NALLAGONDA VIJAYA RATNAM
@pscmr.ac.in
Associate Professor and Electronics and Communication Engineering
PSCMR college of Engineering and Technology
My intense desire is to work with an esteemed organization, where I could be on my better way to visualize bright career by serving the concern with my able professional skills and for that I will always keep improving my skills through regular studying in the concerned field.
EDUCATION
Ph.D National Institute of Technology Karnataka (NITK)
M.Tech National Institute of Technology Rourkela (NITR)
B.Tech (ECE) GEC Engineering College, Gudlavalleru,
JNTU Kakinada
RESEARCH, TEACHING, or OTHER INTERESTS
Electronic, Optical and Magnetic Materials, Signal Processing, Computer Networks and Communications, Computer Science Applications
FUTURE PROJECTS
Development of a UAV equipped FSO transceiver system (10Gbps) for next generation wireless communication systems.
The rapid growth of data-intensive applications and the evolution toward next-generation (5G/6G) wireless networks demand ultra-high-capacity, low-latency, and flexible communication solutions. Unmanned Aerial Vehicle (UAV)–equipped Free-Space Optical (FSO) communication systems have emerged as a promising technology to address these requirements by combining the mobility of UAVs with the high bandwidth and security of optical wireless links. This work presents the development and performance evaluation of a UAV-mounted FSO transceiver system capable of supporting data rates up to 10 Gbps for next-generation wireless communication systems. The proposed system architecture integrates a compact optical transceiver, high-speed modulation and detection modules, and a lightweight pointing, acquisition, and tracking (PAT) mechanism to maintain reliable line-of-sight links under UAV mobility. Atmospheric channel impairments such as turbulence-induced fading, beam divergence, and pointing err
Applications Invited
funding
Scopus Publications
Scopus Publications
Vijaya Ratnam Nallagonda, N. Siva Nagaraju, Dantuluri Bhavani, Rajesh Gogineni, Suneel Mudunuru, and Prabu Krishnan
Walter de Gruyter GmbH
Abstract Recent advances in optical communication technology have enabled users to access high-data services on maritime links using the unmanned aerial vehicles (UAVs)-based free space optical (FSO) system. However, ensuring reliable data communication for maritime links is a significant challenge due to harsh weather conditions. To address the growing demand for maritime links, we have proposed a maritime UAV-based FSO communication system that can support high-speed data rates and provide extended communication coverage. This paper investigates various aspects of maritime UAV-based FSO systems, including the basic architecture, different channel characteristics, and application scenarios. The paper also includes an analysis of the outage probability of the Inter UAV-based FSO communication system, considering the lognormal distributed channel model for the maritime Inter UAV-based FSO link with heterodyne detection (hd). Additionally, it presents an accurate analytical channel model between UAVs. It compares analytical and simulation results, considering maritime turbulence, pointing error, and hovering UAV fluctuations.
Thotakura Sushma, Rajesh Gogineni, Nallagonda Vijaya Ratnam, Sadineni Ramesh Babu, Sunitha Mandava, and Paruchuri Venkata Krishna Kanth
The Electromagnetics Academy
Vijaya Ratnam and Prabu Krishnan
Springer Science and Business Media LLC
Vijaya Ratnam Nallagonda and Prabu Krishnan
Springer Science and Business Media LLC
Vijaya Ratnam Nallagonda and Prabu Krishnan
Springer Science and Business Media LLC
RECENT SCHOLAR PUBLICATIONS
Publications
1. Nallagonda, Vijaya Ratnam, and Prabu Krishnan. "Performance analysis of FSO based inter-UAV communication Optical and Quantum Electronics 53.4 (2021): 1-20. :-Published (SCI).
2. Nallagonda, Vijaya Ratnam, and Prabu Krishnan. " Bit error rate analysis of polarization shift keying based free space optical link over different weather conditions for inter unmanned aerial vehicles Optical and Quantum Electronics Doi:10.1007/s11082-021-03188-0: -Published (SCI).
3. Nallagonda, Vijaya Ratnam, and Prabu Krishnan. " BER Analysis of Ground-to-HAP Free-Space Optical Communications Using Coded POLSK in Various Weather Optical and Quantum Electronics: - Published (SCI).
4. Nallagonda, Vijaya Ratnam, and Prabu Krishnan A performance study of an Inter-UAV-based Free Space Optical (FSO) system in the maritime environment. – Published(Scopus)
5. Thotakura Sushma, Rajesh Gogineni, Nallagonda Vijaya Ratnam, Sadineni Ramesh Babu, *, Sunitha Mandava, and Paruchuri V. Krishna Kanth “ A Miniaturized Quad Port Highly Isolated Triple Band Notched UWB-MIMO Diversity Antenna: - Published(Scopus).
6. Nallagonda, V.R., Bhukya, R., Sridhar, D. et al. Swarm UAVS with FSO systems: a performance analysis using differential chaos shift keying modulation. Opt Quant Electron 57, 587 (2025). : - Published (SCI)
7. Rajesh Gogineni, Umakanth, N., Ratnam, N.V. et al. Regional Variability of Lightning Activity in Pakistan: The Role of Atmospheric and Cloud Properties.