A Network Organizationscheme And Hierarchical Routingprotocolbased On Special Information Transmission Platform

With the rapid development of mobile networks, Wireless Mesh Networks, due to its mesh topology and some technologies borrowed from mobile Network, is gradually playing a more important role in network organization. The application of wireless mesh network is quiteextensive,it is a dynamic self-organized, self-configurationnetwork, which can easily provide strong and reliable network coverage.The study in this paper is based on a special information transmission platform, the aim is to design a networking scheme which corresponds with this logical topology, and to research on a routing protocol which can improve its performance at its utmost. The target system, which is called information transmission platform, is a whole digital system that onenode is subordinate to another and they have close relationships with each other, it has a great demand onanti-destroying ability and tree topology. As to its strict requirements for invulnerability and tree-like topology, a hierarchical clustering way of network organization is put forward, and a routing protocol that combines table-driven routing protocol with on-demand routing protocol is adopted to improve the efficiency and whole networking functioning.The study in this paper uses NS2to verify the theory above. The Simulation results reveal that the packet loss rate,end-to-end delay and routing overhead of the target system are better than simple table-driven protocol. While the communication couples increase, the network traffic become worse, then this protocol can work better. Besides, the scheme solves the unlimited flooding disadvantage of on-demand protocol AODV and reduced the routing overhead to the largest extent. So it is worth studying in practical application.