Transmission Performance Analysis of WDM Radio over Fiber Technology for Next Generation Long-Haul Optical Networks

Ahmed, Badiaa Ait; Aghzout, Otman; Chakkour, Mounia; Chaoui, Fahd; Naghar, Azzeddin

doi:10.1155/2019/5087624

Cited by 14 publications

(3 citation statements)

References 12 publications

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“…The Any increase or decrease of the temperature from a reference value results in shifting the grating centre wavelength accordingly. At the transmitter side, the WDM combines multiple sensed data simultaneously with high data rate at a time from different sensors over a common communication channel and send it to the receiver side [19][20]. This paper illustrates transmission of the sensed data over both wired and wireless channels.…”

Section: Proposed Sensor Layoutmentioning

confidence: 99%

“…Multiple FBG sensors are proposed to be distributed in the area of concern to detect the temperature change and to multiplex the sensed data to be sent over a common channel to some remote monitoring unit. Wavelength Division Multiplexing (WDM) is used to multiplex temperature as coming from several sources distributed over a given area [10][11]. Multiplexing reduces the number of components and installation cost within a sensor network.…”

Section: Introductionmentioning

confidence: 99%

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Two Applications of FBG Temperature Sensor for Environmental Safety

Tripathy¹,

Parween²

2021

Preprint

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Detectionand monitoring of temperature in fire sensitive areas, high temperature zones such as underground coal mines and smelting plant applications is a crucial requirement in order to ensure safety of working personnel and to avoid unnecessary damage to life and infrastructure. Smoldering combustion is most often responsible for underground coal mine fire. A commonly used method for detection of underground fire can be done through temperature gradient.Similarly smelting plants as mandated in various stages of aluminium production starting from the mixing stage typically having 160 o C-180 o C to the alumina electrolysis process that is characterized by about 1000°C.Therefore, detection and subsequent monitoring of temperature change in underground coal mines as well as smelting plants is an important concern. A four channel FBG temperature sensor based system is proposed in this paper that demonstrates multiple FBG sensors. These four sensors sense different temperatures and a single channel making use of wavelength division multiplexing (WDM) is used thereafter to send the sensed data. A WDM demultiplexer is used to retrieve the originally transmitted signal at the receiver. Three different channels such as Optical fiber cable (OFC), Free Space Optics (FSO) and Optical Wireless communication (OWC) channels have been simulated here to assess and compare the performance of the proposed WDM-FBG sensor system.

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Section: Proposed Sensor Layoutmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two Applications of FBG Temperature Sensor for Environmental Safety

Tripathy¹,

Parween²

2021

Preprint

View full text Add to dashboard Cite

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“…While some researcher work on including dispersion compensation fiber [8] to reduces the dispersion effects. In fact the optical DPSK techniques shows the capability to reduce the effect of both the non-linear effect and the dispersion in fiber link specially when the system used for long-haul transmission [9][10][11]. However, many researchers proposed several solutions to redact the effect of high-speed optical network impairments.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of DPSK Technique for Optical Transmission Systems

Yaseen¹

2021

JPS

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The long-distance high data rate transmission is accompanied by many transmission defects, which reduce the performance of optical communication systems. Therefore, due to the need to increase data capacity for the end user, signal regeneration techniques were used to mitigate these non-linear defects in the electric or optical field. Several techniques used to modify the optical signal, which is the possible solution to reduce the limit of non-linear transmission defects, especially before converting the signal from the optical field to the electric field. Since most of the techniques used to reduce the attenuation in the optical signal do not have the ability to reduce the error rate to reach a bit error rate (BER) less than 10-10 with a transmission capacity less than -10dBm. In this paper, the performance evaluation of DPSK has been validated for its adequate use in transmission systems. Nevertheless, the performance of the DPSK optical system was assessed to rely on a different coding format such as: Return to Zero (RZ) & Non-Return to Zero (NRZ-DPSK). The system is designed to withstand high data rate on long-distance optical transmission systems. The system investigated was simulated with OptiSystemTM 13.0 commercial software. The investigated system demonstrated the ability to mitigate nonlinear impairments from the noisy optical DPSK system with high bit-error rate (BER) improvement at low power transmission. Optical DPSK demonstrates the ability to send high-rate data transmission systems for use in the next generation of optical networks.

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Performance Analysis of WDM-hybrid RFoFSO\FO System Under Different Weather Conditions Utilizing A Hybrid Optical Amplifier

Zuhair

Alnajjar

Arif

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The hybrid system WDM Radiofrequency over free space optics\fiber optic (RoFSO\FO) is one of the modern technologies that support developing the 5th generation for the communication network. The WDM RoFSO\FO system is designed to transmit high data rates over a long distance under variable weather conditions (fog, dust, and rain). Where the attenuation caused by atmospheric changes is one of the most important obstacles faced the FSO channel. The spatial diversity technique is used by sending multiple copies across the free space to improve system performance. The hybrid design tested the performance of 16 channels optical transmission, each channel transmits 2.5Gbps data rate modulated by PSK modulator on a 20GHz radio frequency signal. Where 40 gigabits per second was transmitted via 4000m multi-channels FSO extending to 120 km optical fiber as a total distance, 80 km of which was amplified by Raman / EDFA hybrid optical amplifier. The bit error rate BER and the Q-factor monitored and compared with the standard Kim model. From the results obtained by using the OptiSystem simulation, an improvement in the system was found significantly by increasing the transmission capacity when using WDM technology and long-distance transmission under variable weather conditions without adding a light source.

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Transmission Performance Analysis of WDM Radio over Fiber Technology for Next Generation Long-Haul Optical Networks

Cited by 14 publications

References 12 publications

Two Applications of FBG Temperature Sensor for Environmental Safety

Two Applications of FBG Temperature Sensor for Environmental Safety

Performance Analysis of DPSK Technique for Optical Transmission Systems

Performance Analysis of WDM-hybrid RFoFSO\FO System Under Different Weather Conditions Utilizing A Hybrid Optical Amplifier

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