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    Öğe
    A new hybrid architecture of radio over fiber/wavelength division multiplexing in optical network
    (Institute of Electrical and Electronics Engineers Inc., 2019) Hussien, Humam; Atilla, Doğu; Essa, Essa; Aydın, Çağatay
    Now days, there has been a growing and continuous demand for (high data rates) beyond existing wired and wireless networks. Radio-over-Fiber technology is considered as an efficient and practical solution for providing (broadband wireless access). in this paper, many techniques are used to implement a system that has the facility to offer a (high bit rate), (broadband bandwidth), (more coverage), and (lower cost). So, (RoF) technology was used to transmission signals. Wavelength-Division-Multiplexing (WDM) technique was used to send many signals through the same link, and (DFSK) with Non-Return-to-Zero (NRZ) as modulation format. 80Gpbs separate on two channels was transmitted on (Single-Mode-fiber). The average results obtained from our experience were as follows Max Q- factor = 5.775719, Minimum BER = 3.64*10-6, Total Output Power (dBm) = -27.524, OSNR (dB) = 33.58116 for channel_1, for channel_2 Max Q- factor = 6.098659, Minimum BER = 8.70*10-10, Total Output Power (dBm) = -27.592, OSNR (dB) = 33.88505. All the average result that has from our simulation was very good and acceptable. The simulation and performance test of our experience was done using Optisystem. © 2019 IEEE.
  • Küçük Resim
    Öğe
    Software simulation for 20Gbps RoF architecture over SSMF using VCSEL and RZ as modulation format based on WDM
    (Altınbaş Üniversitesi, 2018) Hussain, Humam; Atilla, Doğu Çağdaş; Essa, Essa; Aydın, Çağatay
    Radio-over-Fiber (R.o.F) is considered as a technology where it can modulate the light with radio frequency signals (R.F) and transmit through fiber optic cable to simplify and transfer wireless access. According to increasing demand of high bandwidth of communication networks, (R.o.F) considered as an efficient and practical solution. In this paper, we will have proposed and shown the performance of RZ modulation formats and radio frequency with a specific type of laser that is vertical cavity surface emitting laser (V.C.S.E.L) with two channels and sent the signals on one single-mode fiber (S.M.F) by using wavelength-division-multiplexing (W.D.M). The bit rate of each channel is 10Gbps, so the cumulative bit rate on SMF is 20 Gbps. The average results of our experience from our simulation for two channels are Total Output Power dBm (6.53388), Max Q- Factor (6.67182), Minimum BER (3.43236*10-11), OSNR (dB) (29.6399). All the average values are good and acceptable, we get on it because we using attractive components and there is compatibility between all components. The simulation and performance test of RoF was done using Optisystem 7.0.