Robust Forwarding for Reactive Routing Protocols in Wireless Ad Hoc Networks With Unreliable Links
Wireless ad hoc networks can experience significant performance degradation under fading channels. In this paper, the authors present a Robust Forwarding Extension (RFE) for reactive routing protocols in wireless ad hoc networks. RFE is designed to enhance existing reactive routing protocols to provide reliable and energy-efficient packet delivery against the unreliable wireless links. Specifically, they introduce a biased back-off scheme during the route discovery phase to find a robust virtual path, which can provide more cooperative forwarding opportunities. Along this virtual path, data packets are greedily progressed toward the destination through nodes cooperation.