Downlink beamforming and resource allocation in multicell MISO-OFDMA systems

被引：3
|
作者：
Hassan, Naveed U. L. [1 ]
Assaad, Mohamad [2 ]
机构：
[1] LUMS, SSE, Dept Elect Engn, Lahore, Pakistan
[2] Supelec, Dept Telecommun, Gif Sur Yvette, France
来源：
TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES | 2014年 / 25卷 / 02期
关键词：
MIMO-OFDMA system; beamforming; resource optimisation; POWER-CONTROL; ALGORITHMS; CAPACITY;
D O I：
10.1002/ett.2554
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
We study the downlink beamforming (DLBF) and resource optimisation problem in multicell multi-input single-output orthogonal frequency division multiple access (MISO-OFDMA) systems. This is a mixed combinatorial, nonlinear and nonconvex optimisation problem. By using uplink downlink duality, we propose an efficient suboptimal algorithm. This algorithm provides beamformers and allocates subcarriers and power to different users in the network with minimum message passing between the transmitting base stations. DLBF and resource optimisation algorithm for single-cell MISO-OFDMA systems can be obtained as a special case of the multicell algorithm. Simulation results reveal the performance gains provided by the proposed algorithm. Copyright (c) 2012 John Wiley & Sons, Ltd.
引用
收藏
页码：173 / 182
页数：10
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