The Analysis And Research Of AOMDV Protocol For Multipath Wireless Mesh Networks

With the advancement of society,wireless network technology has become a hot research topic,and wireless Mesh network is a new wireless networking technology that is recognized as a promising application in next-generation wireless networks.Wireless Mesh networks are known for solving the "last mile" problem.They are characterized by high robustness and strong self-healing,but almost all network protocols do not take into account the energy supply of nodes in wireless networks.And the buffer load of the node is too high during the sending of the data packet.This has greatly restricted the development of wireless Mesh networks in practical applications.In response to this problem,this paper proposes a consumption-based routing protocol based on load balancing.The energy model and the queue model are introduced,and the pathfinding algorithm is improved on the basis of the dual model to maximize the network quality of the wireless mesh network.The higher usage rate in wireless Mesh networks is the AOMDV protocol,which is a typical representative of multipath routing protocols.It is characterized by finding multiple paths from the source node to the destination node in a single pathfinding process without additional overhead.In this paper,the AOMDV protocol is used as the research object,and the algorithm of AOMDV multi-path routing protocol is improved to improve the network quality.First,the energy model is turned on in the AOMDV multipath routing protocol.The energy model is not automatically introduced and the relevant parameters must be manually configured.In this way,the node obtains the real-time residual energy of the current node every time the data packet is sent and received for subsequent judgment.Second,the length of the queue buffer is obtained in the AOMDV multipath routing protocol.That is,the load status.Because the buffer queue length of the node is limited,the data packet exceeding the receiving threshold will be discarded.This paper adopts a pre-judgment mechanism for the Drop-Tail queue model of the AOMDV multi-path routing protocol,and senses the current load status of the node in advance to determine the current node.Whether it is capable of participating in the transmission of data packets,and further improving the network quality by sensing load conditions in advance.Thirdly,in the AOMDV multi-path routing protocol,the energy model is integrated with the queue model,and the remaining energy state and the queue load state of the node before receiving the data packet are used as criteria to determine whether the current node has the ability to participate in the data packet transmission.And use it to change the forwarding delay of the corresponding packet.Finally,this paper modifies the NS2 network simulator through comparative experiment of AODV single path protocol and AOMDV multipath protocol,initial AOMDV protocol and energy model based AOMDV protocol,initial AOMDV protocol and queue model based AOMDV protocol,based on energy model and based on The load-balanced consumption AOMDV protocol,the queue-based model and the load-balance-based consumable AOMDV protocol are compared to analyze the network performance.It can be seen from the experimental data that the load-balance-based consumable AOMDV protocol performs best,and the AOMDV multipath The routing protocol is superior to the AODV single path routing protocol.