Publication Type : Conference Proceedings
Publisher : 2019 International Conference on Advances in Computing and Communication Engineering (ICACCE),
Source : 2019 International Conference on Advances in Computing and Communication Engineering (ICACCE), p.1-6 (2019)
Url : https://doi.org/10.1109/ICACCE46606.2019.9079984
Keywords : attenuation, laser, photodetector, Range, underwater communication
Campus : Amritapuri
School : School of Engineering
Department : Electronics and Communication
Year : 2019
Abstract : This paper presents an estimate of underwater optical communication (UWOC) range, using PIN and avalanche photodetectors (APDs). In this simulation-based study, the maximum range while transmitting high-quality video at 6Mbps speed is estimated as 520m in Pure Sea water, 65m in Clear Ocean and 44m in Coastal waters, when using a 100mW laser and APD. The channel here is modeled to include the effect of attenuation and noise. This work quantifies the benefits of using an adaptive system where the wavelength (blue, blue-green and green) of transmission and modulation scheme is changed based on water transmission. Wavelength adaptation according to varying water transmission was found to provide 16 to 40dB advantage in SNR, compared to a system with fixed wavelength, in different waters. A recommendation for wavelength adaptable transmitter design is made based on this. This study assumes the current state of the art in commercially available components.
Cite this Research Publication : M. P. A. Das, P. Arjun, A. S. Bhaskaran, P. S. Aravind, T. R. Aswin, and Viswas Sadasivan, “Estimation of maximum range for underwater optical communication using PIN and avalanche photodetectors”, 2019 International Conference on Advances in Computing and Communication Engineering (ICACCE). pp. 1-6, 2019.