CORTEXA
← Browse

Shinya Sugiura

4 papers indexed

arxiveess.SP2026-07-18Cited by 5

Power-Domain-Multiplexed Precoded Faster-Than-Nyquist Signaling for NOMA Downlink

Prakash Chaki, Shinya Sugiura

In this paper, we propose a novel precoded faster-than-Nyquist (FTN) signaling scheme with power-domain-multiplexing in non-orthogonal multiple access (NOMA) downlink for tapping the joint benefits of high spectral efficiency and simultaneous multiuser connectivity. Non-orthogona…

View free PDFSource page
arxiveess.SP2026-07-16

SLIPT-Enabled Ground-to-UAV FSO Systems with Optical Reconfigurable Intelligent Surfaces

Luna Sugiyama, Phuc V. Trinh, Shinya Sugiura

This paper proposes an optical reconfigurable intelligent surface (ORIS)-assisted ground-to-unmanned aerial vehicle (UAV) free-space optical (FSO) communication system empowered by simultaneous lightwave information and power transfer (SLIPT). To overcome the line-of-sight (LoS)…

View free PDFSource page
arxiveess.SP2026-07-07

Iterative Optimization of Reconfigurable Intelligent Surface Aided Single-Carrier Spatial Modulation

Kentaro Nagaya, Shinya Sugiura

This paper proposes a novel cyclic-prefixed single-carrier transmission scheme that amalgamate a reconfigurable intelligent surface (RIS) with spatial modulation in the frequency-selective fading channel. The discrete-input continuous-output memoryless channel's~(DCMC) capacities…

View free PDFSource page