Reliable Data Communication Research Of Wireless Mesh Network Based On P2P

WMN is widely concerned and studied because of its advanced theories of data transfer in the filed, besides, it needs both sides of the communication interconnecting with each other anytime and anywhere, which is based on its characteristics of high rate, high power capacity and easy organization. However, its deficiency, for instance, wireless link is easy to become invalid, or inefficient searching between nodes, can also greatly influence the reliability and real-time capabilities of data transfer. Therefore, to design high effective routing protocol is great significant for improving the performance of WMN.This text will analyze and study the present reliable query strategy and put up with a new one. It takes transmission means of m-path as starting point, calculate all the path availabilities from client nodes to network backbone, choose non-correlative paths in multiple links to combine, and take the most reliable one as query set. Among the selected query sets,set up corresponding using priority by comparing different metric indexes in transmission path, assign corresponding quantities of transmission data by the time delay of each transmission path, both of which are to realize the highly successful rate of transmission between communication nodes.Meanwhile, this text will use Chord protocol of P2 P to reflect WMN effectively and put up with a reliable transmission approach that is based on WMN of Chord. Moreover, aiming at some deficiency of traditional Chord protocol, The approach will improve it as follows: 1)Introduce region list and save the routing information of adjacent node in actual network to avoid routing problems. 2) Reflect the nodes in network layer by layer, and give them different transmission tasks to reduce blocking rate. 3) Remove node redundancy routing and change the single routing means of node to realize two-way searching of nodes in Chord.During the searching course, combine this approach with reliable searching strategy to improve successful rate of transmission under the circumstances of invalid wireless link.It shows that the project, which is by simulating the designed reliable data of communication, can better deal with the case of invalid wireless link and effectively improve the reliability and transmission rate of node communication.