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With commonness of utilizing wireless sensor networks in sensitive applications like military and civil domains, the necessity for network security and reliability has become a critical concern. In this paper, we proposed IFRP (an Intrusion/Fault tolerant Routing Protocol). IFRP uses both single and multipath to increase reliability and resiliency while considering energy efficiency. Routing has been switch from single path to multipath in the face of malicious behavior by local warden technique. In addition, IFRP detects and isolates intruder or faulty nodes by utilizing of local warden technique and centralized decision. Our simulations show that IFRP can increase reliability and effectiveness against nodes, which dropped packets, with acceptable energy consumption.
Date of Conference: 10-12 Oct. 2011