3 papers
eess.SP2026
On-Off Digital Noise Modulation with Fluid Antenna Systems over - Fading Channels
Daniel C. Araújo, André A. dos Anjos, Hugerles S. Silva +2
This letter proposes the integration of on-off digital noise (OODN) modulation with fluid antenna systems (FASs). A unified analytical framework is developed to evaluate the perfor…
gr-qc2025
Cosmological scalar and tensor perturbations with a scalar field: quadratic-order effective energy-momentum tensor
Inyong Cho
We introduce the scalar and tensor modes of the gravitational perturbation in the presence of a scalar field which describes inflation. We investigate the back-reaction of the pert…
gr-qc2024
Homogeneous spacetime with shear viscosity
Inyong Cho, Rajibul Shaikh
We study the homogeneous and anisotropic evolution of Bianchi type-I spacetime driven by perfect fluid with shear viscosity. We obtain exact solutions by considering the simplest f…