On Symmetry Properties of Intrinsic Interference in FBMC-OQAM Systems

2018 29th Irish Signals and Systems Conference (ISSC) Pub Date : 2018-06-01 DOI:10.1109/ISSC.2018.8585379

Vibhutesh Kumar Singh, M. Flanagan, B. Cardiff

{"title":"On Symmetry Properties of Intrinsic Interference in FBMC-OQAM Systems","authors":"Vibhutesh Kumar Singh, M. Flanagan, B. Cardiff","doi":"10.1109/ISSC.2018.8585379","DOIUrl":null,"url":null,"abstract":"Filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) is a modulation technique which is widely considered as a strong contender to replace cyclic prefixed orthogonal frequency division multiplexing (CP-OFDM), for the future 5th generation (5G) of mobile wireless communication networks. FBMC-OQAM exhibits good spectral confinement properties, high spectral efficiency and immunity to synchronization errors, mainly due to its prototype filter’s localization properties. But these desirable traits come with the loss of orthogonality, rendering it only orthogonal for real symbols with imaginary interference appearing in both the frequency and time domains. In this work, we prove a set of symmetry properties of this interference for a general class of FMBC-OQAM systems, and use these relationships to derive autocorrelation matrices for interference from neighboring symbols and also for noise contributions. These matrices find application in receiver design and also in channel estimation. The derived symmetry properties are also demonstrated through numerical examples for various standard prototype filter designs.","PeriodicalId":174854,"journal":{"name":"2018 29th Irish Signals and Systems Conference (ISSC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 29th Irish Signals and Systems Conference (ISSC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISSC.2018.8585379","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) is a modulation technique which is widely considered as a strong contender to replace cyclic prefixed orthogonal frequency division multiplexing (CP-OFDM), for the future 5th generation (5G) of mobile wireless communication networks. FBMC-OQAM exhibits good spectral confinement properties, high spectral efficiency and immunity to synchronization errors, mainly due to its prototype filter’s localization properties. But these desirable traits come with the loss of orthogonality, rendering it only orthogonal for real symbols with imaginary interference appearing in both the frequency and time domains. In this work, we prove a set of symmetry properties of this interference for a general class of FMBC-OQAM systems, and use these relationships to derive autocorrelation matrices for interference from neighboring symbols and also for noise contributions. These matrices find application in receiver design and also in channel estimation. The derived symmetry properties are also demonstrated through numerical examples for various standard prototype filter designs.

查看原文本刊更多论文

FBMC-OQAM系统内禀干涉的对称性

滤波器组多载波偏置正交调幅(FBMC-OQAM)是一种被广泛认为是未来第五代(5G)移动无线通信网络取代循环前缀正交频分复用(CP-OFDM)的有力竞争者。FBMC-OQAM具有良好的光谱约束特性、较高的光谱效率和对同步误差的免疫力，这主要得益于其原型滤波器的局域化特性。但是这些理想的特性伴随着正交性的丧失，使得它只对在频域和时域都出现虚干扰的真实符号正交。在这项工作中，我们证明了一类一般FMBC-OQAM系统的这种干扰的一组对称性，并使用这些关系推导了来自邻近符号的干扰和噪声贡献的自相关矩阵。这些矩阵在接收机设计和信道估计中都有应用。通过各种标准原型滤波器设计的数值算例验证了所导出的对称特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2018 29th Irish Signals and Systems Conference (ISSC)

自引率

0.00%

发文量