Information channel center system and method for distributing information channels by using information channel center strategy

Abstract

The invention discloses an information channel center system and a method for distributing information channels by using an information channel center strategy. The information channel center system comprises a management layer, a service layer, an information channel center and a user group. The method for distributing the information channels comprises the following steps of classifying users; judging whether idle first-class user information channels are distributed to unlicensed users by using the information channel center according to the class of the users; storing and managing information channel state information by using the information channel center; planning the user class; managing information channel borrowing behaviors of the unlicensed users; providing query services on information channel borrowing conditions; establishing a multi-user and multi-information-channel cognitive radio network under management of the information channel center by using a unit type model based on a Markov chain; and optimizing information channel distribution by using a genetic algorithm. Information channel data and user information are comprehensively managed on the basis of the information channel center; a circumstance that the unlicensed users await an opportunity to occupy information channels viciously can be effectively prevented in the multi-user and multi-information-channel cognitive radio network; on that basis, the information channels are optimally distributed; and the total handling capacity can be maximized.

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...

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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

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