基于比例公平原则的多用户MIMO-OFDM系统资源分配  

Resource Allocation for Multiuser MIMO-OFDM System Based on Proportional Fairness

作　　者：曹欢[1] 张静[1] 董建萍[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234

出　　处：《电视技术》2011年第9期62-65,共4页Video Engineering

基　　金：上海市教育委员会项目(CL95016)

摘　　要：提出了一种基于比例公平原则提高MIMO-OFDM系统吞吐量的子载波和功率分配算法。它在总功率和误比特率的约束下,以获取最大系统吞吐量为目标,同时为兼顾用户间资源享用的公平性,根据用户速率成比例推导出了子载波分配限制准则。仿真结果表明,本算法不仅可满足不同用户的速率要求,而且平衡了容量最大化和用户间公平性的矛盾,同时计算复杂度较低。A subcarrier and power allocation algorithm based on proportional fairness is proposed to achieve high total transmission rate in multiuser MIMO-OFDM systems. Subject to constraints on total power bit error rate the algorithm can maximize overall data throughput while guaranteeing the proportional fairness among users and the criteria of subcarrier allocation is derived based on each user rate proportionality constraints. The simulation results show that the algorithm can satisfy differently required data rate and offer balance and tradeoff between maximizing capacity and fairness among users with less computation.

关 键 词：多输入多输出 正交频分复用 资源分配 吞吐量 比例公平 

分 类 号：TN929.5[电子电信—通信与信息系统]