Analysis of the Time-Frequency Localization Property of the Filter Banks for Optical OFDM/OQAM Systems

Fang, Xi; Wang, Yuchao; Suo, Zhufeng; Jiang, Hua; Gao, Xiaoguang; Zhang, Lei; Ding, Ding

doi:10.1109/jlt.2019.2936032

Cited by 14 publications

(7 citation statements)

References 40 publications

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“…The combination of IOTA filter and VENE achieved optimal performance thanks to the promising TFL property of IOTA. For various transmission distances, CO-OFDM/OQAM outperforms CO-OFDM due to the advantage in TFL property [47]. For CO-OFDM/OQAM, the increasing of FFT length and sampling rate might decrease the advantage of VENE due to promoted nonlinear effect induced interference.…”

Section: Discussionmentioning

confidence: 99%

“…For O-OFDM/OQAM, system robustness against IMI and nonlinear effect induced distortion could be suppressed effectively thanks to the employing of filter banks with good TFL property [47]. As we have known, for a prototype filter with promising TFL properties, 1 2 , , 0, 0, 0 q q q  and for…”

Section: Theory Of the Svem Model And Vene Methodsmentioning

confidence: 99%

“…According to [47], by using prototype filter with good TFL property, the ambiguity function Ag satisfies the property that…”

Section: Nonlinear Effect Induced Distortions Analysis For O-ofdmmentioning

confidence: 99%

“…The theoretical analysis has been validated by extensive Montel Carlo simulation results of the O-OFDM/OQAM systems by using commercial software VPI Transmissionmaker 10.1. As numerous simulation results show, both BER performance and launch power of the O-OFDM/OQAM system could be improved evidently by adopting VENE based on the employment of three typical filters, namely the Gaussian filter [46], the extended Gaussian filter [47], and the isotropic orthogonal transform algorithm (IOTA) filter [48]. The combination of VENE with the IOTA filter demonstrates optimal transmission performance due to the promising TFL property of IOTA filter.…”

Section: Introductionmentioning

confidence: 99%

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Volterra Expansion Based Intra Channel Nonlinear Effect Equalization Method for Optical OFDM/OQAM Systems

Fang

et al. 2020

IEEE Access

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Section: Discussionmentioning

confidence: 99%

Section: Theory Of the Svem Model And Vene Methodsmentioning

confidence: 99%

“…According to [47], by using prototype filter with good TFL property, the ambiguity function Ag satisfies the property that…”

Section: Nonlinear Effect Induced Distortions Analysis For O-ofdmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Volterra Expansion Based Intra Channel Nonlinear Effect Equalization Method for Optical OFDM/OQAM Systems

Fang

et al. 2020

IEEE Access

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“…However, the CE based IAM-C type is assessed as the optimum choice for signal estimation (2dB better performance over OFDM in RF field [10]), inasmuch as its pseudo-pilots have larger magnitude than IAM-R, and lower PAPR compared to other CE based preambles (i.e., the extended IAM-C, IAM-R and other interference cancellation methods) [11]- [12]. From such a perspective, the preamble has been introduced in coherent optical communications [13]- [14].…”

Section: Introductionmentioning

confidence: 99%

Efficiency Analysis of a Truncated Flip-FBMC in Burst Optical Transmission

et al. 2021

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A novel Flip-filter bank multicarrier (Flip-FBMC) based transmultiplexer (TMUX) with offset quadrature amplitude modulation is proposed to enhance the Flip-OFDM performance. Moreover, the possibility to reduce the TMUX response (latency) and increase the gain in the spectral efficiency have been investigated for the first time through a tail shortening method. The proposed design is based on a biorthogonal form for visible light communication (VLC) to increase the flexibility degree of the design requirements. However, the spectral efficiency is detected to be suffering from the ramp-up and the rampdown at the beginning and end, respectively, of the data burst. Hence, as penalty, Flip-FBMC imposes 9extra symbols than Flip-OFDM packet and two-factor compared to DCO-FBMC burst. A hard truncation for the lowest energy tail contributes to minimize the latency and limits the system penalty to 2.5 symbols which is lower than DCO-FBCM by 2 symbols. The results show that the prototype filter of Heisenberg factor (≈ 1) is highly desired to reduce the energy loss of truncated tail and improves the symbol error rate (SER) performance. The Flip-FBMC over a direct line-of-sight VLC channel gain is analyzed and, the channel estimation of truncated burst, which based on the interference approximation method (IAM) of IAM-C type, exhibits a superior performance of 1.5 dB at 10 -3 SER over IAM-R method and 1dB at 10 -5 SNR over a cyclic prefix of 1 point Flip-OFDM. On the other hand, the analysis reveals that IAM-C are slightly impacted by the burst cut compared to the nontruncated model. INDEX TERMS Filter bank multicarrier (FBMC), hard truncation methods, Heisenberg factor, interference approximation method, visible light communication (VLC), Flip-OFDM This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.

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