A path selecting method of wireless mesh network

Abstract

The invention provides a path selecting method of the wireless mesh network. The nodes of the wireless mesh network get and store the path information of the wireless mesh network, the performance parameters of the corresponding path information and the estimated value of the path remained broadband. When the wireless mesh network initiates a business request, the nodes of the wireless mesh network call the path information, performance quality parameters and the estimated value of the remained broadband, and take the factors of real-time performance, bandwidth and transmission quality into comprehensive consideration according to the business quality to select the matched paths; providing different paths to the services with different requirements is realized through establishing a dynamic path buffering table to reduce path selecting time; furthermore, the network bandwidth is effectively utilized and the rapid retransmission of the wireless mesh network is realized.

Description

technical field [0001] The invention relates to a wireless mesh network, in particular to a path selection method of the wireless mesh network. Background technique [0002] Wireless mesh network (WMN, wireless mesh network) is a new type of broadband wireless network, which is different from traditional wireless networks. Inheriting the characteristics of the Ad hoc network itself, such as self-configuration, self-organization and self-management, it also has its inherent particularity, such as different types of network nodes have different mobility, and MR generally has a small Mobility, while MC can be a fixed node or a mobile node, which can weaken the impact of mobility when designing WMN routing; the main business of WMN nodes is the business from the Internet gateway, while the main business of Ad hoc networks is any pair of nodes between business flows. [0003] Due to the particularity of WMN, its particularity can be fully utilized when designing WMN routing pro...

AI Technical Summary

Problems solved by technology

Considering the impact of interference conflicts, communication distance and other factors, the path with the smallest number of hops may have poor performance such as throughput and bit error rate, and cannot be the optimal choice; in addition, nodes share resources through routing protocols, so WMN must meet the load Balance this requirement; when the route is interrupted, the route reconstruction should be completed as soon as possible to avoid service interruption; in addition, it will take a long time to establish a path in a large-scale network, which will increase the end-to-end delay. Once the path is established, Due to the change of the path, it needs to consume a lot of network resources for route reconstruction

[0004] It can be seen from the above that the quality of routing directly affects the performance of the network. In the prior art, there are various wireless routing protocols, and the routing with the best performance can be selected, such as determining the best routing according to the measured network performance. However, , the methods of discovering topology and finding routes in the prior art are still relatively simple, and cannot well combine business content and consider minimizing network resource consumption

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