Contract-based dynamic spectrum allocation method in radio network

A technology of dynamic frequency spectrum and allocation method, which is applied in the field of communication, and can solve problems such as different actual requirements of spectrum resources that have not been considered

Inactive Publication Date: 2012-08-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] None of the above prior art has considered the issue that different types of spectrum buyers have different actual requirements for spectrum resources

Method used

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  • Contract-based dynamic spectrum allocation method in radio network
  • Contract-based dynamic spectrum allocation method in radio network
  • Contract-based dynamic spectrum allocation method in radio network

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Embodiment Construction

[0061] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0062] like figure 1 As shown, this embodiment includes a channel owner (authorization system) and multiple heterogeneous cognitive radio links, and the system is completely distributed. The channel owner has a certain number of idle channels, and at any time, the authorized system may have a group of channels (ie idle frequency bands) with different qualities that can be shared by the cognitive radio system. At the same time, cognitive radio links lease the required channels as spectrum buyers according to their respective revenue functions. Based on interference c...

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Abstract

The invention relates to a contract-based dynamic spectrum allocation method in a radio network. The method comprises the steps that: an authorization system counters the number of self idle channels, and defines a self revenue function; a cognition wireless link defines a self revenue function and reports self classification information to the authorization system; the authorization system solves an optimal quality set according to the classification information of the cognition wireless link; the cognition wireless link determines a corresponding optimal price set according to the solved optimal quality set; and the authorization system declares an optimal contract to all the cognition wireless links, and every class of cognition wireless links selects corresponding transmission power specified by the optimal contract. According to the method, channels are firstly considered to be dealt with different qualities, and each price is defined to each quality, thus greatly improving the benefit of the authorization system; and the optimal contract can realize the approximately complete optimal spectrum efficiency, and effectively reduce the interference among the authorization system and the cognition wireless links.

Description

technical field [0001] The present invention relates to a method in the technical field of communication, in particular to a method for dynamic frequency spectrum allocation in a radio network, in particular to a contract-based dynamic frequency spectrum allocation method in a radio network. Background technique [0002] In recent years, with the rapid development of wireless communication technology, wireless spectrum has become an increasingly scarce resource. In order to solve this problem, scholars have proposed cognitive radio, which allows the secondary use of authorized spectrum to improve spectrum utilization. In a cognitive radio network, it is generally divided into primary users and secondary users. Among them, the primary user is an authorized user, and the secondary user is an unlicensed user, also known as a cognitive radio user. The primary user and the secondary user can share the authorized frequency band in an opportunistic or negotiated manner. In opport...

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Application Information

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IPC IPC(8): H04W16/10H04W72/08
Inventor 冯心欣高林孙高飞王新兵
Owner SHANGHAI JIAO TONG UNIV
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