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標題: A low-complexity turbo MUD for MU-MIMO SC-FDMA systems
作者: Yu-Kuan Chang
Fang-Biau Ueng
Ying-Mu Yang
摘要: In order to provide high-quality services, current communication systems require high data-transmission rate and good error performance. Single carrier-frequency division multiple access (SC-FDMA) has been adopted as the uplink transmission standard in fourth generation cellular network to enable the power efficiency transmission in mobile station. Multi-user multiple-input multiple-output (MU–MIMO) technologies are adopted in many standards to enhance the data rate and the link robustness. By combining MU–MIMO techniques with the SC-FDMA modulation scheme, MU–MIMO SC-FDMA systems can achieve high data rates over broadband wireless channels. For MU–MIMO SC-FDMA systems, possible detection techniques include zero-forcing detection, minimum mean squared error detection and maximum likelihood detection (MLD). Among these schemes, MLD is optimal, but its complexity grows exponentially with the number of symbols detected. As a result, there are demands for near MLD schemes that provide similar performance with less complexity. In this paper, we consider the MU–MIMO SC-FDMA communication and propose a low-complexity and high-performance turbo receiver for the systems. Some simulation examples for uplink scenario are given to demonstrate the effectiveness of the proposed scheme. Copyright © 2015 John Wiley & Sons, Ltd.
Appears in Collections:通訊工程研究所



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