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Author

Saman Atapattu

3 papers indexed here

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Sep 2026

Rydberg Atomic Receiver for Quantum-Enhanced Underwater Wireless Optical Communications

This paper introduces the first Rydberg atomic quantum receiver (RAQR) for underwater wireless optical communications (UWOC). Unlike conventional RF-oriented Rydberg receivers, the proposed architecture exploits direct optical excitation of an atomic transition, enabling a compact threelevel configuration in which the...

Lahiru Shyamal, Tharindu Udupitiya, Saman Atapattu et al. · 0 citations
Aug 2026

Flexible Duplexing for Multi-User Distributed MIMO Networks

Distributed MIMO networks can improve coverage and reliability through spatial diversity, but their performance is often limited by external interference and fixed duplex operation. This paper develops an interference-aware distributed MIMO framework that integrates flexible duplexing (FlexD) with maximum ratio transmi...

Yomali Lokugama, Charith Dissanayake, Saman Atapattu et al. · 0 citations
Open access Aug 2026

Pseudo-Noise Superposition for Finite-Alphabet Physical Layer Security

The results show that, at sufficiently high signal-tonoise ratio (SNR), the information rate becomes largely insensitive to PN power allocation, enabling near-perfect secrecy with M - QAM modulation-highlighting a key departure from Shannoncapacity-based secrecy analyses and underscoring the practicality of finite-alph...

Fernando Moya Caceres, C. Divarathne, Ya-Peng Xie et al. · 0 citations

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