Regularized MIMO Equalization for SC-FDMA Systems

被引:0
|
作者
F. S. Al-kamali
M. I. Dessouky
B. M. Sallam
F. Shawki
F. E. Abd El-Samie
机构
[1] Menoufia University,Department of Electronics and Electrical Communications, Faculty of Electronic Engineering
[2] King Abdullaziz University (KAU),Department of Electrical Engineering, Faculty of Engineering, Rabigh
关键词
MIMO SC-FDMA; Regularized equalization; ZF equalization;
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学科分类号
摘要
In this paper, we propose an efficient frequency domain equalization scheme for Multiple Input Multiple Output (MIMO) Single-Carrier Frequency-Division Multiple Access (SC-FDMA) systems. The proposed scheme avoids the complexity problem associated with the conventional MIMO Zero-Forcing (ZF) equalizer as well as the noise enhancement problem. The matrix inversion process associated with the proposed equalization scheme is performed in two steps to reduce complexity. A regularization term is added in the second step of the matrix inversion to avoid the noise enhancement. Simulation experiments on uplink MIMO SC-FDMA systems show that the proposed equalization scheme provides better performance than that of the ZF equalizer and its complexity is far less than that of the ZF equalizer.
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页码:1423 / 1441
页数:18
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