一种基于QoE效用函数的资源分配算法
针对多用户MIMO—OFDM系统,立足业务体验方,给出了一种最大化用户QoE的资源分配算法。通过设计QoE效用函数,将用户QoE与系统QoS参数关联起来,在发送功率和目标误码率的约束条件下,以最大化用户平均QoE为目标,通过QoE效用函数获取用户当前时刻QoE增量,据此确定用户时频资源分配优先级,进而进行注水功率分配。仿真结果表明,该算法能够充分利用系统资源,有效提高用户平均QoE。...
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Published in | 电子技术应用 Vol. 38; no. 12; pp. 94 - 97 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
信息工程大学 信息工程学院,河南 郑州,450002
2012
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Subjects | |
Online Access | Get full text |
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Summary: | 针对多用户MIMO—OFDM系统,立足业务体验方,给出了一种最大化用户QoE的资源分配算法。通过设计QoE效用函数,将用户QoE与系统QoS参数关联起来,在发送功率和目标误码率的约束条件下,以最大化用户平均QoE为目标,通过QoE效用函数获取用户当前时刻QoE增量,据此确定用户时频资源分配优先级,进而进行注水功率分配。仿真结果表明,该算法能够充分利用系统资源,有效提高用户平均QoE。 |
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Bibliography: | For multi-user MIMO-OFDM system, based on the side of service experience, a resource allocation arithmetic aiming at maximizing users' QoE is proposed. Through the design of the QoE utility function, users' QoE and QoS parameters are associated. The arithmetic, in the transmit power and target BER constraints, in order to maximize the average of users' QoE, obtains users' QoE incremental calculated by QoE utility function, by which determine the user priority of time-frequency allocation, and then implement water-filling power allocation. The simulation results show that the algorithm can make full use of system resources and effectively improve the average of users' QoE. MIMO ; OFDM ; quality of experience ; resource allocation Du Chong, Chen Song, Hu Hanying, Wu Guofeng (Institute of Information Engineering, PLA Information Engineering University, Zhengzhou 450002, China) 11-2305/TN |
ISSN: | 0258-7998 |