A 60 GHz RoF generation system based on optical beat of narrowband Bragg filters

Abstract

Radio over fiber is considered as a very promising technology that will indisputably compete as a viable solution for the distribution of current and future broadband wireless communication systems. In this paper, we propose a new millimeter-wave generation system: the 60 GHz system which is based on two narrowband Bragg filters forming with the coupler a Y system. The millimeter wave is obtained by the optical beat technique detection of two optical waves. The frequency interval between the two waves generated by the Bragg filters gives the 60 GHz millimeter wave. The simulation results demonstrate that an optimal BER less than 10 −9 for different values of flow rate and a good quality factor Q can be reached by using Bragg filters with a very narrow band. In addition, we simulate the 60 GHz system for various lengths of optical fiber. The eye diagram remains clear and open for fiber lengths that reach 50 km.

An effective practical method for narrowband wireless mesh networks performance

“…Several types of research have been carried out in the field of narrowband. In the field of optical communication systems, Bragg gratings are used to provide narrow-spectrum filters [2]. The paper presents an experimental analysis of a narrowband wireless mesh network, using one-hop forwarding time, payload bitrate, message size, modulation, ACK, channel spacing, payload bitrate, and maximum transmission unit (MTU) as evaluation parameters.…”