Multicast routing method for Ad Hoc network

Abstract

The present invention relates to a multicast routing method of mobile Ad Hoc network, which comprises the steps of information broadcasting of multicast routing, establishing the multicast routing, restoring multicast routing, combining the multicast routing and destroying the multicast routing. In the multicast group, the multicast sharing tree is real-time maintained through multicast group leader, and the nodes in the scene periodically update routing list through Group Hello information. If one node wishes to join the multicast group, a shortest path to the multicast group leader in the broadcast information is selected for transmitting joining request. After the node joints the multicast group, the information is transmitted, forwarded and received on the shortest path in the multicast group. The novel multicast routing method of mobile Ad Hoc network according to the invention has the advantages of easy realization, reduction of information transmission in multicast establishment, reduction of information for maintaining the multicast path, and increased accuracy for transmitting the data package.

Description

A Multicast Routing Method for Mobile AdHoc Networks technical field The invention relates to a mobile AdHoc network multicast routing method (MAODV-MM routing method), which belongs to the field of wireless communication. Background technique The main purpose of the MAODV-MM routing method is to provide an easy-to-implement multicast routing algorithm solution for mobile AdHoc network products. Therefore, the improvement of the routing algorithm is proposed on the basis of the existing physical layer and MAC layer basic architecture. Different from some existing high-performance routing algorithm design ideas realized by changing the specific parameters of the physical layer and MAC layer, it needs to consider more the complexity of the routing algorithm, optimize the packet delivery rate and network energy consumption of the network layer and other performance. A network-based multicast routing protocol transmits data packets through a shared network that contains all ...

AI Technical Summary

Problems solved by technology

When the MAODV multicast routing protocol establishes a multicast tree, if a node in the network wants to join a multicast group, it will randomly send a JOINRREQ join message by flooding, requesting to join the multicast group; When there are too many nodes in the multicast group, the request to join information will increase instantly, and the wireless ad hoc network is a channel-limited system, and too much routing control information will cause network congestion and greatly reduce the channel utilization of the network

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