Research and improvement of 5G wireless heterogeneous network routing protocol in smart grid application scenarios

Ad hoc has the characteristics of multi hop routing, decentralized control and so on, and has strong self-organization. It can effectively combine with 5G smart grid to realize flexible deployment and coverage. AODV routing protocol is widely used in AODV network, but because it is based on the shortest path algorithm, with the increase of network load, it will lead to network congestion and performance degradation. In order to solve the above problems, this paper fully considers the impact of link quality and network load on mobile ad hoc networks, and designs a routing protocol RC-AODV based on link congestion handling. The algorithm calculates the load of the node as the measure of the congestion of the node, establishes the backup route in the process of route discovery, and takes the congestion of the node as one of the criteria to establish the route. At the same time, in the process of data packet transmission, by judging the congestion of nodes, avoiding the congestion nodes, reducing the packet loss of the network, to a certain extent, it can alleviate the congestion of the network and improve the performance of the network. Finally, the NS-2 simulation platform is used to analyze the impact of node residence time and maximum mobile speed on the performance of routing protocol. By selecting the change of end-to-end average transmission delay, it shows that this scheme can effectively alleviate network congestion, reduce network delay and improve network performance.