278 citations · 930 across the 15 of their papers we have counts for
5 papers · 1 filter
Distributed Coordinated Beamforming for Multi-cell Multigroup Multicast Systems
Harri Pennanen, Dimitrios Christopoulos, Symeon Chatzinotas +1
This paper considers coordinated multicast beamforming in a multi-cell wireless network. Each multiantenna base station (BS) serves multiple groups of single antenna users by gener…
Precoding in Multibeam Satellite Communications: Present and Future Challenges
Miguel Ángel Vázquez, Ana Pérez-Neira, Dimitrios Christopoulos +5
Whenever multibeam satellite systems target very aggressive frequency reuse in their coverage area, inter-beam interference becomes the major obstacle for increasing the overall sy…
Cellular-Broadcast Service Convergence through Caching for CoMP Cloud RANs
Symeon Chatzinotas, Dimitrios Christopoulos, Bjorn Ottersten
Cellular and Broadcast services have been traditionally treated independently due to the different market requirements, thus resulting in different business models and orthogonal f…
Coordinated Multibeam Satellite Co-location: The Dual Satellite Paradigm
Dimitrios Christopoulos, Shree Krishna Sharma, Symeon Chatzinotas +1
In the present article, a new system architecture for the next generation of satellite communication (SatComs) is presented. The key concept lies in the collaboration between multi…
Multicast Multigroup Beamforming for Per-antenna Power Constrained Large-scale Arrays
Dimitrios Christopoulos, Symeon Chatzinotas, Bjorn Ottersten
Large in the number of transmit elements, multi-antenna arrays with per-element limitations are in the focus of the present work. In this context, physical layer multigroup multica…