Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels

Hao-Tse Chiu; Shuhei Saito; Hirofumi Suganuma; Keita Kuriyama; Kentaro Tanaka; Hitoshi Hasegawa; Toshifumi Miyagi; Takeshi Onizawa; Fumiaki Maehara

doi:10.1109/ACCESS.2023.3306797

IEEE Access (Jan 2023)

Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels

Hao-Tse Chiu,
Shuhei Saito,
Hirofumi Suganuma,
Keita Kuriyama,
Kentaro Tanaka,
Hitoshi Hasegawa,
Toshifumi Miyagi,
Takeshi Onizawa,
Fumiaki Maehara

Affiliations

Hao-Tse Chiu: ORCiD; Graduate School of Fundamental Science and Engineering, Waseda University, Tokyo, Japan
Shuhei Saito: Graduate School of Fundamental Science and Engineering, Waseda University, Tokyo, Japan
Hirofumi Suganuma: ORCiD; Graduate School of Fundamental Science and Engineering, Waseda University, Tokyo, Japan
Keita Kuriyama: NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka-shi, Japan
Kentaro Tanaka: NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka-shi, Japan
Hitoshi Hasegawa: NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka-shi, Japan
Toshifumi Miyagi: NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka-shi, Japan
Takeshi Onizawa: NTT Access Network Service Systems Laboratories, Nippon Telegraph and Telephone Corporation, Yokosuka-shi, Japan
Fumiaki Maehara: ORCiD; Graduate School of Fundamental Science and Engineering, Waseda University, Tokyo, Japan

DOI: https://doi.org/10.1109/ACCESS.2023.3306797
Journal volume & issue: Vol. 11
pp. 89383 – 89392

Abstract

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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.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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