A Dependable Multipath Routing Protocol in Wireless Sensor Networks

Using overhearing technique to detect malicious packet-modifying attacks in wireless sensor networks

“…The transceiver of the sink is fault-free and sensing failures can be solved by a value fusion or a decision fusion [30]. Node crash failures are assumed to be solved by reliable routing protocol with local repairing [16,7,31].…”

“…The above mechanisms all require complicated key authentications. A multi-path routing algorithm was developed to detect modified packets during forwarding without the need of key authentication [16].…”

“…The OBD, a two-path detection mechanism (called Twopath) [16], and an on-demand routing protocol without MPA detection (called Original) based on AODV [32] were implemented for comparison using the network simulator 2 (NS2) [17]. The modified IEEE 802.11 DCF was selected as MAC protocol to provide overhearing functionality.…”

“…Both OBD and a two-path detection algorithm [16] were successfully implemented using the NS2 simulator [17]. Several varying scenarios were used for performance evaluation.…”