A Review on Radio-Over-Fiber Technology-Based Integrated (Optical/Wireless) Networks

Abstract

In the present paper, radio-over-fiber (RoF) technology has been proposed, which is the integration of the optical and radio networks. With a high transmission capacity, comparatively low cost and low attenuation, optical fiber provides an ideal solution for accomplishing the interconnections. In addition, a radio system enables the significant mobility, flexibility and easy access. Therefore, the system integration can meet the increasing demands of subscribers for voice, data and multimedia services that require the access network to support high data rates at any time and any place inexpensively. RoF has the potentiality to the backbone of the wireless access network and it has gained significant momentum in the last decade as a potential lastmile access scheme. This paper gives the comprehensive review of RoF technology used in the communication system. Concept, applications, advantages and limitations of RoF technology are also discussed in this paper.

Summary on RoF Technologies, Modulations, and Optical Filters: Review

“…High radio frequency frequencies (over 10 GHz) are often used for external modulation. An external modulator modifies the laser light with an intermediate frequency (IF) or, in the most basic arrangement, a mm-wave tone, after a continuous wave (CW) laser [29]. While direct modulation is advantageous for cost-effective transmitters, it introduces challenges such as excessive chromatic dispersions and undesirable wavelength chirping, particularly at high speeds.…”

Implementasi Transmisi Sinyal TV pada Media Transmisi Fiber Optik Singlemode

“…Dalam era informasi, layanan sistem transmisi berpita lebar (broadband) sangat dibutuhkan untuk menunjang kualitas aliran informasi antara pelanggan dan kebutuhan jumlah pelanggan akan akses informasi yang tersedia [1]. Sistem komunikasi fiber optic merupakan system yang dapat diterapkan untuk mengatasi permasalahan tersebut dengan keunggulan memiliki kapasitas pembawa informasi yang tinggi inilah menjadikan sistem ini sebagai kunci utama dari telekomunikasi modern [2]. Pada teknologi fiber optik telah dikembangkan hubungan transmisi dengan mengintegrasikan antara sistem komunikasi gelombang radio dengan sistem komunikasi serat optik [1].…”

R-FFT: Function Split at IFFT/FFT in Unified LTE CRAN and Cable Access Network

“…The strict latency requirements for the CRAN and DCCAP architectures limit the choice of generic protocols over Ethernet. Some of the fronthaul protocols that could be employed for the transport of information between headend/cloud and remote node are: 1) Radio over Fiber (RoF): Radio over fiber (RoF) transports the radio frequency signal over an optical fiber link by converting the electrically modulated signal to an optical signal [90]- [92]. RoF signals are not converted in frequency but superimposed onto optical signals to achieve the benefits of optical transmissions, such as reduced sensitivity to noise and interference.…”

“…1) Radio over Fiber (RoF): Radio over fiber (RoF) transports the radio frequency signal over an optical fiber link by converting the electrically modulated signal to an optical signal [90]- [92]. RoF signals are not converted in frequency but superimposed onto optical signals to achieve the benefits of optical transmissions, such as reduced sensitivity to noise and interference.…”