TY - JOUR
T1 - Experimental evaluation of real-time sigma-delta radio over fiber system for fronthaul applications
AU - Hadi, Muhammad Usman
AU - Jung, Hyun
AU - Traverso, Pier Andrea
AU - Tartarini, Giovanni
N1 - Publisher Copyright:
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/10
Y1 - 2021/10
N2 - Sigma-delta radio over fiber (ΣΔ-RoF) is an expedient technology for next-generation networks including 5G cloud/centralized radio access networks (C-RAN). In this article, we demonstrate a realistic experimental scenario for ΣΔ-RoF link targeting C-RAN fronthaul applications, by using baseband second-order 1-bit sigma-delta modulation (ΣΔ-M). The experimental set-up validates the LTE 20 MHz signals having modulation order of 256-quadrature amplitude modulation for a carrier frequency of 3 GHz, up to 10 km of standard single mode fiber. A detailed analysis of the ΣΔ-RoF system performance is reported by adjacent channel leakage ratio and error vector magnitude. Furthermore, an experimental study is evaluated where ΣΔ-RoF is compared with its counterparts. It is deduced that ΣΔ-RoF corroborates the present range of C-RAN fronthaul networks and can be a promising candidate for future mobile haul applications.
AB - Sigma-delta radio over fiber (ΣΔ-RoF) is an expedient technology for next-generation networks including 5G cloud/centralized radio access networks (C-RAN). In this article, we demonstrate a realistic experimental scenario for ΣΔ-RoF link targeting C-RAN fronthaul applications, by using baseband second-order 1-bit sigma-delta modulation (ΣΔ-M). The experimental set-up validates the LTE 20 MHz signals having modulation order of 256-quadrature amplitude modulation for a carrier frequency of 3 GHz, up to 10 km of standard single mode fiber. A detailed analysis of the ΣΔ-RoF system performance is reported by adjacent channel leakage ratio and error vector magnitude. Furthermore, an experimental study is evaluated where ΣΔ-RoF is compared with its counterparts. It is deduced that ΣΔ-RoF corroborates the present range of C-RAN fronthaul networks and can be a promising candidate for future mobile haul applications.
KW - Radio over fiber
KW - sigma-delta modulation
UR - http://www.scopus.com/inward/record.url?scp=85092301974&partnerID=8YFLogxK
U2 - 10.1017/S1759078720001282
DO - 10.1017/S1759078720001282
M3 - Journal article
AN - SCOPUS:85092301974
SN - 1759-0787
VL - 13
SP - 756
EP - 765
JO - International Journal of Microwave and Wireless Technologies
JF - International Journal of Microwave and Wireless Technologies
IS - 8
ER -