Performance and evaluation of Volterra Nonlinear Equalizer for coherent RoF mobile front-haul network: a case study of QOSTBC-OFDM and QOSTBC-GFDM waveforms - Archive ouverte HAL Access content directly
Journal Articles Optical and Quantum Electronics Year : 2021

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

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Khalil Aissaoui
  • Function : Correspondent author
  • PersonId : 1141189

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Sofien Mhatli
  • Function : Author
Oussama Gharbi
  • Function : Author
  • PersonId : 1107644
Adel Aldalbahi
  • Function : Author
Rabah Attia
  • Function : Author
  • PersonId : 885114
Shyqyri Haxha

Abstract

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.
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Dates and versions

hal-03382840 , version 1 (18-10-2021)

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Khalil Aissaoui, Sofien Mhatli, Oussama Gharbi, Adel Aldalbahi, Rabah Attia, et al.. Performance and evaluation of Volterra Nonlinear Equalizer for coherent RoF mobile front-haul network: a case study of QOSTBC-OFDM and QOSTBC-GFDM waveforms. Optical and Quantum Electronics, 2021, 53 (3), pp.153. ⟨10.1007/s11082-021-02796-0⟩. ⟨hal-03382840⟩
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