Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation
This paper proposes a novel reduced-complexity detection scheme for multiple-input multiple-output (MIMO)-assisted faster-than-Nyquist (FTN) signaling scheme in the frequency selective fading channels. By utilizing the channel’s circulant approximation, we exploit fast Fourier transform (...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Open Journal of the Communications Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/11083537/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849770384628383744 |
|---|---|
| author | Zekun Hong Shinya Sugiura |
| author_facet | Zekun Hong Shinya Sugiura |
| author_sort | Zekun Hong |
| collection | DOAJ |
| description | This paper proposes a novel reduced-complexity detection scheme for multiple-input multiple-output (MIMO)-assisted faster-than-Nyquist (FTN) signaling scheme in the frequency selective fading channels. By utilizing the channel’s circulant approximation, we exploit fast Fourier transform (FFT)-aided diagonalization and linear minimum mean square error (LMMSE) algorithm with a log-linear complexity. The proposed scheme achieves the same bit error rate (BER) performance as the conventional LMMSE detector while attaining a significantly lower complexity. Furthermore, we propose the amalgamation of MIMO-FTN signaling and orthogonal time frequency space (OTFS) modulation and conceive the low-complexity delay-Doppler-domain detection algorithm by exploiting the channel’s sparsity. Our performance results demonstrate that the proposed MIMO-FTN and MIMO-OTFS-FTN signaling schemes exhibit a higher information rate and than the conventional Nyquist-based counterparts using the same root-raised-cosine shaping filter. |
| format | Article |
| id | doaj-art-f5d96326d5d747db855e6c099baf6aa2 |
| institution | DOAJ |
| issn | 2644-125X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Communications Society |
| spelling | doaj-art-f5d96326d5d747db855e6c099baf6aa22025-08-20T03:03:02ZengIEEEIEEE Open Journal of the Communications Society2644-125X2025-01-0166126614110.1109/OJCOMS.2025.359015611083537Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS ModulationZekun Hong0https://orcid.org/0009-0002-2766-6569Shinya Sugiura1https://orcid.org/0000-0001-7736-8696The Institute of Industrial Science, The University of Tokyo, Tokyo, JapanThe Institute of Industrial Science, The University of Tokyo, Tokyo, JapanThis paper proposes a novel reduced-complexity detection scheme for multiple-input multiple-output (MIMO)-assisted faster-than-Nyquist (FTN) signaling scheme in the frequency selective fading channels. By utilizing the channel’s circulant approximation, we exploit fast Fourier transform (FFT)-aided diagonalization and linear minimum mean square error (LMMSE) algorithm with a log-linear complexity. The proposed scheme achieves the same bit error rate (BER) performance as the conventional LMMSE detector while attaining a significantly lower complexity. Furthermore, we propose the amalgamation of MIMO-FTN signaling and orthogonal time frequency space (OTFS) modulation and conceive the low-complexity delay-Doppler-domain detection algorithm by exploiting the channel’s sparsity. Our performance results demonstrate that the proposed MIMO-FTN and MIMO-OTFS-FTN signaling schemes exhibit a higher information rate and than the conventional Nyquist-based counterparts using the same root-raised-cosine shaping filter.https://ieeexplore.ieee.org/document/11083537/Fast Fourier transformdoubly selective fading channelfaster-than-Nyquist signalinginformation ratelinear minimum mean square errororthogonal time frequency space modulation |
| spellingShingle | Zekun Hong Shinya Sugiura Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation IEEE Open Journal of the Communications Society Fast Fourier transform doubly selective fading channel faster-than-Nyquist signaling information rate linear minimum mean square error orthogonal time frequency space modulation |
| title | Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation |
| title_full | Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation |
| title_fullStr | Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation |
| title_full_unstemmed | Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation |
| title_short | Reduced-Complexity MIMO Faster-Than-Nyquist Signaling Transceiver for OTFS Modulation |
| title_sort | reduced complexity mimo faster than nyquist signaling transceiver for otfs modulation |
| topic | Fast Fourier transform doubly selective fading channel faster-than-Nyquist signaling information rate linear minimum mean square error orthogonal time frequency space modulation |
| url | https://ieeexplore.ieee.org/document/11083537/ |
| work_keys_str_mv | AT zekunhong reducedcomplexitymimofasterthannyquistsignalingtransceiverforotfsmodulation AT shinyasugiura reducedcomplexitymimofasterthannyquistsignalingtransceiverforotfsmodulation |