19 citations · 162 across the 36 of their papers we have counts for
6 papers · 1 filter
Q-SPARSE: Quantum Subspace Projection for Near-Field Angle-Range Spectrum Estimation
Mostafizur Rahaman Laskar, Sajad Daei, Gabor Fodor +1
Near-field wavefront curvature enables joint angle-range localization, but exploiting it entails repeated covariance-eigenspace tests over a two-dimensional spherical manifold. We…
A Mathematical Theory of Near-Field Super-Resolution
Sajad Daei, Gabor Fodor, Mikael Skoglund
Finite-aperture near-field sensing leads to a super-resolution geometry fundamentally different from the translation-invariant Fourier setting. In the Fresnel regime, wavefront cur…
Sparse Discrete Laplace and Gaussian Mechanisms under Local Differential Privacy
Amirreza Zamani, Sajad Daei, Parastoo Sadeghi +1
We study sparse locally private channels of the form where the admissible output set is allowed to depend on the private input …
Living Off the Grid: Continuous Range-Angle Super-Resolution for Near-Field XL-MIMO
Sajad Daei, Gabor Fodor, Mikael Skoglund
Near-field extremely large multiple input multiple output (XL-MIMO) breaks the assumptions that make classical super-resolution effective: the receiver acquires only a limited set…
Convexity Meets Curvature: Lifted Near-Field Super-Resolution
Sajad Daei, Gábor Fodor, Mikael Skoglund
Extra-large apertures, high carrier frequencies, and integrated sensing and communications (ISAC) are pushing array processing into the Fresnel region, where spherical wavefronts i…
Sparse Point-wise Privacy Leakage: Mechanism Design and Fundamental Limits
Amirreza Zamani, Sajad Daei, Parastoo Sadeghi +1
We study an information-theoretic privacy mechanism design problem, where an agent observes useful data that is arbitrarily correlated with sensitive data , and design discl…