278 citations · 469 across the 23 of their papers we have counts for
7 papers · 1 filter
On the Number of RF Chains and Phase Shifters, and Scheduling Design with Hybrid Analog-Digital Beamforming
Tadilo Endeshaw Bogale, Long Bao Le, Afshin Haghighat +1
This paper considers hybrid beamforming (HB) for downlink multiuser massive multiple input multiple output (MIMO) systems with frequency selective channels. For this system, first…
Wideband Sensing and Optimization for Cognitive Radio Networks with Noise Variance Uncertainty
Tadilo Endeshaw Bogale, Luc Vandendorpe, Long Bao Le
This paper considers wide-band spectrum sensing and optimization for cognitive radio (CR) networks with noise variance uncertainty. It is assumed that the considered wide-band cont…
Beamforming for Multiuser Massive MIMO Systems: Digital versus Hybrid Analog-Digital
Tadilo Endeshaw Bogale, Long Bao Le
This paper designs a novel hybrid (a mixture of analog and digital) beamforming and examines the relation between the hybrid and digital beamformings for downlink multiuser massive…
Sensing Throughput Tradeoff for Cognitive Radio Networks with Noise Variance Uncertainty
Tadilo Endeshaw Bogale, Luc Vandendorpe, Long Bao Le
This paper proposes novel spectrum sensing algorithm, and examines the sensing throughput tradeoff for cognitive radio (CR) networks under noise variance uncertainty. It is assumed…
Pilot Optimization and Channel Estimation for Multiuser Massive MIMO Systems
Tadilo Endeshaw Bogale, Long Bao Le
This paper proposes novel pilot optimization and channel estimation algorithm for the downlink multiuser massive multiple input multiple output (MIMO) system with decentralized…
Transceiver design for single-cell and multi-cell downlink multiuser MIMO systems
Tadilo Endeshaw Bogale
This thesis designs linear transceivers for the down link multiple user multiple input multiple output single-cell and multiple-cell systems. The transceivers are designed by assum…