Quality of experience index-based power distribution method and system

A technology of perceived quality and user, applied in the field of communication systems

Inactive Publication Date: 2011-06-01
THE PLA INFORMATION ENG UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for power alloca

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  • Quality of experience index-based power distribution method and system
  • Quality of experience index-based power distribution method and system
  • Quality of experience index-based power distribution method and system

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] The present invention introduces the QOE (Quality of Experience) index into the resource allocation method of the multiple-input multiple-output (MIMO) system, constructs a utility function according to the user's quality of experience, and proposes a system average QOE based on the utility function Maximization as the goal and a power allocation method that takes into account user fairness. In this method, the system power distribution is adjusted by the method of derivative iterative approximation, so as to obtain the power distribution scheme close to the maximum system average QOE.

[0041]The method of the invention jointly considers the user's QOE and the communication link quality, uses a flexible power allocation mode, and while obtaining the maximum system average QOE, fully utilizes the system's power resources and improves the...

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Abstract

The invention provides a quality of experience (QOE) index-based power distribution method and a quality index of user experience-based power distribution system. The method comprises that: a network performs power pre-distribution on all channels of a user according to a service rate required by the user; the network calculates a QOE index of the user in the channel according to the pre-distributed power of the channel, and obtains the regulated distributed power of the user in the channel after calculating a step value of the distributed power of the user in the channel according to the QOEindex; and the network distributes the regulated distributed power of the user in the channel to the channel of the user if the step value of the distributed power of the user in the channel is judged to be more than 0 and less than or equal to a preset threshold and the service rate obtained by the user corresponding to the regulated distributed power of the user in the channel is judged to be less than or equal to the service rate required by the user. The method and the system solve the problem of QOE index-based power distribution.

Description

technical field [0001] The present invention relates to a communication system, in particular to a method and system for power allocation based on user experience quality indicators. Background technique [0002] With the rapid development of the mobile communication industry, the contradiction between the ever-increasing service demands of users and the limited resources of the mobile communication system is becoming more and more obvious. According to the reference information of resource allocation and the final goal division, the resource allocation methods of mobile communication system can be mainly divided into two categories: intelligent scheduling and blind scheduling. Intelligent scheduling requires users to provide channel state information (CSI, Channel State Information), and its typical representative methods are: maximum carrier-to-interference ratio method (MAX-CI), proportional fair method (PF), fast fair throughput method (FFTH), weighted Fair Queue (WFQ),...

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Application Information

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IPC IPC(8): H04W72/08
Inventor 仵国锋陈松任修坤王大鸣崔维嘉
Owner THE PLA INFORMATION ENG UNIV
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