Beamforming Capacity Optimization for Rician MIMO Wireless Channels

被引：7
作者：
Kontaxis, D. E. [1 ]
Tsoulos, G. V. [2 ]
Karaboyas, S. [1 ]
机构：
[1] Univ Athens, Dept Informat & Telecomm, GR-10679 Athens, Greece
[2] Univ Peloponnese, Dept Telecomm Sci & Technol, Tripoli, Greece
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2012年 / 1卷 / 03期
关键词：
Capacity optimization; Beamforming; Rician fading;
D O I：
10.1109/WCL.2012.041012.110177
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The beamformer that maximizes the ergodic beamforming capacity under correlated (or uncorrelated with non-unit covariance matrix) Rician MISO channels can be calculated in the context of a simple one-dimensional optimization problem, according to the solution proposed in [1]. The present work extends this concept and provides a new simple and practically feasible solution for the corresponding Rician MIMO propagation channels. Simulation results demonstrate that: a. the optimum beamformer further improves capacity compared to the max SNR Beamformer, b. the proposed one-dimensional search method that is employed to solve the optimum beamforming problem has significantly lower computational complexity compared to currently used (multi-dimensional) algorithms.
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页码：257 / 260
页数：4
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