx.doi.org/10.7840/KICS.2011.36A.6.617

Energy Efficient Data Dissemination Scheme for Mobile Sink Groups in WSNs  

Mo, Hee-Sook (한국전자통신연구원 RFID/USN연구부 RFID/USN 플랫폼연구팀)
Kim, Sang-Ha (충남대학교 전기정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.6A, 2011 , pp. 617-625 More about this Journal
Abstract
In wireless sensor networks, data dissemination protocols have been proposed for mobile sink groups that are characterized by geographically staying closely and collective movement. They usually exploit flooding technology for mobility supporting and data delivery guarantee. However, it causes the excessive energy consumption of all sensor nodes in the group region due to data delivery participation. Moreover, the costs of the flooding would become higher in proportional to the group region. In this paper, we propose an energy efficient data dissemination scheme that resolves these problems. The virtual infrastructure called a 'pipe' is used as a rendezvous area. A source delivers data to the pipe, from which member sinks in the group retrieve it directly. Simulation results showed that this solution has better performance than existing protocols in terms of energy consumption as it reduces the number of regional flooding and eliminates unnecessary data flooding.
Keywords
wireless sensor networks; mobile sink group; data dissemination; geocasting; data pipe;
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