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20062026
most citedOptimal Multiuser Transmit Beamforming: A Difficult Problem with a Simple Solution Structure

611 citations · 4.1k across the 145 of their papers we have counts for

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Showing 2012Show all

9 papers · 1 filter

cs.IT2012

MMSE Performance Analysis of Generalized Multibeam Satellite Channels

Dimitrios Christopoulos, Jesus Arnau, Symeon Chatzinotas +2

Aggressive frequency reuse in the return link (RL) of multibeam satellite communications (SatComs) is crucial towards the implementation of next generation, interactive satellite s…

cs.IT2012★ 1 cited

User Scheduling for Coordinated Dual Satellite Systems with Linear Precoding

Dimitrios Christopoulos, Symeon Chatzinotas, Bjorn Ottersten

The constantly increasing demand for interactive broadband satellite communications is driving current research to explore novel system architectures that reuse frequency in a more…

cs.IT2012

Multi-User Detection in Multibeam Mobile Satellite Systems: A Fair Performance Evaluation

Dimitrios Christopoulos, Symeon Chatzinotas, Jens Krause +1

Multi-User Detection (MUD) techniques are currently being examined as promising technologies for the next generation of broadband, interactive, multibeam, satellite communication (…

cs.IT2012

Eigenvalue Based Sensing and SNR Estimation for Cognitive Radio in Presence of Noise Correlation

Shree Krishna Sharma, Symeon Chatzinotas, Björn Ottersten

Herein, we present a detailed analysis of an eigenvalue based sensing technique in the presence of correlated noise in the context of a Cognitive Radio (CR). We use a Standard Cond…

cs.IT2012★ 160 cited

Optimality Properties, Distributed Strategies, and Measurement-Based Evaluation of Coordinated Multicell OFDMA Transmission

Emil Björnson, Niklas Jaldén, Mats Bengtsson +1

The throughput of multicell systems is inherently limited by interference and the available communication resources. Coordinated resource allocation is the key to efficient perform…

cs.IT2012★ 181 cited

Capacity Limits and Multiplexing Gains of MIMO Channels with Transceiver Impairments

Emil Björnson, Per Zetterberg, Mats Bengtsson +1

The capacity of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transmit and receive antennas. This letter analyzes if this result holds when ther…