5 citations · 6 across the 5 of their papers we have counts for
6 papers
Private Computation of Systematically Encoded Data with Colluding Servers
David Karpuk
Private Computation (PC), recently introduced by Sun and Jafar, is a generalization of Private Information Retrieval (PIR) in which a user wishes to privately compute an arbitrary…
t-Private Information Retrieval Schemes Using Transitive Codes
Ragnar Freij-Hollanti, Oliver W. Gnilke, Camilla Hollanti +3
This paper presents private information retrieval (PIR) schemes for coded storage with colluding servers, which are not restricted to maximum distance separable (MDS) codes. PIR sc…
Lattice coding for Rician fading channels from Hadamard rotations
Alex Karrila, Niko R. Väisänen, David Karpuk +1
In this paper, we study lattice coding for Rician fading wireless channels. This is motivated in particular by preliminary studies suggesting the Rician fading model for millimeter…
Nested Lattice Codes for Vector Perturbation Systems
David A. Karpuk, Amaro Barreal, Oliver W. Gnilke +1
Vector perturbation is an encoding method for broadcast channels in which the transmitter solves a shortest vector problem in a lattice to create a perturbation vector, which is th…
A Low-Complexity Message Recovery Method for Compute-and-Forward Relaying
Amaro Barreal, Joonas Pääkkönen, David Karpuk +2
The Compute-and-Forward relaying strategy achieves high computation rates by decoding linear combinations of transmitted messages at intermediate relays. However, if the involved r…
Nonasymptotic Probability Bounds for Fading Channels Exploiting Dedekind Zeta Functions
Camilla Hollanti, Emanuele Viterbo, David Karpuk
In this paper, new probability bounds are derived for algebraic lattice codes. This is done by using the Dedekind zeta functions of the algebraic number fields involved in the latt…