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In this paper, we efficiently adapt the prominent Ad Hoc On-Demand Distance Vector (AODV) routing protocol with a reactive Local Link Repair, AODV-LR, for effective deployment in restricted power-budget and bandwidth mobile ad hoc sensor networks (MASNET). We introduce a better replacement mechanism to the local repair phase of the AODV. Our new approach is a preemptive, self-repairing AODV (called AODV-PSR) scheme that is able to find an alternative link to a failing link. The new preemptive protocol achieves better performance than the ADOV-LR, due to its avoidance of packet buffering delay and excess use of control messages during link repair. Experimental results show a much lower obtained packet delay, a higher packet delivery ratio, and lower control message overhead. Hence, our mechanism is amenable to deployment in areas of restricted power-budget and bandwidth, such as a MASNET domain.
Date of Conference: 10-13 Jan. 2009