Research And Implementation Of Optimizing Multicast Transmission In WiFi Mesh Converged Network

In recent years,WiFi technology has been widely used in people's daily work and life because of its convenient use and fast transmission speed in wireless communication.WiFi Mesh network is a kind of wireless mesh network combined with WiFi technology.Compared with traditional WLAN networks,it has the advantages of wide coverage,convenient networking,and flexible structure.It is becoming a research focus in the current wireless communication field.Therefore,according to the practical application scenario,it is of great practical value to study the data transmission optimization in the WiFi Mesh network.Currently,WiFi Mesh networks can only use wireless nodes for data transmission,but wireless links are more vulnerable to interference and lower transmission bandwidth than wired links.At the same time,multicast transmission has a wide range of applications in everyday home life such as video streaming.However,the multicast data is transmitted in the form of broadcast by default on the WiFi Mesh network,which has the disadvantages of large transmission overhead and low transmission performance.Therefore,based on the shortcomings of the data transmission in the WiFi Mesh network,this paper proposes an innovative fusion of the WiFi Mesh network into the wired network solution,which will increase the transmission bandwidth of the network and effectively guarantee the stability of the transmission.At the same time,this dissertation also proposes an optimized transmission scheme for the multicast transmission in WiFi Mesh network,which can convert the multicast data into the unicast of the multicast group members,and improve the overall transmission performance of the network while reducing the transmission overhead.This paper first studies and proposes the seamless integration of wired network solutions in the existing WiFi Mesh network,and gives the overall design ideas and key technologies of the solution.At the same time,the Metric formula in wired links is optimized in the solution to improve route discovery.Load balancing between network nodes in the process improves network performance.In the following,this dissertation proposes the transmission optimization scheme of multicast to unicast in the WiFi Mesh network,aiming at the existing shortcomings of multicast transmission in the WiFi Mesh network,and gives the design ideas and key technologies of the scheme.At the same time,in the scheme,the zero-copy and elimination of duplicate message optimization strategies are proposed innovatively,and the selection strategy of the root node in a multiple-node network is also studied to improve the load balancing effect among multiple root nodes in the network.Finally,this paper implements and tests the research scheme.In the test,the correctness of the converged wired network solution and the multicast-to-unicast solution was verified,and the improvement effect of the proposed solution on transmission performance and transmission stability was demonstrated.