{"title":"A Novel FBMC/QAM Scheme to Eliminate the Error Floor in Multipath Channels","authors":"Yufeng Zhang, Xueqin Chen","doi":"10.1049/cmu2.70019","DOIUrl":null,"url":null,"abstract":"<p>To eliminate the error floor of filter bank multicarrier with quadrature amplitude modulation (FBMC/QAM) in multipath fading channels, a novel cyclic prefix–based FBMC/QAM (CP-FBMC/QAM) scheme is proposed in this paper. The proposed CP-FBMC/QAM scheme only requires simple single-tap channel equalization to compensate for the influence of multipath channels. Moreover, we formulate a prototype filter optimization problem by minimising the interference powers subject to the spectrum localization constraints and derive prototype filters with good spectrum confinement for CP-FBMC/QAM. The proposed prototype filters can eliminate the impact of CP insertion on the spectrum confinement. Simulation results confirm the effectiveness of CP-FBMC/QAM in terms of spectrum confinement and bit error rate performance.</p>","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70019","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IET Communications","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/cmu2.70019","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
To eliminate the error floor of filter bank multicarrier with quadrature amplitude modulation (FBMC/QAM) in multipath fading channels, a novel cyclic prefix–based FBMC/QAM (CP-FBMC/QAM) scheme is proposed in this paper. The proposed CP-FBMC/QAM scheme only requires simple single-tap channel equalization to compensate for the influence of multipath channels. Moreover, we formulate a prototype filter optimization problem by minimising the interference powers subject to the spectrum localization constraints and derive prototype filters with good spectrum confinement for CP-FBMC/QAM. The proposed prototype filters can eliminate the impact of CP insertion on the spectrum confinement. Simulation results confirm the effectiveness of CP-FBMC/QAM in terms of spectrum confinement and bit error rate performance.
期刊介绍：
IET Communications covers the fundamental and generic research for a better understanding of communication technologies to harness the signals for better performing communication systems using various wired and/or wireless media. This Journal is particularly interested in research papers reporting novel solutions to the dominating problems of noise, interference, timing and errors for reduction systems deficiencies such as wasting scarce resources such as spectra, energy and bandwidth.
Topics include, but are not limited to:
Coding and Communication Theory;
Modulation and Signal Design;
Wired, Wireless and Optical Communication;
Communication System
Special Issues. Current Call for Papers:
Cognitive and AI-enabled Wireless and Mobile - https://digital-library.theiet.org/files/IET_COM_CFP_CAWM.pdf
UAV-Enabled Mobile Edge Computing - https://digital-library.theiet.org/files/IET_COM_CFP_UAV.pdf
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