Low complexity detection of spatial modulation aided OTFS in doubly-selective channels
Low complexity detection of spatial modulation aided OTFS in doubly-selective channels
A spatial modulation-aided orthogonal time frequency space (SM-OTFS) scheme is proposed for high-Doppler scenarios, which relies on a low-complexity distance-based detection algorithm. We first derive the delay-Doppler (DD) domain input-output relationship of our SM-OTFS system by exploiting an SM mapper, followed by characterizing the doublyselective channels considered. Then we propose a distance-based ordering subspace check detector (DOSCD) exploiting the a priori information of the transmit symbol vector. Moreover, we derive the discrete-input continuous-output memoryless channel (DCMC) capacity of the system. Finally, our simulation results demonstrate that the proposed SM-OTFS system outperforms the conventional single-input-multiple-output (SIMO)-OTFS system, and that the DOSCD conceived is capable of striking an attractive bit error ratio (BER) vs. complexity trade-off.
Complexity theory, Detectors, Modulation, Spatial modulation (SM), Symbols, Time-domain analysis, Transforms, Wireless communication, distance-based detection, doubly-selective channels, ordering-based detection, orthogonal time frequency space (OTFS)
13746-13751
Sui, Zeping
dec84f11-3353-4408-91ad-fbf8a347d2b4
Zhang, Hongming
f9be6479-a4af-4a51-a257-80f77f7fc91e
Xin, Yu
f72bf385-75bb-40e8-b5f4-f5053abcc10c
Bai, Tong
1e112b8e-9034-4a89-9bd5-c855561c5d77
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
1 October 2023
Sui, Zeping
dec84f11-3353-4408-91ad-fbf8a347d2b4
Zhang, Hongming
f9be6479-a4af-4a51-a257-80f77f7fc91e
Xin, Yu
f72bf385-75bb-40e8-b5f4-f5053abcc10c
Bai, Tong
1e112b8e-9034-4a89-9bd5-c855561c5d77
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Sui, Zeping, Zhang, Hongming, Xin, Yu, Bai, Tong, Yang, Lie-Liang and Hanzo, Lajos
(2023)
Low complexity detection of spatial modulation aided OTFS in doubly-selective channels.
IEEE Transactions on Vehicular Technology, 72 (10), .
(doi:10.1109/TVT.2023.3277788).
Abstract
A spatial modulation-aided orthogonal time frequency space (SM-OTFS) scheme is proposed for high-Doppler scenarios, which relies on a low-complexity distance-based detection algorithm. We first derive the delay-Doppler (DD) domain input-output relationship of our SM-OTFS system by exploiting an SM mapper, followed by characterizing the doublyselective channels considered. Then we propose a distance-based ordering subspace check detector (DOSCD) exploiting the a priori information of the transmit symbol vector. Moreover, we derive the discrete-input continuous-output memoryless channel (DCMC) capacity of the system. Finally, our simulation results demonstrate that the proposed SM-OTFS system outperforms the conventional single-input-multiple-output (SIMO)-OTFS system, and that the DOSCD conceived is capable of striking an attractive bit error ratio (BER) vs. complexity trade-off.
Text
clean-final (1)
- Accepted Manuscript
More information
Accepted/In Press date: 16 May 2023
e-pub ahead of print date: 18 May 2023
Published date: 1 October 2023
Additional Information:
Publisher Copyright:
© 1967-2012 IEEE.
Keywords:
Complexity theory, Detectors, Modulation, Spatial modulation (SM), Symbols, Time-domain analysis, Transforms, Wireless communication, distance-based detection, doubly-selective channels, ordering-based detection, orthogonal time frequency space (OTFS)
Identifiers
Local EPrints ID: 477611
URI: http://eprints.soton.ac.uk/id/eprint/477611
ISSN: 0018-9545
PURE UUID: 3f519ce9-a656-4b0a-8888-92abc48c1dcf
Catalogue record
Date deposited: 09 Jun 2023 16:50
Last modified: 18 Mar 2024 02:49
Export record
Altmetrics
Contributors
Author:
Zeping Sui
Author:
Hongming Zhang
Author:
Yu Xin
Author:
Tong Bai
Author:
Lie-Liang Yang
Author:
Lajos Hanzo
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics