102 citations · 194 across the 25 of their papers we have counts for
6 papers · 1 filter
Flexible Unsupervised Learning for Massive MIMO Subarray Hybrid Beamforming
Hamed Hojatian, Jérémy Nadal, Jean-François Frigon +1
Hybrid beamforming is a promising technology to improve the energy efficiency of massive MIMO systems. In particular, subarray hybrid beamforming can further decrease power consump…
Space-Frequency Block Code for MIMO-OFDM Communication Systems with Reconfigurable Antennas
Vida Vakilian, Jean-Francois Frigon, Sebastien Roy
We propose a space-frequency (SF) block coding scheme for a multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system using antennas with recon…
Robust Cooperative Spectrum Sensing Scheduling Optimization in Multi-Channel Dynamic Spectrum Access Networks
Chun-Hao Liu, Arash Azarfar, Jean-Francois Frigon +2
Dynamic spectrum access (DSA) enables secondary networks to find and efficiently exploit spectrum opportunities. A key factor to design a DSA network is the spectrum sensing algori…
Fast Heuristics for Power Allocation in Zero-Forcing OFDMA-SDMA Systems with Minimum Rate Constraints
Diego Perea-Vega, Andre Girard, Jean-Francois Frigon
We investigate in this paper the optimal power allocation in an OFDM-SDMA system when some users have minimum downlink transmission rate requirements. We first solve the unconstrai…
Dual-Based Bounds for Resource Allocation in Zero-forcing Beamforming OFDMA-SDMA Systems
Diego Perea-Vega, Jean-Francois Frigon, Andre Girard
We consider multi-antenna base stations using orthogonal frequency division multiple access and space division multiple access techniques to serve single-antenna users. Some users,…
A Dual-based Method for Resource Allocation in OFDMA-SDMA Systems with Minimum Rate Constraints
Diego Perea-Vega, André Girard, Jean-François Frigon
We consider multi-antenna base stations using orthogonal frequency-division multiple access (OFDMA) and space division multiple access (SDMA) techniques to serve single antenna use…