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In large-scale wireless sensor networks, multicast is an important routing service for the efficient data distribution required for activities, such as filtering scheme updates, the redistribution of the cryptography keys and targeted queries. Especially, the redistribution of cryptography keys is important for the robust secure communication within the multicast group. In this paper, we propose a hierarchical secure multicast group building method. In order to build the groups, we exploit genetic algorithms by considering the location information of the sensor nodes. We show the efficiency of our proposal through simulation, in terms of the standard deviation among group members.
Date of Conference: 28-30 June 2011