Performance Analysis of Coded OFDM Signal for Radio over Fiber Transmission

Mahajan, Shikha

doi:10.9790/1676-0114952

Cited by 8 publications

(2 citation statements)

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“…OFDM is a transmission scheme that uses multiple sub-carriers to convert serial data stream with a high rate into multiple sub-carriers parallel streams with a low data rate and thus extends the symbol duration. This is helping to remove Inter Symbol Interference (ISI) [8], [9], [10], [11]. Therefore, OFDM becomes a better modulation technique that can be chosen for wireless communication to provide large data rates with high durability for the impairments the radio channel.…”

Section: Introductionmentioning

confidence: 99%

Study The Performance Evaluation of Radio over Optical Fiber System with Optical OFDM using Different Modulation Techniques

Ali¹,

Wadday²

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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This paper illustrates that the performance evaluation of radio over optical fiber (RoF) optical link has been analyzed with optical orthogonal frequency division multiplexing technique (OOFDM) through used different modulations schemes 4-QAM, 16-QAM, and 64-QAM for single-channel. The new proposed system has used a combination of OFDM-RoF architecture and compare the performance of the network for different digital modulation schemes with 15 Gpbs data rate and 5.8 GHz radio frequency (RF), for the optical fiber lengths (20 up to 50) km to compensate the dispersion and other effects of distortion of wireless networks. The performance analysis is based on the optical spectrum of the transmitted signal, constellation diagrams and symbol error for four and eight channels. We can observe that the signal doesn't have any dispersion after 20 km of optical fiber length for the 4-QAM with OFDM technique, as well as, the system can be done well within 50 km of optical fiber length. In other words, the dispersion effect on the signal after 20 km of fiber length is less than after 50 km, which has distorted with a large dispersion. Therefore, the simulation results show that the 64-QAM-OFDM-RoF system gives the highest value of the symbol error. We have used Optisystem "version 14" as a simulation software package.

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Section: Introductionmentioning

confidence: 99%

Study The Performance Evaluation of Radio over Optical Fiber System with Optical OFDM using Different Modulation Techniques

Ali¹,

Wadday²

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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“…It increases signal RF transmission performance with a 16-QAM constellation in a single mode fiber (SMF) [2] which used quadrature modulator 7.5 GHz and the single optical modulator gave high data rate transmission but limited to short distances. The performance of the coded-OFDM in Multimode fiber (MMF) also shows 16- 1087 QAM, and 16-phase shift keying (16-PSK) technique raise the bit rate for medium-haul transmission along two km [3]. There is facilitation to defend OFDM orthogonal signal in the 4-QAM format for the 7.5 GHz carrier frequency, it uses an optical modulator, LiNb Mach-Zehnder modulator (LiNb-MZM) [1], the OFDM signal can pass through SMF until 60 km with electrical amplification.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Digital Modulation for Coherent Detection of OFDM Scheme on Radio over Fiber System

Khair

Mustika

et al. 2016

IJECE

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Radio over fiber (RoF) system with the coherent detection offers high linearity for the transparent transport of high-frequency microwave signals, and better receiver sensitivity compared with intensity-modulated direct detection systems. The purpose of this paper is to analyze the performance of digital modulation for coherent detection of orthogonal frequency division multiplexing (OFDM) scheme on RoF system at 10 Gbps up to 100 km fiber length. The results show that coherent detection of OFDM-RoF system with 16 quadrature amplitude modulation (16-QAM) has the value of bit error rate (BER) and the symbol error rate (SER) is very low and its constellation is better compared with other modulation formats (4-QAM, quadrature phase shift keying (QPSK), 8-PSK and 16-PSK), which BER 16-QAM is 0.053 and SER is 15.7%. The results also show that BER value of 4-QAM and QPSK relatively similar to fiber length variations. In general, an increasing value of the BER and SER for each modulation format are almost equal to the fiber length of 60-70 km (Region I and II). However, there is a significant increase in the value of BER in fiber length of 80-100 km (Region III. A and III. B) for the modulation of 4-QAM, QPSK, 8-PSK, and 16-PSK.

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Radio over Fiber (RoF) for Future Generation Networks

Kaur¹,

Sharma²

2022

Broadband Connectivity in 5G and Beyond

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Performance Analysis of Coded OFDM Signal for Radio over Fiber Transmission

Abstract: : The main aim of this paper is to analyze the influence of the modulation techniques

Cited by 8 publications

References 6 publications

Study The Performance Evaluation of Radio over Optical Fiber System with Optical OFDM using Different Modulation Techniques

Study The Performance Evaluation of Radio over Optical Fiber System with Optical OFDM using Different Modulation Techniques

Performance Analysis of Digital Modulation for Coherent Detection of OFDM Scheme on Radio over Fiber System

Radio over Fiber (RoF) for Future Generation Networks

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