9.952-Gb/s On/Off keying signal transmission over 92-GHz radio-over-fiber system with 40-km single-mode fiber and 2-m air link

2013 ◽  
Vol 55 (5) ◽  
pp. 1014-1017 ◽  
Author(s):  
Yuan Fang ◽  
Jianjun Yu ◽  
Nan Chi ◽  
Ze Dong ◽  
Geekung K. Chang
Keyword(s):  
Signal Transmission ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Radio Over Fiber ◽  
Fiber System ◽  
Radio Over Fiber System

scholarly journals RL-SARSA Machine Learning Based Analog Radio over Fiber System

2019 ◽  
Author(s):  
Muhammad Usman Hadi
Keyword(s):  
Machine Learning ◽  
Bit Error Rate ◽  
Fiber Length ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Radio Over Fiber ◽  
Fiber System ◽  
Decision Method ◽  
Effective Decision ◽  
Radio Over Fiber System

We propose a 10-Gb/s 64-quadrature amplitude modulation (QAM) signal-based Radio over Fiber (RoF) system for 50 km of standard single mode fiber length which utilizes Reinforcement Learning (RL) SARSA based decision method to indicate an effective decision which mitigates nonlinearity. By utilizing RL-SARSA algorithm, the results demonstrate that significant reduction can be obtained in terms of bit error rate.

Experimental evaluation of real-time sigma-delta radio over fiber system for fronthaul applications

2020 ◽  
pp. 1-10 ◽  
Author(s):  
Muhammad Usman Hadi ◽  
Hyun Jung ◽  
Pier Andrea Traverso ◽  
Giovanni Tartarini
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Radio Over Fiber ◽  
Error Vector Magnitude ◽  
Sigma Delta Modulation ◽  
Fiber System ◽  
Sigma Delta ◽  
Radio Access ◽  
Set Up ◽  
Radio Over Fiber System

Abstract 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.

On the carrier generation and HD signal transmission using the millimeter-wave radio over fiber system

Optik ◽  
2013 ◽  
Vol 124 (23) ◽  
pp. 6172-6177 ◽  
Author(s):  
Syamsuri Yaakob ◽  
Muhammad Zamzuri Abdul Kadir ◽  
Sevia Mahdaliza Idrus ◽  
Norhakimah Md Samsuri ◽  
Romli Mohamad ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Signal Transmission ◽  
Radio Over Fiber ◽  
Fiber System ◽  
Carrier Generation ◽  
Wave Radio ◽  
Radio Over Fiber System

21 Gbps OFDM Wireless Signal Transmission at 60 GHz Using a Simple IMDD Radio-over-Fiber System

2010 ◽  
Author(s):  
Anthony Ng’oma ◽  
Po-Tsung Shih ◽  
Jacob George ◽  
Frank Annunziata ◽  
Michael Sauer ◽  
...  
Keyword(s):  
Signal Transmission ◽  
Radio Over Fiber ◽  
60 Ghz ◽  
Fiber System ◽  
Wireless Signal ◽  
Radio Over Fiber System

Performance Appraisal of Sigma Delta Modulated Radio over Fiber System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Muhammad Usman Hadi ◽  
Nelofar Aslam ◽  
Hyun Jung
Keyword(s):  
Performance Appraisal ◽  
High Speed ◽  
Access Network ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Radio Over Fiber ◽  
Error Vector Magnitude ◽  
Sigma Delta Modulation ◽  
Fiber System ◽  
Sigma Delta

AbstractRadio over fiber (RoF) is a promising solution for the next-generation wireless networks including fifth-generation Cloud/Centralized Radio Access Network (C-RAN). There exists a possibility to use Sigma Delta Modulated RoF (S-DRoF) that combines the advantages of analog RoF and digital RoF by means of sigma delta modulation (SDM) at the transmitter side subsequently replacing the employment of expensive and high-speed digital-to-analog converters. In this paper, we demonstrate the usage of second-order SDM for LTE 20 MHz signal having 64 QAM modulation on a central carrier frequency of 1.14 GHz for the implementation of S-DRoF for 20 km of standard single mode fiber with baud rate from 25 to 100 Mbaud. Furthermore, a comprehensive analysis of the design of SDM is explained followed by the experimental setup. The performance is reported in terms of error vector magnitude, constellations and adjacent channel power ratio. The results show that the proposed architecture performance is in with accordance to the limitations set by the 3GPP (Third Generation Partnership Project) standards and is a reasonable choice either for upgrading installed systems as well as for the new deployments.

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