Subcarrier multiplexed radio over fiber system with optical single sideband modulation

A subcarrier multiplexed radio over fiber (RoF) system using optical single sideband (OSSB) modulation is proposed. OSSB modulation reduces the bandwidth requirements and also combats the radio frequency (RF) power fading issue due to the dispersive effects in optical fiber. Subcarrier multiplexing...

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Bibliographic Details
Published inJournal of optical communications Vol. 44; no. 1; pp. 1371 - 1376
Main Authors R, Pradeep, N, Vijayakumar
Format Journal Article
LanguageEnglish
Published Berlin De Gruyter 30.10.2020
Walter de Gruyter GmbH
Subjects
5G mobile communication
Bandwidths
Electric fields
Hilbert transform
Hilbert transformation
Mach-Zehnder interferometers
Mach–Zehnder modulator
Multiplexing
Optical fibers
optical single sideband
Radio frequency
radio over fiber
Single sideband transmission
Spectrum allocation
subcarrier multiplexing
Subcarriers
Velocity
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Summary:A subcarrier multiplexed radio over fiber (RoF) system using optical single sideband (OSSB) modulation is proposed. OSSB modulation reduces the bandwidth requirements and also combats the radio frequency (RF) power fading issue due to the dispersive effects in optical fiber. Subcarrier multiplexing (SCM) is a technique used to transmit multiple RF signals through the same optical fiber to utilize its large bandwidth. A theoretical analysis showed that OSSB generation with a number of subcarriers can be done by Hilbert transform method employing a single dual drive Mach–Zehnder Modulator (MZM). This technique is very relevant in the emerging 5G standards which require accesses of multiple standards simultaneously (5G, LTE, and Wi-Fi). This paper demonstrates a low cost solution of OSSB-RoF system and more effective utilization of the spectrum. Simulations results showing satisfactory reception of signals up to 50 km.
ISSN:0173-4911
2191-6322
DOI:10.1515/joc-2020-0144