Adaptive 2×2 MIMO employed Wavelet-OFDM-Radio over Fibre Transmission

Abstract

Due to high peak-to-average-power ratio (PAPR) and low spectral-efficiency, the conventional Fast Fourier Transform based orthogonal frequency division multiplexing (OFDM) is losing its place to the other multicarrier modulation schemes. Alternatively, the wavelet treated multiple-input multiple-output (MIMO)-OFDM is gaining its popularity in realization of futuristic 5G networks due to proffering high spectral-efficiency, low-cost and low phase-noise. Subsequently, this work demonstrates a RF transmission system in S-band employing \times 2$ MIMO-OFDM using orthogonal- and biorthogonal-wavelets with diverse phase shift keying modulation (PSK) schemes. Among the available MIMO configurations, the authors implement spatial diversity as it promises good reliability in noisy links [11]. However, the distribution of Wavelet-OFDM (W-OFDM) signals over a radio over fibre (RoF) link is critically affected by the optical sub-system non-linearity. So, the simplest \times 2$ Alamouti's space-time block code (STBC) is implemented in this work to overcome this non-linearity and to realize a less-complex detection. The work is further extended to realize an adaptive MIMO-RoF system employing W-OFDM scheme to adjust itself to a suitable available phase shift keying strategy as per the link-situation to retain an optimal balance of link-quality and spectral-efficiency.

Publication DOI: https://doi.org/10.1109/ACCESS.2020.2970085
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. This work is carried out in Aston Institute of Photonic Technologies, Aston University, Birmingham, UK and is supported by European Union sponsored H2020-MSCA-IF-EF-ST project
Uncontrolled Keywords: Link-adaptation,MIMO,OFDM,radio over fibre,wavelet,Computer Science(all),Materials Science(all),Engineering(all)
Publication ISSN: 2169-3536
Full Text Link:
Related URLs: https://ieeexpl ... cument/8972383/ (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-02-06
Published Online Date: 2020-01-28
Accepted Date: 2020-01-27
Authors: Vishal, Vishal
Sergeyev, Sergey (ORCID Profile 0000-0002-1515-5019)
Kaur, Jaswinder

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