Optical heterodyne analog radio-over-fiber (A-RoF) links provide an efficient solution for future millimeter wave (mm-wave) wireless systems. The phase noise of the photo-generated mm-wave carrier limits performance such links, especially, transmission low subcarrier baud rate multi-carrier signals. In this work, we present three different techniques compensation laser frequency offset (FO) and...

Chromatic dispersion from optical fiber is the most important problem that produces temporal skews and destroys the rectangular structure of code patterns in the spectra-amplitude-coding-based optical code-division multiple-access (SAC-OCDMA) system. Thus, the balance detection scheme does not work perfectly to cancel multiple access interference (MAI) and the system performance will be degrade...

A system for integrated optical LiNbO3 Mach–Zehnder modulator operating point remote control and stabilization was developed. It consisted of a conventional telecom photodiode passive electronic circuit at the bias input modulator. Light from an amplitude-modulated laser used to remotely set output voltage Information regarding current that had been provided with feedback implementation taken D...

W-band wireless transmission has attracted a lot of interest due to its wider available bandwidth (i.e. 75-110 GHz). In this article, we propose a direct-detection orthogonal frequency division multiplexing radio over fiber (OFDM-RoF) system via two cascaded single-drive MZMs at center frequency of 103 GHz. We discuss maximum bandwidth of different modulation formats under forward error correct...

In this paper, we present a performance analysis of a Multi-band, Orthogonal Frequency Division Multiplexing (MB-OFDM) Radio-Over-Fibre (RoF) system for UltraWideband (UWB) applications in the 60-GHz radio band. We have made use of two cascaded Mach-Zehnder modulators (MZMs) to carry out optical upconversion of the MB-OFDM signal to the 60 GHz band. The impact of the non-linearity of the MZM, f...

The advent of the 5th generation mobile networks brought a large number new use case and applications to be supported by physical layer (PHY), which must more flexible than all previous radio access (RAN). concept centralized RAN (C-RAN) allows baseband processing performed in central office, simplifying network deployment also allowing operators dynamically control PHY according with requireme...

An all-optical radio-over-fiber (RoF) link with double spectral-efficient transmission and compensation of chromatic dispersion-induced power fading is proposed experimentally demonstrated. At the central office, a commercial dual-polarization quadrature phase-shift keying modulator utilized to produce polarization-multiplexed signal composed two modulated microwave vector signals an unmodulate...

This paper has presented the different data transmission limitations in radio over fiber communication systems such as total losses and fiber dispersion. These limitations can be solved by Soliton transmission technique. Signal to noise ratio, bit error rate, and optical signal to noise ratio can be investigated. The transmission bit rate per channel can be analyzed with using both space divisi...

Linearization technologies that can be used for linearizing RoF transmission are reviewed. Three main linearization methods, i.e. electrical analog linearization, optical linearization, and electrical digital linearization are presented and compared. Analog linearization can be achieved using analog predistortion circuits, and can be used for suppression of odd order nonlinear distortion compon...