An Intrinsic Interference Mitigation Scheme for FBMC-QAM Systems

doi:10.1109/ACCESS.2019.2911541

機構典藏 > College of Engineering > Graduate Institute & Department of Electrical Engineering > Journal Article > Item 987654321/116400

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/116400

Title:	An Intrinsic Interference Mitigation Scheme for FBMC-QAM Systems
Other Titles:	濾波器組多載波系統之正交振幅調變（FBMC-QAM）內因性子載波干擾緩解演算法
Authors:	Kelvin Kuang-Chi Lee
Keywords:	Prototypes;Bit error rate;Interference;Frequency-domain analysis;Discrete Fourier transforms;5G mobile communication;Complexity theory
Date:	2019-04-29
Issue Date:	2019-04-30 12:10:13 (UTC+8)
Publisher:	IEEE
Abstract:	Quadrature amplitude modulation-based filter-bank multicarrier system (FBMC-QAM) is a promising new radio access technology for the upcoming 5G standalone standard (5G-NR SA). By way of highly localized prototype filters, FBMC-QAM system is able to achieve low out-of-band (OOB) radiation and high spectral efficiency without the cyclic prefix (CP), at the price of non-orthogonality between adjacent subcarriers, intrinsic interferences, and bit error rate (BER) degradation. As an attempt to mitigate these impairments, a precoding scheme is proposed in this paper, which aims to maximize signal-to-leakage-and-noise ratio (SLNR) while allowing pulse-shaping filters with superb spectral characteristics to be leveraged. To justify the efficacy, performance analysis is conducted for prototype filters such as square-root raised cosine (SRRC), isotropic orthogonal transform algorithm (IOTA), and Mirrabasi-Martin (same as suggested in the PHY-DYAS project) for both additive white Gaussian noise (AWGN) and time-dispersive channels. The computer simulation shows that SLNR-based FBMC-QAM system incurs low complexity overhead and is able to enhance BER performance effectively.
Relation:	IEEE Access 7, p.51907-51914
DOI:	10.1109/ACCESS.2019.2911541
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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