Anti-jamming Reliable Routing Technology In Mobile Ad Hoc Network

With the fast development of wireless communication in these years, Ad Hocnetwork is now widely used in various fields such as military and post-disaster support.The nodes in Ad Hoc network have the mobility for the reason that the network doesnot have the fixed forwarding node, thus network topology changes constantly, and AdHoc network often works in a relatively poor environment. To ensure the accessibilityand reliability of communication, researches on reliable anti-jamming in Ad Hocrouting technology are increasingly important. This research mainly focused onanti-jamming of the network layer in Ad Hoc network. Based on traditional On-DemandDSR, new reliable anti-jamming MR-DSR routing technology and anti-jamming routingtechnique to enhance the whole system are also put forward in this paper.This work begins with an introduction of Ad Hoc network routing technology,consisting of Ad Hoc network routing research’s background, status quo anddevelopment tendency. It gives the importance and some schemes of anti-jamming onAd Hoc network, and then follows with structure of this thesis.In chapter II, categories of Ad Hoc network routing technology are presented indetail. It classifies and summarizes the existing routing technologies frommulti-perspective. Furthermore, typical Ad Hoc network routing technologies, such asAODV, DSR and OLSR, are stated. Through a comparison of those routingtechnologies, in this paper, DSR routing protocol is selected for subsequent research,because it has low routing overhead and less routing maintenance costs, and it could beadapted to the asymmetric path network. The final part presents several most typical AdHoc network anti-jamming technologies, including multipath transmission technology,network coding technology and cooperative relay technology.Based on DSR, chapter III expounds the design of a new anti-jamming reliablerouting, based on two routing criteria, for instance path reliability and path separatingdegree. The descriptions of this new MR-DSR routing criteria, routing protocoloperation process, and simulation experiment results are given. The results show that paths selected through MR-DSR routing protocol have higher reliability and are morelikely to resist jamming from outside.Based on MR-DSR, chapter IV describes the influence of this procedure by usingnetwork coding technology and cooperative relay routing enhancement technique, andfurthermore it reduces the frequent jamming from outside. When the path reliability wasdecreased, network coding timely could increase the packets of data redundancy, so asto improve the network’s anti-jamming ability. When the link had broken, the usage ofcooperative relay technology can widen the local bandwidth aiming at resistingjamming from outside. At last, simulation experiments prove that the two anti-jammingrouting enhancement techniques can effectively improve network reliability andthroughput, and reduce both rerouting frequency and time delay.This paper ends up with summary the whole research and suggestion for furtherfuture study.