QAM signal transmission based on matrix model in filter-bank multicarrier systems

Li, Fei, Zheng, Kan, Zhao, Hui, and Xiang, Wei (2018) QAM signal transmission based on matrix model in filter-bank multicarrier systems. IEEE Access, 6. pp. 63987-63998.

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Abstract

In the upcoming fifth-generation (5G) mobile network, the filter bank multi-carrier (FBMC) technique provides an alternative to cyclic prefix-orthogonal frequency-division multiplexing (CP-OFDM). The most fascinating features of FBMC are high spectral efficiency and extremely low out-of-band emissions by removing the CP and using well-localized pulse shapes. FBMC exhibits intrinsic inter-carrier/intersymbol interference which can be mitigated by techniques such as offset quadrature amplitude modulation (OQAM). However, OQAM does not work well in multi-path fading channels. Consequently, conventional channel estimation methods and MIMO based upon space-time/frequency block coding are not straightforward applicable to the FBMC system. This paper presents two new transceiver architectures for the FBMC/QAM matrix. First of all, the matrix models of the FBMC/QAM scheme are derived. Second, based on the matrix models, three receiver methods are then described. Then, the scheme of combining FBMC/QAM with channel estimation and MIMO is proposed. Finally, two simplified receiver algorithms based on the matrix models are proposed. Simulation results indicate that the proposed transceivers of the FBMC/QAM matrix scheme can directly combine with the channel estimation and MIMO techniques used in conventional OFDM systems. Furthermore, the proposed transceivers of the FBMC/QAM matrix scheme have almost the same BER performance compared with the conventional OFDM systems.

Item ID: 56656
Item Type: Article (Research - C1)
ISSN: 2169-3536
Keywords: multicarrier, FBMC, QAM, channel estimation, MIMO, complexity
Copyright Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Funders: National Natural Science Foundation of China (NSFC)
Projects and Grants: NSFC grant 61628102, NSFC grant 61271183
Date Deposited: 19 Dec 2018 07:39
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100510 Wireless Communications @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890103 Mobile Data Networks and Services @ 100%
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