Performance and evaluation of Volterra Nonlinear Equalizer for coherent RoF mobile front-haul network: a case study of QOSTBC-OFDM and QOSTBC-GFDM waveforms

In this paper, we propose and investigate a multi-Gigabits-per-second baseband signal over Standard Single-Mode Fiber (SSMF) link using a 16-Quadrature Amplitude Modulation (16-QAM). This architecture can be deployed within the context of fifth-generation (5G) Cloud Radio Access Network (C-RAN). It...

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Bibliographic Details
Published in:Optical and quantum electronics 2021-03, Vol.53 (3), Article 153
Main Authors: Aissaoui, K., Mhatli, S., Gharbi, O., Aldalbahi, Adel, Attia, R., S.Haxha, I.Dayoub
Format: Article
Language:English
Subjects:
Artificial Intelligence
Bit error rate
Characterization and Evaluation of Materials
Computer Communication Networks
Computer Science
Electrical Engineering
Electronics
Engineering Sciences
Lasers
Linearity
Networking and Internet Architecture
Nonlinearity
Optical Devices
Optics
Orthogonal Frequency Division Multiplexing
Performance evaluation
Photonics
Physics
Physics and Astronomy
Quadrature amplitude modulation
Signal and Image processing
Signal distortion
Waveforms
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Summary:In this paper, we propose and investigate a multi-Gigabits-per-second baseband signal over Standard Single-Mode Fiber (SSMF) link using a 16-Quadrature Amplitude Modulation (16-QAM). This architecture can be deployed within the context of fifth-generation (5G) Cloud Radio Access Network (C-RAN). It consists of 4 × 4 Quasi-Orthogonal Space–Time Block Code Generalized Frequency Division Multiplexing (QOSTBC-GFDM) and Orthogonal Frequency Division Multiplexing (QOSTBC-OFDM) waveforms. It is based on the implementation of a third order Volterra Nonlinear Equalizer (VNLE) in the Remote Radio Unit (RRU). The VNLE has been efficiently employed to reduce the impact of the harmful effect of the photonic devices. A Zero Forcing (ZF) equalizer has been used at the User Equipment (UE) to overcome the wireless channel impairments. Our research shows that VNLE can be a promised solution to compensate signal distortions and non-linearity effects. Furthermore, this study shows that QOSTBC-GFDM is more efficient than QOSTBC-OFDM in terms of Out-Of-Band (OOB) emission and Spectral Efficiency (SE). Moreover, a comparable performance between the two waveforms in terms of Bit Error Rate (BER) and Error Vector Magnitude (EVM) is attained.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-021-02796-0