A Low-Complexity Resource Allocation Scheme Using AMC for MIMO-OFDMA Systems

被引：0

作者：

Ben Hassen, Wafa ^{[1
]}

Afif, Meriem ^{[1
]}

Tabbane, Sami ^{[1
]}

机构：

[1] Carthage Univ, Mediatron Lab, Higher Sch Commun Tunis Supcom, Tunis, Tunisia

来源：

2014 21ST INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS (ICT) | 2014年

关键词：

LTE; MIMO; OFDMA; ESINR; AMC;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this paper, we address the resource allocation problem in down-link transmission of MIMO-OFDMA systems. We aim at maximizing the total system capacity. The optimization problem is divided into sub-optimal ones in order to reduce the computing complexity. Firstly, a Physical Resource Block (PRB) allocation algorithm based on a recursive function is developed. Secondly, a power allocation procedure is performed. As all PRBs allocated to the same user must use the same Modulation and Coding Scheme (MCS) according to LTE specification, the power optimization sub-problem includes three steps: power allocation among PRBs (PAaPRB), power allocation among antennas (PAaA) and power allocation among users (PAaU). Simulation results show that our proposed method maximizes the total system capacity with a low-complexity in the case of loaded systems compared to well-known algorithms.

引用

页码：160 / 165

页数：6

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