258 citations · 443 across the 16 of their papers we have counts for
5 papers · 1 filter
Private Information Retrieval from Coded Databases with Colluding Servers
Ragnar Freij-Hollanti, Oliver Gnilke, Camilla Hollanti +1
We present a general framework for Private Information Retrieval (PIR) from arbitrary coded databases, that allows one to adjust the rate of the scheme according to the suspected n…
Well-Rounded Lattices for Coset Coding in MIMO Wiretap Channels
Oliver W. Gnilke, Amaro Barreal, Alex Karrila +3
The concept of well-rounded lattices has recently found important applications in the setting of a fading single-input single-output (SISO) wiretap channel. It has been shown that,…
Well-Rounded Lattices for Reliability and Security in Rayleigh Fading SISO Channels
Oliver Wilhelm Gnilke, Ha Thanh Nguyen Tran, Alex Karrila +1
For many wiretap channel models asymptotically optimal coding schemes are known, but less effort has been put into actual realizations of wiretap codes for practical parameters. Bo…
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…
Private Information Retrieval from MDS Coded Data in Distributed Storage Systems
Razan Tajeddine, Oliver W. Gnilke, Salim El Rouayheb
The problem of providing privacy, in the private information retrieval (PIR) sense, to users requesting data from a distributed storage system (DSS), is considered. The DSS is code…