119 citations · 147 across the 11 of their papers we have counts for
5 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…
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…
Message-Passing Algorithms for Optimal Utilization of Cognitive Radio Networks
Hamed Mahmoudi, Georgios Rodolakis, Leonidas Georgiadis +1
Cognitive Radio has been proposed as a key technology to significantly improve spectrum usage in wireless networks by enabling unlicensed users to access unused resource. We presen…
Stable XOR-based Policies for the Broadcast Erasure Channel with Feedback
Sophia Athanasiadou, Marios Gatzianas, Leonidas Georgiadis +1
In this paper we describe a network coding scheme for the Broadcast Erasure Channel with multiple unicast stochastic flows, in the case of a single source transmitting packets to $…
Multiuser broadcast erasure channel with feedback - capacity and algorithms
Marios Gatzianas, Leonidas Georgiadis, Leandros Tassiulas
We consider the -user broadcast erasure channel with unicast sessions (one for each user) where receiver feedback is regularly sent to the transmitter in the form of ACK/NAC…