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Issue No. 01 - January (2011 vol. 10)
ISSN: 1536-1233
pp: 108-121
Xiaoqin Chen , Star Intellect Pty Ltd, Melbourne
Dhammika Jayalath , Queensland University of Technology, Queensland
Haley M. Jones , The Australian National University, Canberra
In wireless mobile ad hoc networks (MANETs), packet transmission is impaired by radio link fluctuations. This paper proposes a novel channel adaptive routing protocol which extends the Ad hoc On-Demand Multipath Distance Vector (AOMDV) routing protocol to accommodate channel fading. Specifically, the proposed Channel-Aware AOMDV (CA-AOMDV) uses the channel average nonfading duration as a routing metric to select stable links for path discovery, and applies a preemptive handoff strategy to maintain reliable connections by exploiting channel state information. Using the same information, paths can be reused when they become available again, rather than being discarded. We provide new theoretical results for the downtime and lifetime of a live-die-live multiple path system, as well as detailed theoretical expressions for common network performance measures, providing useful insights into the differences in performance between CA-AOMDV and AOMDV. Simulation and theoretical results show that CA-AOMDV has greatly improved network performance over AOMDV.
Mobile ad hoc networks, routing protocols, channel adaptive routing.
Xiaoqin Chen, Dhammika Jayalath, Haley M. Jones, "Channel-Aware Routing in MANETs with Route Handoff", IEEE Transactions on Mobile Computing, vol. 10, no. , pp. 108-121, January 2011, doi:10.1109/TMC.2010.144
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