Publications
Large-scale antenna systems and massive machine type communications Ghent University
SCATTER PHY : an open source physical layer for the DARPA spectrum collaboration challenge Ghent University University of Antwerp
DARPA, the Defense Advanced Research Projects Agency from the United States, has started the Spectrum Collaboration Challenge with the aim to encourage research and development of coexistence and collaboration techniques of heterogeneous networks in the same wireless spectrum bands. Team SCATTER has been participating in the challenge since its beginning, back in 2016. SCATTER's open-source software defined physical layer (SCATTER PHY) has been ...
Comparing f-OFDM and OFDM performance for MIMO systems considering a 5G scenario Ghent University
The advances mobile communications has seen in recent years has rendered the radio spectrum a limited and, hence, an expensive resource. Therefore, technologies that support unlicensed access to spectrum are needed. Therefore, the adoption of novel modulation schemes becomes of utmost importance to obtain better spectral-localization and reduce the OOBE (Out of Band Emission) inherent to OFDM (Orthogonal Frequency Division Multiplexing) and, ...
SC2 CIL : evaluating the spectrum voxel announcement benefits Ghent University
The Spectrum Collaboration Challenge (SC2) was started by DARPA in 2016 to further expand the research on spectrum usage efficiency, and mitigate the ever-growing problem of spectrum scarcity. Teams that participated in SC2 designed and developed wireless networks, called Collaborative Intelligent Radio networks (CIRNs), to compete with other teams' CIRNs. The scoring system was created to motivate maximizing both their own and other networks' ...
On the distribution of an effective channel estimator for multi-cell massive MIMO Ghent University
Accurate channel estimation is of utmost importance for massive MIMO systems to provide significant improvements in spectral and energy efficiency. In this work, we present a study on the distribution of a simple but yet effective and practical channel estimator for multi-cell massive MIMO systems suffering from pilot-contamination. The proposed channel estimator performs well under moderate to aggressive pilot contamination scenarios without ...
Performance analysis of large-scale MU-MIMO with a simple and effective channel estimator Ghent University
Accurate channel estimation is of utmost importance for massive MIMO systems that allow providing significant improvements in spectral and energy efficiency. In this work, we investigate the spectral efficiency performance and present a channel estimator for multi-cell massive MIMO systems subjected to pilot-contamination. The proposed channel estimator performs well under moderate to aggressive pilot contamination scenarios without prior ...