Wireless Multi-path Routing Protocol For Mobile Ad Hoc Networks

Wireless Ad hoc networks are dynamic, multi-hop wireless networks with a significant advantage of no fixed network infrastructure. Without fixed infrastructure, Wireless mobile Ad hoc networks have the characteristics of the multi-hop and self-organization, and can be quickly deployed. These above features make the Ad hoc network be widely used.Although the wireless mobile Ad hoc networks have some kind of flexibility and practicality, compared with wired networks, Ad hoc networks with some features have a lot of differences in network routing protocols and some relevant technologies. Therefore, numerous researchers who design some good routing algorithms adapted to the Ad hoc network are necessary. Routing algorithms for wireless mobile Ad hoc network have always been hot research subject at home and abroad. The paper mainly focus on wireless mobile Ad hoc network routing protocols, and multi-path routing protocols are discussed which is my research direction.In the paper, I analyze the research situations of single-path and multi-path routing protocols and the strengths and weaknesses of these routing protocols, and improve a multi-path routing scheme based on DSR. Main innovations in optimal solution are followed. The node remaining energy and the path length factor are introduced in the process of path discovery. In the multi-path selection process, I take the improved path length factor into account in consideration of interference problems between the paths caused by broadcast and multicast in wireless mobile Ad hoc networks. Establish relevant factor mathematical model with interference perception theory. In multi-path selection process, elect the optimal backup transmission path by the relevant factor which is as the selection criteria. On the load balancing mechanism of multi-path, take traffic load distribution strategy for data load balance.In this paper, I use NS-2network simulation software for the simulation and implement the optimization program IAMSR (Interference Aware Multi-path Source Routing) multi-path routing algorithm simulation. Compared with traditional DSR, without increasing the routing overhead, end-to-end delay and delivery rate are improved.