Power control method based on normalized betting model in cognitive radio technology

Abstract

Disclosed is a power control method of a cognitive radio technique based on a normalized game model, in particular to an implementation scheme applying to a sending end power control of the cognitive radio technique. The cognitive radio adopting a software radio as an extended platform is a new intelligent wireless communication technique, and achieves a high reliability of the communication system and a high efficiency of the spectrum utilization through adjusting the transmission parameter in real time according to the perception of the wireless environment all around. The sending end power control of, the third part of the working process of the cognitive radio, is able to extend the working range of the system, improve the performance of the transceiver and rationalize the distribution of other resources. In a multi-user cognitive network, the sending end competes for the power resources in a distributed way while game theory is the most effective way to solve the problem. The method reduces the complexity of the system and shortens the processing delay due to a normalized utility function which simplifies the operation process in design.

Description

Technical field [0001] The invention relates to a realization scheme especially used for transmitting end power control in cognitive radio technology, and belongs to the field of communication technology. Background technique [0002] As we all know, the radio frequency spectrum is a precious natural resource, which is generally authorized for use by the government. The spectrum resource allocation method defined in the early days is static, and different communication systems can only work on authorized dedicated frequency bands. With the rapid development of wireless communication technology, more and more wireless devices are widely used, and spectrum resources are gradually becoming scarce, and thus become the most important non-renewable resource in modern society. In particular, in recent years, many users have begun to access the Internet through technologies such as wireless local area network (WLAN) and wireless personal area network (WPAN) working in unlicensed frequenc...

AI Technical Summary

Problems solved by technology

[0006] Technical problem: The purpose of the present invention is to provide a method for power control of cognitive radio transmitters based on game theory, which can solve the problem of power competition at the transmitters of multiple CR users and achieve a reasonable allocation of system resources, and, due to its The normalized utility function simplifies the calculation process in design, and achieves the purpose of reducing system complexity and shortening processing delay

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