Research On Enhanced Multipath Routing Algorithm Based On Packet Loss Interception In MANET

Mobile Ad hoc Network(MANET)is a temporary network without a central server composed of several mobile terminals,which can move freely and cooperate with each other to transmit each other’s relay data packets.MANET supports efficient operation by integrating routing functions into the mobile host.There is no centralized server in MANET,so network mobile terminals are connected by radio link.It can autonomously and rapidly deploy independent communication networks or effectively extend the coverage of existing communication networks,which have a wide range of application prospects in the civilian and military fields.In MANET,the changes of network topology and wireless channel environment are dynamic and may change at any time.The mobility of nodes is the main reason for topology changes.When nodes move freely,the path of data transmission is often interrupted,resulting in routing errors.This requires a new route to be constructed again from the source location,reducing the reliability of the route.Frequent changes in network topology are difficult for network formation and maintenance.Due to the mobile property of nodes,the reliability of the transmission path becomes one of the main problems in MANET.Routing algorithm,as one of the important links in MANET network,has been one of the mainstream research directions in the field of communication network in the world for decades.This paper studies the characteristics of the shortest path routing algorithm.Aiming at its shortcomings such as low reliability and poor load balancing ability,the algorithm is improved and designed,and an Enhanced Multipath Routing Algorithm Based on Packet Loss Interception(EMRABPLI)is proposed.The proposed algorithm introduces the idea of multipath into the shortest path algorithm.By making adjacent nodes in the network exchange routing information with each other,each node participates in the decision-making of routing;and adds a packet loss listening mechanism to the algorithm,automatically switch to the alternate path according to the number of packets lost by the node.In addition,EMRABPLI supports the function of route redistribution.Finally,the performance of the proposed algorithm is verified by multi-scenario simulation experiments including heterogeneous network,and compared with the shortest path algorithm and AODV,the proposed algorithm achieves the effects of higher reliability,lower delay and wider application range.The performance of the proposed algorithm is verified by setting multi-scenario simulation experiments,and compared with the shortest path algorithm and AODV,the proposed algorithm achieves the effects of high reliability,low delay and wide application range.