Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
SHIVAJI SINHA1, KAMAL KISHORE UPADHYAY1, CHAKRESH KUMAR2,* , GHANENDRA KUMAR3,*
The growing demand for a high-speed Free Space Terrestrial Optical Link (FSTOL) under adverse atmospheric channel conditions is essential for next-generation wireless communication networks while retaining high throughput and reliability. In this research paper, we propose a cost-effective architecture of a high-speed multi-channel (32x40) Gb/s Dense Wavelength Division Multiplexing (DWDM)-based terrestrial optical link and investigate its performance under strong turbulent and different weather conditions such as haze, rain, and fog to identify the optimum link distance. Furthermore, the integration of higher-order modulation schemes like Quadrature Amplitude Modulation (16-QAM) along with the robustness of Orthogonal Frequency Division Multiplexing (OFDM) and DWDM multiplexing techniques helps to achieve a higher data rate and effective bandwidth utilization with low attenuation for longer link distances. The investigation dealt deep into performance metrics such as Bit Error Rate (BER), average received power, and optimum link distance in the adverse atmospheric weather scenario. The simulative result clearly shows the degraded signal quality below an acceptable threshold BER level of ≤ 2 × 10−3 at Optical Signal to Noise Ratio (OSNR) of 17 dB for the transmission range beyond 2 km, 0.5 km, and 0.4 km under dense haze, heavy rain, and dense fog conditions.
Atmospheric Turbulence, Bit Error Rate (BER), Free Space Terrestrial Optical Link (FSTOL), Eye diagram, Hermite Gaussian (HG), Mode division multiplying (MDM), Orthogonal Frequency Division Multiplexing (OFDM), Optical Signal to Noise Ratio (OSNR), Quadrature Amplitude Modulation (QAM).
SHIVAJI SINHA, KAMAL KISHORE UPADHYAY, CHAKRESH KUMAR, GHANENDRA KUMAR, Impact analysis of adverse climate on long-haul 1280 Gb/s, hybrid multiplexed FST optical link, Optoelectronics and Advanced Materials - Rapid Communications, 19, 1-2, January-February 2025, pp.84-94 (2025).
Submitted at: Oct. 23, 2024
Accepted at: Feb. 3, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.