1 citations · 2 across the 6 of their papers we have counts for
4 papers · 1 filter
Capacity and Algorithms for a Cognitive Network with Primary-Secondary User Cooperation
Athanasios Papadopoulos, Nestor D. Chatzidiamantis, Leonidas Georgiadis
In this work, we examine cognitive radio networks, where secondary users may act as relays for messages sent by the primary user, hence offering performance improvement of primary…
LP formulations for secrecy over erasure networks with feedback
Athanasios Papadopoulos, Laszlo Czap, Christina Fragouli
We design polynomial time schemes for secure message transmission over arbitrary networks, in the presence of an eavesdropper, and where each edge corresponds to an erasure channel…
Secret message capacity of a line network
Athanasios Papadopoulos, Laszlo Czap, Christina Fragouli
We investigate the problem of information theoretically secure communication in a line network with erasure channels and state feedback. We consider a spectrum of cases for the pri…
Multiuser Broadcast Erasure Channel with Feedback and Side Information, and Related Index Coding Results
A. Papadopoulos, L. Georgiadis
We consider the N-user broadcast erasure channel with public feedback and side information. Before the beginning of transmission, each receiver knows a function of the messages of…