Performance analysis and optimization of radio over fiber link

Abstract

This paper is an attempt for a thorough appraisal of Radio over Fiber (RoF) systems. RoF system is divided into three main subsystems: Central Station (CS), Optical Fiber Network (OFN) and Base Station (BS). Each subsystem has its own functions, such as signal generation and modulation techniques at the central station, optical fiber characteristics and the detection at the base station. In this paper the merits of RoF systems have acknowledged. The radio frequency and optical modulation techniques, fiber characteristics and detection techniques are studied. The impact of technology choice is reviewed and comparison of optical modulation techniques, optical fiber and receiver are presented.There has been a significant efforts dedicated to the merging of radio frequency and optical fiber technologies targeting the distribution of radio wave signals, in the recent years. The domain of Radio over Fiber (RoF) technologies and systems took birth from these endeavors. This kind of systems promises a secure, cost-effective, and high-capacity mobile and wireless access for the prospect facilitation of broadband, interactive, and multimedia wireless services.

Performance Analysis of Modulation Formats for Next Generation RoF Systems

“…The BS consists of small antenna unit known as remote antenna, which converts the optical signal back to electrical domain and give it to the end user. Similarly, the BS receives the radio signals from the end users, converts them into the optical domain and transmits the information to CS via OFN [1]. Thus, RoF system provides a single shared location for centralize RF signal processing [2].…”

“…The information signal travels in the form of light so there are less chances of radio frequency interference. Although its installation requires huge cost, but its maintenance is less costly and reduces the consumption of power compared to wireless systems [1]. RoF system provides operational flexibility.…”

“…An overview of RoF system illustrating signal generation, comparison of different modulation schemes and fiber characteristics along with the receiver and detection mechanism is described in [1]. The comparison of orthogonal frequency division multiplexing (OFDM) modulation with quadrature amplitude modulation (QAM) shows that OFDM works better as modulation format than QAM.…”

“…The demand of efficient systems which support high data rates are the future of next generation networks. While optical fiber provides huge bandwidth and supports long distance communication, the radio wave frequencies compensate the spectrum congestion and provide large bandwidth in wireless domain [1]. RoF is a technique that offers access to the channel bandwidth.…”

Perancangan Jaringan Backbone Selular 10 dan 15 GHz SCM-WDM ROF

“…Penelitian yang berjudul "Performance Analysis and Optimization of Radio over Fiber Link" oleh Arun Joseph dkk [5], membahas arsitektur RoF pada frekuensi 40 GHz dan melakukan perbandingan terhadap berbagai macam teknik modulasi, karakteristik serat optik, dan konfigurasi penerima.…”