Network Coding as a Performance Booster for Concurrent Multi-Path Multi Transfer of Data in Multi-Hop Multi Wireless Networks
Abstract: The emerging use of multi-homed multi homed wireless devices along with simultaneous multi multipath data transfer offers tremendous potentials to improve the capacity of multi multihop wireless networks. The use of simultaneous data transfer over separate disjoint paths in multi-hop hop wireless networks to increase network capacity is a less explored subject, mainly because of the challenges it triggers for the reliable transport layer protocols. Reliable transport layer protocols generally use packet sequence number as a mean to ensure delivery. As such, the out out-of-order packet arrival in reliable transport layer protocols triggers receiver buffer blocking that causes throughput degradation and prevents the reliable multi multi-path transport layer protocol to realize its vast potential potential.. This paper focuses on integrating network coding with a reliable multi multi-path path transport layer protocol to resolve the receiver buffer blocking problem. We propose an adaptive network coding mechanism to desensitize the receiver against packet reordering and an consequently eliminate the receiver buffer blocking problem. Our state-of-the-art state network coding scheme uses a combination of Q-learning Q learning and logistic regression for rare data events to control the number of redundant packets based on the network dynamics.. We confirmed the veracity of our proposed scheme by a queuing theory based mathematical model. Moreover, the effectiveness of the proposed scheme is demonstrated through simulations and testbed experiments.