Channel-centric system and method for realizing channel allocation by using channel-centric strategy

Abstract

The invention discloses a channel center system and a method for realizing channel allocation by using a channel center strategy. The system includes a management layer, a service layer, a channel center and a user group. The channel allocation method is: user classification; the channel center determines whether to allocate idle first-level user channels to unauthorized users according to the user level; the channel center stores and manages channel status information, plan user levels, manage channel borrowing behaviors of unauthorized users, and provide channel borrowing status query; use the Markov chain-based unit model to establish a multi-user and multi-channel cognitive radio network under the management of the channel center, through Genetic algorithm optimizes channel allocation. The present invention comprehensively manages channel information and user information based on the channel center, and can effectively prevent unauthorized users from opportunistically maliciously occupying channels in a multi-user and multi-channel cognitive radio network, and realize optimal allocation of channels on this basis , to maximize the total throughput.

Description

technical field [0001] The invention relates to the technical field of channel allocation in a cognitive radio network, in particular to a channel-centric system and a method for realizing reasonable allocation of channels in a multi-user multi-channel cognitive wireless network by using a channel-centric strategy. Background technique [0002] Spectrum resources are limited resources, but if a fixed spectrum access method is used to ensure that users use spectrum resources without interference, it will cause low efficiency of spectrum use. Cognitive radio is a technology used to solve this problem, using dynamic spectrum access to make full use of scarce spectrum resources. In October 2003, The United States Federal Communications Commission (FCC) accepted the proposal to collect opinions on the use and application development of cognitive radio systems, which triggered an upsurge of research on cognitive radio. At present, there have been many researches on aspects such a...

AI Technical Summary

Problems solved by technology

[0003] However, the introduction of dynamic spectrum access will lead to the question of whether the use of the channel is reasonable. For example, the malicious occupation of the channel by unauthorized users seriously affects the rights and interests of authorized users. Therefore, it is necessary to establish reasonable reward and punishment measures to regulate the use of channels, not just to pursue Maximization of user throughput, but to maximize throughput while reasonably satisfying the rights and interests of each user

Images