Ultra-Wideband Analog Radio-over-Fiber Communication System Employing Pulse-Position Modulation

Ultra-Wideband Analog Radio-over-Fiber Communication System Employing Pulse-Position Modulation

This research presents a novel approach to 28 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>GHz</mi></mrow></semantics></math></inline-formula> impulse radio ultra...

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Bibliographic Details
Main Authors:	Sandis Migla, Kristaps Rubuls, Nikolajs Tihomorskis, Toms Salgals, Oskars Ozolins, Vjaceslavs Bobrovs, Sandis Spolitis, Arturs Aboltins
Format:	Article
Language:	English
Published:	MDPI AG 2025-04-01
Series:	Applied Sciences
Subjects:	microwave communication optical fiber communication space communications microwave photonics energy efficiency ultra wideband technology
Online Access:	https://www.mdpi.com/2076-3417/15/8/4222
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Summary:	This research presents a novel approach to 28 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>GHz</mi></mrow></semantics></math></inline-formula> impulse radio ultra-wideband (IR-UWB) transmission using pulse position modulation (PPM) over an analog radio-over-fiber (ARoF) link, investigating the impact of fiber-based fronthaul on the overall performance of the communication system. In this setup, an arbitrary waveform generator (AWG) is employed for PPM signal generation, while demodulation is performed with a commercial time-to-digital converter (TDC) based on an event timer. To enhance the reliability of transmitted reference PPM (TR-PPM) signals, the transmission system integrates Gray coding and Consultative Committee for Space Data Systems (CCSDS)-standard-compliant Reed-Solomon (RS) error correcting code (ECC). System performance was evaluated by transmitting pseudorandom binary sequences (PRBSs) and measuring the bit error ratio (BER) across a 5-m wireless link between two 20 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="normal">d</mi><mi mathvariant="normal">B</mi><mi mathvariant="normal">i</mi></mrow></semantics></math></inline-formula> gain horn (Ka-band) antennas, with and without a 20 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="normal">k</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> single-mode optical fiber (SMF) link in transmitter side and ECC at the receiver side. The system achieved a BER of less than 8.17 × 10<sup>−7</sup>, using a time bin duration of 200 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="normal">p</mi><mi mathvariant="normal">s</mi></mrow></semantics></math></inline-formula> and a pulse duration of 100 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="normal">p</mi><mi mathvariant="normal">s</mi></mrow></semantics></math></inline-formula>, demonstrating robust performance and significant potential for space-to-ground telecommunication applications.
ISSN:	2076-3417