118 citations · 357 across the 21 of their papers we have counts for
10 papers · 1 filter
Precoding for Multi-Cell ISAC: from Coordinated Beamforming to Coordinated Multipoint and Bi-Static Sensing
Nithin Babu, Christos Masouros, Constantinos B. Papadias +1
This paper proposes a framework for designing robust precoders for a multi-input single-output (MISO) system that performs integrated sensing and communication (ISAC) across multip…
Optimization of Energy-Constrained IRS-NOMA Using a Complex Circle Manifold Approach
Mahmoud AlaaEldin, Emad Alsusa, Karim G. Seddik +2
This work investigates the performance of intelligent reflective surfaces (IRSs) assisted uplink non-orthogonal multiple access (NOMA) in energy-constrained networks. Specifically,…
Maximizing the Mutual Information of Multi-Antenna Links Under an Interfered Receiver Power Constraint
George K. Papageorgiou, Konstantinos Ntougias, Constantinos B. Papadias
Single-user multiple-input / multiple-output (SU-MIMO) communication systems have been successfully used over the years and have provided a significant increase on a wireless link'…
On the Robustness of Coordinated Beamforming to Uncoordinated Interference and CSI Uncertainty
George C. Alexandropoulos, Paul Ferrand, Constantinos B. Papadias
As network deployments become denser, interference arises as a dominant performance degradation factor. To confront with this trend, Long Term Evolution (LTE) incorporated features…
Advanced Coordinated Beamforming for the Downlink of Future LTE Cellular Networks
George C. Alexandropoulos, Paul Ferrand, Jean-Marie Gorce +1
Modern cellular networks in traditional frequency bands are notoriously interference-limited especially in urban areas, where base stations are deployed in close proximity to one a…
Reducing Complexity in Next-Generation MU-MIMO Systems
Konstantinos Ntougias, Dimitrios Ntaikos, Constantinos B. Papadias
Recently, several advanced multi-antenna radio communications technologies have emerged to meet the increased capacity demands in wireless multi-user networks. Despite their great…
Precoding for Multiuser MIMO Systems with Single-Fed Parasitic Antenna Arrays
George C. Alexandropoulos, Vlasis I. Barousis, Constantinos B. Papadias
Transmitter (TX) cooperation at various levels has been shown to increase the sum throughput of multiuser multiple-input multiple-output (MIMO) systems. In this paper we consider a…
A Reconfigurable Distributed Algorithm for K-user MIMO Interference Networks
George C. Alexandropoulos, Constantinos B. Papadias
It is already well-known that interference alignment (IA) achieves the sum capacity of the K-user interference channel at the high interference regime. On the other hand, it is int…
Interference Alignment: A one-sided approach
Hadi G. Ghauch, Constantinos B. Papadias
Interference Alignment (IA) is the process of designing signals in such a way that they cast overlapping shadows at their unintended receivers, while remaining distinguishable at t…
Space-time codes with controllable ML decoding complexity for any number of transmit antennas
Naresh Sharma, Pavan R. Pinnamraju, Constantinos B. Papadias
We construct a class of linear space-time block codes for any number of transmit antennas that have controllable ML decoding complexity with a maximum rate of 1 symbol per channel…