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Content Provider | IET Digital Library |
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Author | Wang, Zhenduo Ning, Xiaoyan Sun, Zhiguo |
Abstract | As one of the 5G waveform candidates, generalised frequency division multiplexing (GFDM) systems have been proposed to achieve lower out of band radiation and stronger robustness against synchronisation errors. However, theoretical BER performances of GFDM systems with in-phase/quadrature (IQ) imbalance, as well as compensation strategies, have not been widely investigated. In this Letter, the authors evaluate theoretical BER performances of GFDM systems with transmitter IQ imbalance (IQI) before and after a proposed compensation method. Basically, they give approximated BER expressions for different modulations through considering introduced IQI completely as useless interference, and then derive a more precise BER expression for QPSK modulation. Additionally, they put forward a compensation method to remove IQI interference in GFDM systems at the cost of enlarged noise. Furthermore, analytical BER expressions with IQI compensation are derived, and then the effectiveness of the proposed compensation strategy is proven by theoretical and simulation results. |
Starting Page | 1151 |
Ending Page | 1153 |
Page Count | 3 |
ISSN | 00135194 |
Volume Number | 56 |
e-ISSN | 1350911X |
Issue Number | Issue 21, Oct (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/21 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2020.1545 |
Journal | Electronics Letters |
Publisher Date | 2020-09-07 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | 5G Waveform Candidates Analytical BER Expressions BER Analysis Compensation Compensation Method Compensation Strategy Error Statistics Frequency Division Multiplexing Generalised Frequency Division GFDM System IQ Imbalance Compensation IQI Compensation Modulation And Coding Method OFDM Modulation Precise BER Expression Quadrature Phase Shift Keying Radio Link And Equipment Radio Transmitters Statistics Synchronisation Theoretical BER Performances Transmitter IQ Imbalance |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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