Lagrange Multiplier Based Fair Resource Allocation for MIMO-OFDMA systems

被引：0
|
作者：
Ni, Dou [1 ]
Chen, Fangjiong [1 ]
Ji, Cunmei [1 ]
机构：
[1] S China Univ Technol, Sch Elect & Informat, Guangzhou, Guangdong, Peoples R China
来源：
NSWCTC 2009: INTERNATIONAL CONFERENCE ON NETWORKS SECURITY, WIRELESS COMMUNICATIONS AND TRUSTED COMPUTING, VOL 1, PROCEEDINGS | 2009年
关键词：
MIMO-OFDMA; Resource Allocation; Lagrange Multiplier; SUBCARRIER;
D O I：
10.1109/NSWCTC.2009.146
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose a subcarrier and power allocation algorithm for Multiple-Input-Multiple-Output Orthogonal-Frequency-Division-Multiple-Access (MIMO-OFD MA) systems with channel state information available at the transmitter. Fairness constraint is applied to limit the maximum and minimum number of subcarriers for all users. A Lagrange multiplier method is applied to solve the constrained optimization problem. Solving this optimization problem require multi-dimensional searching. A modified searching method is proposed to improve the convergence speed.
引用
收藏
页码：218 / 221
页数：4
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