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Game-theory-based power distribution method in home base station system

A technology of home base station and game theory, applied in the field of communication, can solve problems such as interference and mutual interference

Active Publication Date: 2013-01-16
CERTUS NETWORK TECHNANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most home base stations are purchased by users, their mutual interference and interference with macro base stations have become one of the biggest problems in their development

Method used

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  • Game-theory-based power distribution method in home base station system
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  • Game-theory-based power distribution method in home base station system

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Experimental program
Comparison scheme
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Embodiment Construction

[0027] The specific embodiment of the present invention is as follows.

[0028] 1. Establishment of game model

[0029] The participants in the game of the present invention are home base stations, the behavior is to allocate transmission power, the utility is the income of each home base station, and the Nash equilibrium is the power allocation when the utility is maximum.

[0030] (1) Utility function

[0031] According to the system model described above, the spectrum sharing problem can be modeled as a Nash game model. N home users are game participants. benefit maximization.

[0032] The utility function of this paper is as follows:

[0033] u i = 1 n ( γ i - γ i tar ) + 1 n ( γ ...

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Abstract

The invention aims to provide a Nash-equilibrium-based power control method in a home base station system, constructs a game utility function which takes home base station transmitting power as a variant by aiming at the interference between home base stations and interference between the home base station and a macro user. According to the utility function, both signal-to-noise ratio requirements of the macro user and a home user and the influence of distribution of the home stations on interference are taken into consideration, penalty factors of the utility factor represent the signal-to-noise ratio requirements and the influence; and by the power distribution method, unfairness of non-cooperative game is compensated, and system performance is improved.

Description

technical field [0001] The invention relates to a scheme for realizing transmission power distribution of a home base station in a home base station system, and belongs to the technical field of communication. Background technique [0002] With the large-scale commercialization of the third generation (3G) cellular system, the fourth generation (4G) cellular system based on autonomous resource allocation is gradually entering people's field of vision. The 4G cellular system aims to achieve higher data throughput, lower latency, and lower construction and operation and maintenance costs. As the development of today's communication network architecture is close to the limit value in Shannon's theory, the way to improve network capacity and speed by changing the modulation method or upgrading technology is coming to an end. The future solution can only rely on reducing the physical size of the base station to obtain more Broad and denser coverage. The introduction of the home...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/34
Inventor 朱琦穆施瑶
Owner CERTUS NETWORK TECHNANJING
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