S. Shetty, P. N. Ramavath, and U. S. Acharya,"Performance analysis of underwater vertical wireless optical communication links using selection combining", Applied Optics, vol.62, pp.8229-8234, Optica Publishing Group 2023, 10.1364/AO.503360       Article

L. B. Kumar, P. N. Ramavath, D. Choudhari, P. Krishnan, Gd. G. Simha, and Vk. Jagadeesh,"BER analysis of a full-duplex relay-assisted BPSK-SIM based VLC system for indoor applications", Applied Optics, vol.62, pp.8366-8373, Optica Publishing Group 2023, 10.1364/AO.500213       Article

P. N. Ramavath, L. B. Kumar, P. Krishnan, and W. Chung,"Outage Probability Analysis of Variable and Fixed Gain Relay-Assisted Dual-Hop RF-FSO Links Using Space–time Block Code Users", in Proceedings of Second International Conference on Computational Electronics for Wireless Communications, Springer Nature Singapore, January 2023, 10.1007/978-981-19-6661-3_58       Inproceedings

P. N. Ramavath, U. S. Acharya, L. B. Kumar, P. Krishnan, and W. Chung,"BER Performance Analysis of Optical Wireless Communication System over Weak and Strong Underwater Turbulence Channels", in Proceedings of Second International Conference on Computational Electronics for Wireless Communications: ICCWC 2022, Springer Nature Singapore, January 2023, 10.1007/978-981-19-6661-3_56       Inproceedings

P. N. Ramavath, R. Mans, U. S. Acharya, and S. Shetty,"Performance of Orthogonal and Non-Orthogonal Space Time Block Code Through the Underwater Wireless Optical Channels", in 2023 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), pp.373-378, IEEE 2023, 10.1109/ANTS59832.2023.10469512       Inproceedings

P. N. Ramavath and Wan. Y. Chung,"Evaluation of reconfigurable intelligent surface-assisted underwater wireless optical communication system", Journal of Lightwave Technology, IEEE 2022, 10.1109/JLT.2022.3162627       Article

L. B. Kumar, P. N. Ramavath, P. Krishnan, A., A. Majumdar, and W. Chung,"RIS assisted triple-hop RF-FSO convergent with UWOC system", IEEE Access, vol.10, pp.66564-66575, IEEE 2022, 10.1109/ACCESS.2022.3185123       Article

L. B. Kumar, P. N. Ramavath, and P. Krishnan,"Performance analysis of multi-hop FSO convergent with UWOC system for security and tracking in navy applications", Optical and Quantum Electronics, vol.54, pp.327, Springer US 2022, 10.1007/s11082-022-03712-w       Article

P. N. Ramavath, P. Krishnan, and G.,"Reconfigurable intelligent surface-assisted free-space optical communication system under the influence of signal blockage for smart-city applications", Applied Optics, vol.61, pp.5957-5964, Optica Publishing Group 2022, 10.1364/AO.459053       Article

M. S. Sejan, R. P. Naik, B. G. Lee, and W. Chung,"A Bandwidth Efficient Hybrid Multilevel Pulse Width Modulation for Visible Light Communication System: Experimental and Theoretical Evaluation", IEEE Open Journal of the Communications Society, vol.3, pp.1991-2004, IEEE 2022, 10.1109/OJCOMS.2022.3217778       Article