Route optimizing device and method catering to perceive wireless mesh network

Abstract

The invention provides a route optimizing device and a method catering to perceive wireless mesh network and relates to a communication system. One router in the network is regarded as a central router, and other auxiliary routers are communicated with the central router. Resource distributors and business conveyors are arranged in the auxiliary routers. The resource distributors further comprise route request receivers, channel state receivers, cross-layer route optimizers and resource configuration transmitters. Business requesters further comprise business readers, business flow predictors, route request transmitters, vacant channel monitors and channel state transmitters. The business conveyors further comprise resource allocation receivers, resource allocation machines and the business conveyors. The route optimizing device and the method catering to perceive wireless mesh network introduce a flow anticipation mechanism in the route request, so that the length of the business flow which is waiting for transmitting in a waiting queue can be effectively reduced, time lag of data transmission is reduced, network performance is entirely enhanced, and real time requirements of the transmitting data are satisfied.

Description

technical field [0001] The invention relates to a communication system, in particular to a routing optimization device and method for a cognitive wireless Mesh network. Background technique [0002] Wireless Mesh Network (Wireless Mesh Network, WMN) is a new type of broadband wireless access network with self-organizing multi-hop characteristics. It fully combines the advantages of Wireless Local Area Network (Wireless LAN, WLAN) and Ad Hoc network technology. Network, improve network coverage, enhance network reliability, reduce initial investment and many other aspects have shown great advantages. The application of WMN overcomes some shortcomings of the existing communication system, and can provide an ideal solution for the "last mile" access problem, so as to achieve the "ubiquitous" communication. It is considered to be an important part of the next generation Internet. It is attracting extensive attention from academia and industry. [0003] As the number of users c...

AI Technical Summary

Problems solved by technology

However, due to the complexity of the cross-layer optimization problem, most of the existing solution mechanisms have problems such as long solution time and easy to fall into local optimum, and most of the existing models do not consider the dynamic characteristics of traffic and the dynamics of the channel in the cognitive radio environment. Changes in characteristics, resulting in bandwidth allocation that cannot match traffic changes well, resulting in an increase in service transmission delay and a decrease in bandwidth utilization

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