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An Efficient Receiver Structure for Faster-than-Nyquist Signal in MIMO System

Chang-Uk Baek, Gun-Woong Park, and Ji-Won Jung
Department of Radio Communication Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 606-791, Korea
Abstract—Next-generation wireless and/or satellite communications require high transmission efficiency and high reliability to provide various services with subscribers. To satisfied these requirements, incorporated MIMO (multiple-input-multiple-output) system with FTN (faster-than-Nyquist) techniques are considered in the paper. To improve performance and throughput, two kinds of MIMO turbo equalization techniques such as STTC (space-time trellis codes) and W-ZF(Weighted-Zero Forcing) are employed. They can yield significantly increased data rates and improved link reliability without additional bandwidth. In receiver side, BCJR algorithm is used for eliminating interferences induced by FTN transmission. Through the simulation results, based on MIMO-FTN transmission method, we compared the performance of layered space time codes with weighted zero forcing according to interference rate of FTN.

Index Terms—MIMO (Multiple-Input-Multiple-Output), FTN (Faster-than-Nyquist), W-ZF (Weighted-Zero Forcing), STTC (Space-time-trellis-code), BCJR, Turbo codes

Cite: Chang-Uk Baek, Gun-Woong Park, and Ji-Won Jung, An Efficient Receiver Structure for Faster-than-Nyquist Signal in MIMO System," Journal of Communications, vol. 12, no. 5, pp. 285-290, 2017. Doi: 10.12720/jcm.12.5.285-290
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