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"Near-perfect" finite-cardinality generalized space-time shift keying

"Near-perfect" finite-cardinality generalized space-time shift keying
"Near-perfect" finite-cardinality generalized space-time shift keying
Two decades of full-diversity high-rate MIMO research has created perfect Space-Time Block Codes (STBCs) including the Golden code. However, the major stumbling block of their wide-spread employment is their limited energy-efficiency. On one hand, the superposition of their signals results in a high Peak-to-Average Power Ratio (PAPR). On the other hand, the total number of equivalent Inter-Antenna Interference (IAI) contributions that the receiver has to deal with is increased to $\text{IAI}=M^2$ upon using $M$ Transmit Antennas (TAs), which is a substantial extra price compared to the $\text{IAI}=M$ of V-BLAST. Against this background, we propose a new family of Finite-Cardinality Generalized Space-Time Shift Keying (FC-GSTSK). More explicitly, the proposed FC-GSTSK is capable of outperforming both V-BLAST and STBC, which is the ultimate objective of full-diversity high-rate MIMO design. Furthermore, following the index modulation philosophy, the proposed FC-GSTSK replaces the signal-additions by the data-carrying signal-selection process. As a benefit, the FC-GSTSK substantially reduces the PAPR of signal transmission. As a further advantage, the equivalent IAI imposed on signal detection is reduced back to the same level as that of V-BLAST. Moreover, the proposed FC-GSTSK is even capable of consistently outperforming the perfect STBCs in terms of its Peak Signal to Noise-power Ratio (PSNR) that takes into account the power consumption at the transmitter. As a further advance, the reduced-RF-chain based version of FC-GSTSK is also capable of outperforming both Generalized Spatial Modulation (GSM) and Space-Time Block Coded Spatial Modulation (STBC-SM) without increasing the PAPR and the equivalent IAI.
0733-8716
2146-2164
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Zhang, Peichang
ec887077-dc96-4b72-8caa-719a5a1a9ba8
Mysore rajashekar, Rakshith
d2fbbb04-57c5-4165-908f-600fc1fbdeab
Ishikawa, Naoki
7330750b-e4bc-4f46-b500-e190264b2af6
Sugiura, Shinya
4c8665dd-1ad8-4dc0-9298-bf04eded3579
Wang, Zhaocheng
70339538-3970-4094-bcfc-1b5111dfd8b4
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Xu, Chao
5710a067-6320-4f5a-8689-7881f6c46252
Zhang, Peichang
ec887077-dc96-4b72-8caa-719a5a1a9ba8
Mysore rajashekar, Rakshith
d2fbbb04-57c5-4165-908f-600fc1fbdeab
Ishikawa, Naoki
7330750b-e4bc-4f46-b500-e190264b2af6
Sugiura, Shinya
4c8665dd-1ad8-4dc0-9298-bf04eded3579
Wang, Zhaocheng
70339538-3970-4094-bcfc-1b5111dfd8b4
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Xu, Chao, Zhang, Peichang, Mysore rajashekar, Rakshith, Ishikawa, Naoki, Sugiura, Shinya, Wang, Zhaocheng and Hanzo, Lajos (2019) "Near-perfect" finite-cardinality generalized space-time shift keying. IEEE Journal on Selected Areas in Communications, 37 (9), 2146-2164. (doi:10.1109/JSAC.2019.2929450).

Record type: Article

Abstract

Two decades of full-diversity high-rate MIMO research has created perfect Space-Time Block Codes (STBCs) including the Golden code. However, the major stumbling block of their wide-spread employment is their limited energy-efficiency. On one hand, the superposition of their signals results in a high Peak-to-Average Power Ratio (PAPR). On the other hand, the total number of equivalent Inter-Antenna Interference (IAI) contributions that the receiver has to deal with is increased to $\text{IAI}=M^2$ upon using $M$ Transmit Antennas (TAs), which is a substantial extra price compared to the $\text{IAI}=M$ of V-BLAST. Against this background, we propose a new family of Finite-Cardinality Generalized Space-Time Shift Keying (FC-GSTSK). More explicitly, the proposed FC-GSTSK is capable of outperforming both V-BLAST and STBC, which is the ultimate objective of full-diversity high-rate MIMO design. Furthermore, following the index modulation philosophy, the proposed FC-GSTSK replaces the signal-additions by the data-carrying signal-selection process. As a benefit, the FC-GSTSK substantially reduces the PAPR of signal transmission. As a further advantage, the equivalent IAI imposed on signal detection is reduced back to the same level as that of V-BLAST. Moreover, the proposed FC-GSTSK is even capable of consistently outperforming the perfect STBCs in terms of its Peak Signal to Noise-power Ratio (PSNR) that takes into account the power consumption at the transmitter. As a further advance, the reduced-RF-chain based version of FC-GSTSK is also capable of outperforming both Generalized Spatial Modulation (GSM) and Space-Time Block Coded Spatial Modulation (STBC-SM) without increasing the PAPR and the equivalent IAI.

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FC_GSTSK_Revision_two_col_v2 - Accepted Manuscript
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More information

Accepted/In Press date: 22 June 2019
e-pub ahead of print date: 17 July 2019
Published date: September 2019

Identifiers

Local EPrints ID: 431949
URI: http://eprints.soton.ac.uk/id/eprint/431949
ISSN: 0733-8716
PURE UUID: dba1635c-9db2-443d-9a9f-c7a2b82c8377
ORCID for Chao Xu: ORCID iD orcid.org/0000-0002-8423-0342
ORCID for Rakshith Mysore rajashekar: ORCID iD orcid.org/0000-0002-7688-7539
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 24 Jun 2019 16:30
Last modified: 18 Mar 2024 03:17

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Contributors

Author: Chao Xu ORCID iD
Author: Peichang Zhang
Author: Rakshith Mysore rajashekar ORCID iD
Author: Naoki Ishikawa
Author: Shinya Sugiura
Author: Zhaocheng Wang
Author: Lajos Hanzo ORCID iD

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