Integrated Cooperative Approach for Packet Loss Reduction and Recovery in Cognitive Radio Ad-Hoc Network

Ensuring higher packet delivery is a challenge in Cognitive radio ad-hoc network (CRAN) due to augmentation of channel unavailability based routing disruptions along with movement triggered path failures. This work proposes a integrated solution combining stable routing path selection based on channel availability predictions, minimizing congestion through source rate control and adaptive caching based packet loss recovery. Channel availability prediction based route path reduces the probability of path failures during routing. Source rate control reduces the probability of packet failures arising from congestion. Adaptive caching based packet loss recovery, attempts to make best use of cache for retransmission with least hop length for packet retransmissions. This combined strategy is able to reduce the overall packet loss in CRAN and increase the packet reliability.