数据采集与处理2013，Vol.28Issue(3)：330-335,6.
有限反馈MIMO-OFDM系统公平性资源分配算法
Fair Resource Allocation Algorithm Based on Limited Feedback in MIMO-OFDM System
摘要
Abstract
Aiming at the high channel state information (CSI) feedback spending in resource allocation of multi-user multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system,a fair resource allocation algorithm is proposed based on limited feedback.The algorithm is to maximize the system throughput under the constraint of transmission total power,bit error rate (BER) and proportionality among user data rates.It separates the adjacent subcarriers into a group and feed partial group channel state information (CSI) back.The feed-backed CSI partial group can be used to estimate the others without CSI feedback,and then subcarrier groups,power and bits should be allocated.Simulation results show that the algorithm ensures users' proportion fairness and system throughput,and reduces system feedback cost,which makes a good tradeoff between performance and cost of feedback.关键词
正交频分复用/多输入多输出/有限反馈/比例公平/资源分配Key words
orthogonal frequency division multiplexing (OFDM)/multiple input multiple output (MIMO)/limited feedback/proportional fairness/resource allocation分类
信息技术与安全科学引用本文复制引用
杜崇,仵国锋,陈松,胡捍英..有限反馈MIMO-OFDM系统公平性资源分配算法[J].数据采集与处理,2013,28(3):330-335,6.基金项目
国家高技术研究发展计划("八六三"计划)重点(2009AA011504)资助项目 （"八六三"计划）
国家科技重大专项(2011ZX03003-003-02,2009ZX03003-008-02)资助项目. （2011ZX03003-003-02,2009ZX03003-008-02）
