Integration of millimeter-wave and optical link for duplex transmission of hierarchically modulated signal over a single carrier and fiber for future 5G communication systems

Afnan Riaz, Salman Ghafoor () and Rizwan Ahmad
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Afnan Riaz: National University of Sciences and Technology
Salman Ghafoor: National University of Sciences and Technology
Rizwan Ahmad: National University of Sciences and Technology

Telecommunication Systems: Modelling, Analysis, Design and Management, 2019, vol. 72, issue 2, No 5, 229 pages

Abstract: Abstract Integration of optical and millimeter-wave systems provide a promising solution for future giga-bits per second wireless communication systems. We have proposed and simulated full-duplex transmission of a hierarchically modulated signal carrying data for two different users at a combined rate of 1.5 Gbps. Analogue modulation of the optical carrier is used for the transmission of downlink data while the same carrier is re-used by digitally modulating it with the uplink data. The use of optical analogue and digital modulation schemes allow the transmission of duplex data over a single optical fiber. A millimeter-wave channel $$\hbox {NYUSIM}\_{\mathrm{v1}}\_4$$ NYUSIM _ v 1 _ 4 is integrated with the optical link. The performance of the downlink and uplink signals are evaluated in terms of error vector magnitude and bit-error rate measurements, respectively. The effect of fiber length, received optical power and data rates on the performance has also been evaluated. It is shown that for a fiber length of 10 km, the lowest error vector magnitude obtained for the hierarchically modulated signal after transmission through a 14 m millimeter-wave link is 9.5%.

Keywords: 5G communication; Millimeter-waves; Hierarchical modulation; Carrier re-use (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s11235-019-00558-8

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