An improved routing protocol based on Gauss-Markov model in Ad Hoc networks utilizing prediction of link quality

Ample research has been conducted in routing protocols for Mobile Ad Hoc Networks while traditional protocols cannot satisfy the demand of highly-dynamic environment. Though nodes in highly-dynamic environment often have supersonic velocity, they mainly perform their task with the same mission and their velocity and direction are basically approximate. Hence, the feature makes it possible to forecast links´ quality. In this paper, Gauss-Markov mobility model (GM) was introduced in order to reduce the influence of random movement on simulation performance; meanwhile we have improved the routing protocol based on DSR by utilizing the idea of link´s lifetime. Although the improved protocol may increase the number of hops in data transmission, it makes the network more stable. Compared to the original DSR protocol based ‘minimum hops’, simulation results operated in Qualnet present us the superior performances of the improved protocol, especially in Packet Delivery Ratio, Received Throughput, Average End-to-end Delay and Average Jitter.