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首页> 外文期刊>電子情報通信学会技術研究報告. 通信方式. Communication Systems >ADAPTIVE RESOURCE ALLOCATION SCHEME IN MIMO-OFDMA SYSTEM FOR USER'S DIFFERENT DATA THROUGHPUT REQUIREMENTS BY APPLYING PROPORTIONAL DATA RATE FAIRNESS
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ADAPTIVE RESOURCE ALLOCATION SCHEME IN MIMO-OFDMA SYSTEM FOR USER'S DIFFERENT DATA THROUGHPUT REQUIREMENTS BY APPLYING PROPORTIONAL DATA RATE FAIRNESS

机译：应用比例数据速率公平性的MIMO-OFDMA系统中适应用户不同数据吞吐量需求的自适应资源分配方案

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摘要

In the conventional subcarrier and power allocation schemes in Multi-Input Multi-Output and Orthogonal Frequency Division Multiple Access (MIMO-OFDMA) systems, only equal fairness among users has been considered, and no scheme for proportional data rate fairness is considered. In this paper, subcarrier and power allocation criterion is proposed to maximize the total throughput under the constraints of total power and proportional data rate fairness among users. In the proposed scheme, subchannel allocation is firstly performed by using singular value decomposition (SVD) of channel matrix under the constraint of users' data throughput requirements, and then adaptive bit and power loading is applied. Simulation results show that total throughput is increased as well as each throughput is proportionally distributed among users in MIMO-OFDMA systems.
机译：在多输入多输出和正交频分多址（MIMO-OFDMA）系统中的常规子载波和功率分配方案中，仅考虑了用户之间的公平性，而没有考虑用于比例数据速率公平性的方案。本文提出了子载波和功率分配准则，以在用户总功率和比例数据速率公平性的约束下最大化总吞吐量。在该方案中，首先在用户数据吞吐率要求的约束下，利用信道矩阵的奇异值分解（SVD）进行子信道分配，然后进行自适应比特和功率负载。仿真结果表明，在MIMO-OFDMA系统中，总吞吐量增加了，并且每个吞吐量按比例分配在用户之间。

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