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Game theory-based radio resource optimization method in LTE-A relay system

A LTE-A, relay system technology, applied in wireless communication, network traffic/resource management, electrical components, etc.

Active Publication Date: 2013-10-23
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a wireless resource optimization method based on game theory in an LTE-A relay system, which solves the problem of finding a compromise between maximizing system throughput and ensuring absolute fairness for users when a relay is introduced in a cell. balance problem

Method used

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  • Game theory-based radio resource optimization method in LTE-A relay system
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  • Game theory-based radio resource optimization method in LTE-A relay system

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with accompanying drawing.

[0063] refer to figure 1 , in the cell of the present invention, the base station located in the center serves m users within the cell range, in order to expand the coverage of the cell and enhance the service quality of the edge cell users, n relay stations are placed in the cell to assist the base station or user data transfers. The range covered by the relay station is as follows figure 1 The range of the dotted line is called a micro cell. The type of relay can be divided into renewable type (DF) and non-renewable type (AF), all use renewable relay (DF) in the cellular relay network of the present invention, and relay station works in TDD transmission mode, promptly relay station cannot Receive and send data simultaneously.

[0064] Such as figure 1 As shown, in the LTE-A cellular relay system of the present invention, there are two types of users, one is directly ...

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Abstract

The invention discloses a game theory-based radio resource optimization method in an LTE-A relay system. The method mainly resolves the problem of compromise between system throughput and user fairness when relays are introduced to a cell. The method comprises the steps that SINR values of all users in the cell are calculated, whether the users are connected to a base station or the relays is determined according to the SINR values of the users, the reachable data rate and the minimum required rate of each user are calculated, the SINR dispersity of each micro cell is calculated, and the cell balance index meeting cell throughput maximization and user fairness optimization is obtained through the game theory. According to the game theory-based radio resource optimization method, the SINR dispersity of the users is used as the main parameter of fairness, and fairness of the users in the center of the cell and the users on the edge of the cell are improved obviously; the throughput, the fairness and the game theory are combined, so that system resources are used more effectively, the throughput is maximized under the condition that the fairness is guaranteed, and whole performance of the system is enhanced.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a wireless resource optimization method based on throughput and fairness game in an LTE-A system relay scenario. Background technique [0002] LTE (Long Term Evolution) evolved from 3G technology and is a quasi-4G mobile communication technology between 3G and 4G. And LTE-Advanced (LTE-A for short) was formally proposed in 3GPP LTE Rel.10, and takes the technical basis of LTE as the core to expand, enhance and improve. LTE-Advanced is backward compatible with various LTE system technologies and is a smooth evolution of LTE. It is committed to further improving system performance, enabling the system to obtain higher spectrum bandwidth and higher peak transmission rates, and further improving the performance of cell edge users , improve cell capacity and reduce system delay. LTE-A system indicators: The downlink peak rate is 1Gbps, and the spectral efficiency is incre...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/16
Inventor 曲桦赵季红杜锦涛
Owner XI AN JIAOTONG UNIV
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