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Author

Prathapasinghe Dharmawansa

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Preprint Sep 2026

Outage Analysis of RSMA-Enabled Terrestrial Users Under Co-Channel Interference from HAPS

It is demonstrated that the interference-to-signal power scaling is a key factor determining TN outage behavior, with jointly scaled HAPS interference leading to interference-limited performance and RSMA provides improved outage performance compared with non-orthogonal multiple access (NOMA), particularly in the presen...

Farjam Karim, N. H. Mahmood, Prathapasinghe Dharmawansa et al. · 0 citations
Preprint Sep 2026

Performance Analysis of HAPS-Assisted Downlink RSMA under Orthogonal and Full Frequency Reuse

Numerical results show that the optimal common stream power allocation depends on the transmit power, while inter-beam interference under frequency reuse introduces an outage floor absent under orthogonal allocation, providing practical design insights for HAPS-RSMA systems.

Farjam Karim, Prathapasinghe Dharmawansa, N. H. Mahmood et al. · 0 citations

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