B. K. Levidala, P. N. Ramavath, and P. Krishnan,"High-speed long-range multihop underwater wireless optical communication convergent with free-space optical system for optical internet of underwater things and underwater optical wireless sensor network applications", Optical Engineering, vol.61, pp.076107-076107, Society of Photo-Optical Instrumentation Engineers 2022, 10.1117/1.OE.61.7.076107       Article

P. N. Ramavath, Gd. G. Simha, and P. Krishnan,"Wireless-optical-communication-based cooperative IoT and IoUT system for ocean monitoring applications", Applied Optics, vol.60, pp.9067-9073, Optica Publishing Group, October 2021, 10.1364/AO.435887       Article

B. K. Levidala, P. N. Ramavath, and P. Krishnan,"Performance enhancement using multiple input multiple output in dual-hop convergent underwater wireless optical communication–free-space optical communication system under strong turbulence with pointing errors", Optical Engineering, vol.60, pp.106106-106106, Society of Photo-Optical Instrumentation Engineers, October 2021, 10.1117/1.OE.60.10.106106       Article

P. N. Ramavath, S. A. Udupi, and P. Krishnan,"High-speed and reliable underwater wireless optical communication system using multiple-input multiple-output and channel coding techniques for IoUT applications", Optics Communications, vol.461, pp.125229, Elsevier 2020, 10.1016/j.optcom.2019.125229       Article

P. N. Ramavath, S. A. Udupi, and P. Krishnan,"Co-operative RF-UWOC link performance over hyperbolic tangent log-normal distribution channel with pointing errors", Optics Communications, vol.469, pp.125774, Elsevier, August 2020, 10.1016/j.optcom.2020.125774       Article

A. Uppalapati, P. N. Ramavath, and P. Krishnan,"Analysis of M-QAM Modulated Underwater Wireless Optical Communication System for Reconfigurable UOWSNs Employed in River Meets Ocean Scenario", IEEE Transactions on Vehicular Technology, vol.69, no.12, pp.15244-15252, IEEE, November 2020, 10.1109/TVT.2020.3037342       Article

P. N. Ramavath, S. A. Udupi, and P. Krishnan,"Experimental demonstration and analysis of underwater wireless optical communication link: Design, BCH coded receiver diversity over the turbid and turbulent seawater channels", Microwave and Optical Technology Letters, vol.62, pp.2207-2216, John Wiley & Sons, Inc., June 2020, 10.1002/mop.32311       Article

P. N. Ramavath, A. Kumar, S. S. Godkhindi, and U. S. Acharya,"Experimental studies on the performance of underwater optical communication link with channel coding and interleaving", CSI Transactions on ICT, vol.6, pp.65-70, Springer India, March 2018, 10.1007/s40012-017-0179-3       Article