Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas
In this paper, we propose new complex and real pair-wise detection for conventional differential space–time modulations based on quasi-orthogonal design with four transmit antennas for general QAM. Since the new complex and real pair-wise detections allow the independent joint ML detection of two co...
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MDPI AG
2021-07-01
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Series: | Electronics |
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Online Access: | https://www.mdpi.com/2079-9292/10/14/1675 |
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author | Hojun Kim Yulong Shang Seunghyeon Kim Taejin Jung |
author_facet | Hojun Kim Yulong Shang Seunghyeon Kim Taejin Jung |
author_sort | Hojun Kim |
collection | DOAJ |
description | In this paper, we propose new complex and real pair-wise detection for conventional differential space–time modulations based on quasi-orthogonal design with four transmit antennas for general QAM. Since the new complex and real pair-wise detections allow the independent joint ML detection of two complex and real symbol pairs, respectively, the decoding complexity is the same as or lower than conventional differential detections. Simulation results show that the proposed detections exhibit almost identical performance with an optimum maximum-likelihood receiver, as well as improved performance compared with conventional pair-wise detections, especially for higher modulation order. |
first_indexed | 2024-03-10T09:41:27Z |
format | Article |
id | doaj.art-be288c8b236a4c10a6dbeaca509161f7 |
institution | Directory Open Access Journal |
issn | 2079-9292 |
language | English |
last_indexed | 2024-03-10T09:41:27Z |
publishDate | 2021-07-01 |
publisher | MDPI AG |
record_format | Article |
series | Electronics |
spelling | doaj.art-be288c8b236a4c10a6dbeaca509161f72023-11-22T03:38:18ZengMDPI AGElectronics2079-92922021-07-011014167510.3390/electronics10141675Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit AntennasHojun Kim0Yulong Shang1Seunghyeon Kim2Taejin Jung3R&D Team, Networks Business, Samsung Electronics, Suwon 16677, KoreaSchool of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou 213000, ChinaDepartment of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, KoreaDepartment of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, KoreaIn this paper, we propose new complex and real pair-wise detection for conventional differential space–time modulations based on quasi-orthogonal design with four transmit antennas for general QAM. Since the new complex and real pair-wise detections allow the independent joint ML detection of two complex and real symbol pairs, respectively, the decoding complexity is the same as or lower than conventional differential detections. Simulation results show that the proposed detections exhibit almost identical performance with an optimum maximum-likelihood receiver, as well as improved performance compared with conventional pair-wise detections, especially for higher modulation order.https://www.mdpi.com/2079-9292/10/14/1675space time codesdifferential space time modulationdifferential detectionpair-wise detectionmaximum likelihood detection |
spellingShingle | Hojun Kim Yulong Shang Seunghyeon Kim Taejin Jung Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas Electronics space time codes differential space time modulation differential detection pair-wise detection maximum likelihood detection |
title | Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas |
title_full | Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas |
title_fullStr | Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas |
title_full_unstemmed | Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas |
title_short | Improved Pair-Wise Detections of Differential Quasi-Orthogonal Space-Time Modulation with Four Transmit Antennas |
title_sort | improved pair wise detections of differential quasi orthogonal space time modulation with four transmit antennas |
topic | space time codes differential space time modulation differential detection pair-wise detection maximum likelihood detection |
url | https://www.mdpi.com/2079-9292/10/14/1675 |
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