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Game type selection-based method for realizing dynamic spectrum allocation

A technology of dynamic spectrum and implementation method, which is applied in the direction of electrical components, wireless communication, network planning, etc., to achieve the effect of increasing returns and promoting spectrum utilization

Inactive Publication Date: 2011-04-20
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Most of the existing studies assume that the game type of dynamic spectrum allocation is constant. In fact, the game type of players in the spectrum allocation process will change with different bidding and demand situations.

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  • Game type selection-based method for realizing dynamic spectrum allocation
  • Game type selection-based method for realizing dynamic spectrum allocation
  • Game type selection-based method for realizing dynamic spectrum allocation

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] Consider the scenario of a single cognitive multi-access cell, such as figure 1 shown. Cognitive base stations have available spectrum obtained from secondary spectrum market transactions, and can flexibly reconfigure themselves to communicate with various types (such as WCDMA, CDMA2000EV-DO, etc.) of terminals. Different types of users (SUs) in a cell are eager to obtain spectrum from the base station for their own communication needs. Since CRBS spectrum opportunities are paid for, SUs must pay for their own spectrum usage. CRBS proposes a unit spectrum usage price w, and the SU that uses L unit spectrum needs to pay CRBS a fee wL.

[0031] Suppose the reward function of CRBS is U(w, L). obviously That is, U is an increasing function of quotation w and usage L. The payoff function of the SU is π(w, L)=R(L)-wL, where R(L) is the communication p...

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Abstract

The invention relates to a game type selection-based method for realizing dynamic spectrum allocation. With the development of the wireless communication technology, the traditional fixed spectrum allocation mode which leads to the waste of resources and has low spectrum utilization rate, has become the key factor of limiting the further development of the wireless communication network. The cognitive radio-based dynamic spectrum allocation technology is considered as a key technology for effectively solving the problem. In the method of the invention, by comparing the perfect dynamic game with the return of Nash Bargaining, the cognitive base station and the secondary user can separately choose an optimal strategy flexibly and fairly, namely an optimal spectrum quoted unit price and a spectrum purchase quantity. Meanwhile, in order to realize the selection operations of the both sides, a simple spectrum access procedure is designed to be compatible with the traditional mobile call access procedure. By adopting the invention, the returns of the cognitive base station and the secondary user can be effectively increased and the spectrum utilization can be promoted.

Description

technical field [0001] The invention belongs to a spectrum resource management design method of a cognitive network in the technical field of wireless communication, and in particular relates to a method for realizing dynamic spectrum allocation based on game type selection. Background technique [0002] As the demand for wireless communication services continues to grow, the current frequency bands suitable for wireless communication services have become very crowded. Regulators have realized that the traditional fixed spectrum method is very inefficient. Dynamic spectrum allocation based on cognitive radio allows secondary users (unlicensed users) to dynamically access the vacant frequency bands of primary users through negotiation and opportunism without interfering with the communication of primary users (licensed users), thereby improving spectrum utilization Rate. Therefore, dynamic spectrum allocation is considered to be one of the key technologies to alleviate wirel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10
Inventor 任品毅吴广恩王熠晨龚敏康尹稳山晏双成张世娇
Owner XI AN JIAOTONG UNIV
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