The approach of wavelength dense multiplexing using free space optical systems

Manea, Viorel; Petre, Monica; Puscoci, Sorin; Stoichescu, Dan Alexandru

doi:10.1109/ecai.2016.7861123

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…De-multiplexers are data recovery devices installed at the end of a WDM communication system. WDM communication systems enable independent information bitrates and access protocols to operate on the same system [8], which is a critical requirement for the development of communication systems, including FSO systems because it eliminates the cost of switching between protocols. Each optical channel has a predetermined protocol that can be treated (multiplexed/demultiplexed) at the ends of the independent transmission system, allowing for different data rates and access protocols to be used.…”

Section: Wdmmentioning

confidence: 99%

“…Several issues have hampered the performance of the (FSO) system, the most significant of which being atmospheric attenuation. Weather conditions like fog, rain, and snow are the primary causes of signal absorption and scattering [8,9], [12][13][14]. As a result, we can mitigate these issues by lengthening the transmission path and improving the received signal quality [10,11], [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…The performance of transmission link FSO systems that use a single-beam between transmitter and receiver stations (SISO) technique is poor; to improve the link performance of the system, multiple beams between transmit and receiving stations can be used Multiple-Input Multiple-Output (MIMO) technique [6, 7] [12]. By employing laser beam mixture expertise in a multi-beam FSO method, problems caused by weather attenuations scattering, absorption, and losses in received power due to detector losses can be mitigated Manea et al [8], [15,16]. Multi-beam (MIMO) technology eliminates transmission path interruptions caused by obstacles such as birds, insects, and weather attenuation such as fog, rain, snow, and scintillation.…”

Section: Introductionmentioning

confidence: 99%

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Improved performance of hybrid optical communications system

Naji

2021

QJES

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Frees Space Optical (FSO) system employs empty space to transfer information between the transmitter and receiver using light. The single-beam Single Input Single Output (SISO) technology is well known for being subject to air attenuation induced by weather conditions, which decreases the performance link range and data quality. The proposed system in this research is a combination of DWDM and MIMO approaches to address this issue. The research is based on Optisystem simulations with various weather reduction in many of FSO systems: the FSO-DWDM-SISO (FDS) scheme and the suggested FSO-Hybrid-DWDM-MIMO method (FHDM). FHDM technology has considerably enhanced connection distance, received power, scalability, and data speed. At a data rate of 500 Mb/s, an evaluation is made between the suggested method and the FDS with respect to quality-factor during varied weather reduction using different numbers of optical transmission beams. The results show that the FHDM system improves connection distance, received optical power, minimum bit error rate (BER), and highest quality-factor significantly during various weather conditions.

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Section: Wdmmentioning

confidence: 99%