In this paper, we address the problem of detector design in severely frequency-selective channels for spatial multiplexing systems that adopt filter bank multicarrier based on offset quadrature amplitude modulation (FBMC/OQAM) as the communication waveforms. We consider decision feedback equalizers (DFEs) that use multiple feedback filters to jointly cancel the post-cursor components of inter-symbol interference, inter-antenna interference, and, in some configuration, inter-subchannel interference. By exploiting the special structures of the correlation matrix and the staggered property of the FBMC/OQAM signals, we obtain an efficient method of computing the DFE coefficients that requires a smaller number of multiplications than the linear equalizer (LE) and conventional DFE do. The simulation results show that the proposed detectors considerably outperform the LE and conventional DFE at moderate-to-high signal-to-noise ratios.
Kuei-Chiang LAI
National Cheng Kung University
Chi-Jen CHEN
the Realtek Semiconductor Corp.
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Kuei-Chiang LAI, Chi-Jen CHEN, "Detection Algorithms for FBMC/OQAM Spatial Multiplexing Systems" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 9, pp. 1172-1187, September 2021, doi: 10.1587/transcom.2020EBP3165.
Abstract: In this paper, we address the problem of detector design in severely frequency-selective channels for spatial multiplexing systems that adopt filter bank multicarrier based on offset quadrature amplitude modulation (FBMC/OQAM) as the communication waveforms. We consider decision feedback equalizers (DFEs) that use multiple feedback filters to jointly cancel the post-cursor components of inter-symbol interference, inter-antenna interference, and, in some configuration, inter-subchannel interference. By exploiting the special structures of the correlation matrix and the staggered property of the FBMC/OQAM signals, we obtain an efficient method of computing the DFE coefficients that requires a smaller number of multiplications than the linear equalizer (LE) and conventional DFE do. The simulation results show that the proposed detectors considerably outperform the LE and conventional DFE at moderate-to-high signal-to-noise ratios.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3165/_p
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@ARTICLE{e104-b_9_1172,
author={Kuei-Chiang LAI, Chi-Jen CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={Detection Algorithms for FBMC/OQAM Spatial Multiplexing Systems},
year={2021},
volume={E104-B},
number={9},
pages={1172-1187},
abstract={In this paper, we address the problem of detector design in severely frequency-selective channels for spatial multiplexing systems that adopt filter bank multicarrier based on offset quadrature amplitude modulation (FBMC/OQAM) as the communication waveforms. We consider decision feedback equalizers (DFEs) that use multiple feedback filters to jointly cancel the post-cursor components of inter-symbol interference, inter-antenna interference, and, in some configuration, inter-subchannel interference. By exploiting the special structures of the correlation matrix and the staggered property of the FBMC/OQAM signals, we obtain an efficient method of computing the DFE coefficients that requires a smaller number of multiplications than the linear equalizer (LE) and conventional DFE do. The simulation results show that the proposed detectors considerably outperform the LE and conventional DFE at moderate-to-high signal-to-noise ratios.},
keywords={},
doi={10.1587/transcom.2020EBP3165},
ISSN={1745-1345},
month={September},}
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TY - JOUR
TI - Detection Algorithms for FBMC/OQAM Spatial Multiplexing Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1172
EP - 1187
AU - Kuei-Chiang LAI
AU - Chi-Jen CHEN
PY - 2021
DO - 10.1587/transcom.2020EBP3165
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2021
AB - In this paper, we address the problem of detector design in severely frequency-selective channels for spatial multiplexing systems that adopt filter bank multicarrier based on offset quadrature amplitude modulation (FBMC/OQAM) as the communication waveforms. We consider decision feedback equalizers (DFEs) that use multiple feedback filters to jointly cancel the post-cursor components of inter-symbol interference, inter-antenna interference, and, in some configuration, inter-subchannel interference. By exploiting the special structures of the correlation matrix and the staggered property of the FBMC/OQAM signals, we obtain an efficient method of computing the DFE coefficients that requires a smaller number of multiplications than the linear equalizer (LE) and conventional DFE do. The simulation results show that the proposed detectors considerably outperform the LE and conventional DFE at moderate-to-high signal-to-noise ratios.
ER -