11 papers
Pseudo-Noise Superposition for Finite-Alphabet Physical Layer Security
Fernando Moya Caceres, Chamath Divarathne, Yapeng Xie +4
Physical-layer security based on pseudo-noise (PN) superposition is a promising approach for mitigating eavesdropping in future wireless systems. However, under Shannon's capacity…
Hybrid Six-Level Rydberg Atomic Quantum Receiver for Multi-Band Wireless Communications
Lahiru Shyamal, Harini Hapuarachchi, Saman Atapattu +1
The paper proposes a hybrid six-level Rydberg atomic quantum receiver that combines parallel and cascaded RF coupling to enable four simultaneous RF channels in a single vapor cell…
Performance Analysis of Flexible Duplex Inter-Satellite Links in LEO Networks
Yomali Lokugama, Charith Dissanayake, Saman Atapattu +1
This paper investigates energy-efficient inter-satellite communication in Low Earth Orbit (LEO) networks, where satellites exchange both buffered and newly generated data through h…
Standard Condition Number-Based Detection for MIMO ISAC Systems under Noise Uncertainty
Alex Obando, Tharindu Udupitiya, Saman Atapattu +1
This paper presents a unified analytical and optimization framework for Standard Condition Number (SCN)-based detection in MIMO Integrated Sensing and Communication (ISAC) systems…
Backscatter-Assisted High-Speed Rail Communications in Straight Tunnel Environments: Effects of Tag Number and Phase Control
Yunping Mu, Gongpu Wang, Ruisi He +3
Backscatter communication is a promising technology to enhance the signal strength received by the receiver in straight tunnel environments. The impact of the number of tags and th…
Performance Analysis for Multi-User Holographic MIMO Downlink with Matched Filter Precoding
Gayathri Shekar, Saman Atapattu, Prathapasinghe Dharmawansa +1
Holographic MIMO (HMIMO) has emerged as a promising solution for future wireless systems by enabling ultra-dense, spatially continuous antenna deployments. While prior studies have…