Synchronization error in QAM-based FBMC system

Wonsuk Chung, Beomju Kim, Moonchang Choi, Hyungju Nam, Hyunkyu Yu, Sooyoung Choi, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

We investigate the impact of the time offset (TO) and carrier frequency offset (CFO) on the performance of a filter bank multicarrier- quadrature amplitude modulation (FBMCQAM) system. As opposed to conventional FBMC system where offset QAM (OQAM) is utilized due to the intrinsic interference, the FBMC-QAM system cancels the intrinsic interference based on the orthogonality conditions between the two kinds of filters. Because the FBMC-QAM system uses two kinds of filters, the effects on the TO and CFO are different compared to the conventional FBMC system. The performance of this system is degraded by TO because the two-filter orthogonality conditions are not satisfied, resulting in severe inter-symbol interference (ISI). With respect to the CFO, the orthogonality between the two filters protects from performance degradation caused by intercarrier interference (ICI). Numerical results show that FBMCQAM is more robust against CFO while it is more sensitive to TO compared to the FBMC-OQAM system.

Original languageEnglish
Title of host publicationProceedings - 2014 IEEE Military Communications Conference
Subtitle of host publicationAffordable Mission Success: Meeting the Challenge, MILCOM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages699-705
Number of pages7
ISBN (Electronic)9781479967704
DOIs
Publication statusPublished - 2014 Nov 13
Event33rd Annual IEEE Military Communications Conference, MILCOM 2014 - Baltimore, United States
Duration: 2014 Oct 62014 Oct 8

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

Other33rd Annual IEEE Military Communications Conference, MILCOM 2014
CountryUnited States
CityBaltimore
Period14/10/614/10/8

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Chung, W., Kim, B., Choi, M., Nam, H., Yu, H., Choi, S., & Hong, D. (2014). Synchronization error in QAM-based FBMC system. In Proceedings - 2014 IEEE Military Communications Conference: Affordable Mission Success: Meeting the Challenge, MILCOM 2014 (pp. 699-705). [6956843] (Proceedings - IEEE Military Communications Conference MILCOM). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MILCOM.2014.122