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Using multicast technology can significantly reduce energy consumption and prolong the life time of nodes in query-based wireless sensor networks (WSNs). Existing multicast protocols for WSNs mainly focus on covering multicast-scope zone effectively, and assume secure communication between all nodes. In order to satisfy security requirements and control of energy consumption, we present Steiner-based Hierarchical Secure Multicast Routing Protocol (SHSMRP) for wireless sensor network. The resulting protocol combines the idea of Steiner tree and cluster network topology, which is scalable and energy-efficient for large group communications in WSN. Furthermore, the proposed protocol adopts secure communication mechanism to ensure the data integrity, security and verifiability. And through simulation experiments, it is verified that the proposed protocol's performance in aspect of energy consumption have reached the mainstream of non-secure multicast routing protocol for WSNs.
Date of Conference: 22-24 Jan. 2010