202 citations · 594 across the 70 of their papers we have counts for
6 papers · 1 filter
Preliminary Results on 3D Channel Modeling: From Theory to Standardization
Abla Kammoun, Hajer Khanfir, Zwi Altman +2
Three dimensional beamforming (3D) (also elevation beamforming) is now gaining a growing interest among researchers in wireless communication. The reason can be attributed to its p…
Linear Precoding Based on Polynomial Expansion: Reducing Complexity in Massive MIMO
Axel Müller, Abla Kammoun, Emil Björnson +1
Large-scale multi-user multiple-input multiple-output (MIMO) techniques have the potential to bring tremendous improvements for future communication systems. Counter-intuitively, t…
Linear Precoding Based on Polynomial Expansion: Large-Scale Multi-Cell MIMO Systems
Abla Kammoun, Axel Müller, Emil Björnson +1
Large-scale MIMO systems can yield a substantial improvement in spectral efficiency for future communication systems. Due to the finer spatial resolution achieved by a huge number…
Performance Analysis and Optimal Power Allocation for Linear Receivers Based on Superimposed Training
Abla Kammoun, Karim Abed-Meraim
In this paper, we derive a performance comparison between two training-based schemes for Multiple-Input Multiple-Output (MIMO) systems. The two schemes are thetime-division multipl…
Quasi-convexity of the asymptotic channel MSE in regularized semi blind estimation
Abla Kammoun, Karim Abed-Meraim, Sofiene Affes
In this paper, the quasi-convexity of a sum of quadratic fractions in the form is demonstrated where and are stri…
Robust blind methods using quasi norms
Abla Kammoun
It was shown in a previous work that some blind methods can be made robust to channel order overmodeling by using the or quasi-norms. However, no theoretical argu…