Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels

被引：1

作者：

Chiu, Hao-Tse ^{[1
]}

Saito, Shuhei ^{[1
]}

Suganuma, Hirofumi ^{[1
]}

Kuriyama, Keita ^{[2
]}

Tanaka, Kentaro ^{[2
]}

Hasegawa, Hitoshi ^{[2
]}

Miyagi, Toshifumi ^{[2
]}

Onizawa, Takeshi ^{[2
]}

Maehara, Fumiaki ^{[1
]}

机构：

[1] Waseda Univ, Grad Sch Fundamental Sci & Engn, Tokyo 1698555, Japan

[2] NTT Corp, NTT Access Network Serv Syst Labs, Yokosuka 2390847, Japan

来源：

IEEE ACCESS | 2023年 / 11卷

关键词：

Faster-than-nyquist (FTN) signaling; multiple-input multiple-output (MIMO); fixed-bit transmission; fixed utilized bandwidth; frequency domain equalization (FDE); FASTER;

D O I：

10.1109/ACCESS.2023.3306797

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we investigate the advantages of multiple-input multiple-output (MIMO) faster-than-Nyquist (FTN) signaling under a fixed utilized bandwidth and multipath fading channels. We present derivations of the input-output relationships for MIMO-FTN systems and decompose the MIMO transmission scheme into spatial and spectral precoding procedures. An approximated frequency-domain equalizer (FDE) is introduced at the receiver as an effective solution to decode the signals. The simulation results reveal that FTN signaling outperforms conventional Nyquist signaling under the fixed-bit transmission in terms of the bit error rate (BER) and throughput. It is shown that FTN signaling has the applicability of a lower-level modulation process, which might decrease the peak-to-average power ratio (PAPR), while there exists a tradeoff between PAPR and BER/throughput. Moreover, the advantages of the approximated FDE and FTN-SCFDE systems are confirmed in the MIMO configuration.

引用

页码：89383 / 89392

页数：10

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