Estimated time dispersion and delay through free space optics transceiver communications performance signature in the presence of adverse atmospheric conditions

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发表日期：

2024年8月29日

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Kumutha Ragupathi,
Prabakaran Maruthamuthu Paramasivam,
Valluri Venkata Gopala Rao,
Megalan Leo Leon,
Ashok Raja,
Basina Hari Chandana,
Ramachandran Thandaiah Prabu,
Ahmed Nabih Zaki Rashed,
A. H. M. Iftekharul Ferdous

摘要

This paper indicated the estimated time dispersion and delay through free space optics transceiver communications performance signature in the presence of adverse atmospheric conditions. The estimated time dispersion/time delay is deeply studied through free space optics transceiver. The modulation techniques are clarified through this study are differential phase shift keying (DPSK), quadrature phase shift keying (QPSK), and quadrature amplitude modulation (QAM). The used optimum operating wavelength is 1550 nm for the free space link transmission. The study is employed with dense and light fog atmospheric weather through the free space transceiver communication system. The study emphasized that QPSK modulation scheme demonstrated the lowest signal scattering, attenuation losses and the highest received power with the data rates transmission performance signature. Scattering loss and atmospheric signal loss are demonstrated versus free space channel link at both the dense fog and light fog weather distribution through the use of different proposed modulation techniques. The percentage signal transmission is clarified versus free space channel link at the dense/light fog weather distribution through the use of proposed modulation techniques. Received power is studied versus free space channel link and operating system wavelength variations at the dense fog weather distribution through the employment of QAM, QPSK and DPSK modulation schemes.Query Optimum bit rate transmission, optimum link margin and optimum signal quality are demonstrated against operating system wavelength and free space channel link at the dense/light fog weather distribution through the employment of QPSK modulation scheme. As well as the signal propagation delay time is clarified against free space channel link at the light/dense fog weather distribution through the use of proposed modulation techniques.