Multi-path Multi-channel Routing Protocol For Mobile Ad Hoc Networks

Mobile Ad Hoc network is composed of many groups of multi hop routing and dynamic mobile nodes.Its main feature is that it can deploy quickly without supporting cable network,cable and device.Based on these features,the Mobile Ad Hoc network is accepted by everyone.Compared with the wireless communication network,Mobile Ad Hoc network has high practicability and flexibility.Because of these different characteristics,there are great differences in network routing protocols and other technologies.There are many places to be discussed in these differences,which provides a lot of research space and direction for the technical researchers to improve the Mobile Ad Hoc routing protocol.Routing protocol is an important part of Mobile Ad Hoc network,has long been the cutting-edge technology research direction in the field of communication at home and abroad,the characteristics and application of Mobile Ad Hoc network to start,through the comparison of multi path routing protocol,the main direction of channel allocation as routing protocol optimization.This paper describes the difference between single path and multi path routing based on the research status,advantages and disadvantages.Based on the AOMDV routing protocol,an improved routing protocol DMA-MRP is proposed.The main improvement is: in the routing search and selection,through the design of distributed channel allocation strategy is introduced,from three aspects of distribution,receiving channel transmission channel switching and dynamic interface optimization,shorten the multi path routing discovery time and improve network transmission efficiency.The simulation of DMA-MRP multipath routing protocol by network simulation software NS2,the node speed,medium speed and high speed mobile scenarios,respectively from the routing overhead,average end-to-end delay,packet delivery success ratio of three compared with the AOMDV routing protocol,the routing overhead in addition to higher than 3%,the average end-to-end delay 33%,reduce the packet delivery ratio is increased by 5%.Besides,in the medium speed mobile scenario,when the number of nodes increases gradually,the routing overhead ratio and the average end to end delay in two aspects are compared with the AOMDV routing protocol.The results show that the routing overhead ratio is 12%,and the average end-to-end delay is reduced by 27%.