International Conference on Information Technology and Computer Science, 3rd (ITCS 2011)
26 Secure and Load-Balanced Routing in Wireless Sensor Networks
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Routing protocols in wireless sensor networks (WSNs) are susceptible to a number of attacks depending on the nature of the protocol, its application, and the environment in which the protocol is intended to be used. Routing protocols that do not take the malicious attacks into account can not be easily temper proofed. Lifetime optimization and security are two important design issues for multi-hop wireless sensor networks with non-replenishable energy resources. In this paper, we present a secure and load balancing routing (SLBR) protocol to address these two issues concurrently through balanced energy consumption and probabilistic random walking. SLBR is designed with two configurable parameters, load balance control and security level. Load balance is used to enforce energy balance and increase the lifetime of network. Security level is designed to determine the probabilistic distribution of the random walking that provides routing security. Theoretical analysis and simulation results show that the proposed scheme can provide excellent balance between routing efficiency and energy consumption while preventing routing traceback attacks.