73 citations · 139 across the 7 of their papers we have counts for
8 papers
Feedback is Good, Active Feedback is Better: Block Attention Active Feedback Codes
Emre Ozfatura, Yulin Shao, Amin Ghazanfari +3
Deep neural network (DNN)-assisted channel coding designs, such as low-complexity neural decoders for existing codes, or end-to-end neural-network-based auto-encoder designs are ga…
Learning to Perform Downlink Channel Estimation in Massive MIMO Systems
Amin Ghazanfari, Trinh Van Chien, Emil Björnson +1
We study downlink (DL) channel estimation in a multi-cell Massive multiple-input multiple-output (MIMO) system operating in a time-division duplex. The users must know their effect…
Enhanced Fairness and Scalability of Power Control Schemes in Multi-Cell Massive MIMO
Amin Ghazanfari, Hei Victor Cheng, Emil Björnson +1
This paper studies the transmit power optimization in multi-cell massive multiple-input multiple-output (MIMO) systems. Network-wide max-min fairness (NW-MMF) and network-wide prop…
A Fair and Scalable Power Control Scheme in Multi-cell Massive MIMO
Amin Ghazanfari, Hei Victor Cheng, Emil Björnson +1
This paper studies the transmit power optimization in a multi-cell massive multiple-input multiple-output (MIMO) system. To overcome the scalability issue of network-wide max-min f…
Model-based and Data-driven Approaches for Downlink Massive MIMO Channel Estimation
Amin Ghazanfari, Trinh Van Chien, Emil Björnson +1
We study downlink channel estimation in a multi-cell Massive multiple-input multiple-output (MIMO) system operating in time-division duplex. The users must know their effective cha…
Optimized Power Control for Massive MIMO with Underlaid D2D Communications
Amin Ghazanfari, Emil Björnson, Erik G. Larsson
In this paper, we consider device-to-device (D2D) communication that is underlaid in a multi-cell massive multiple-input multiple-output (MIMO) system and propose a new framework f…
Power Control for D2D Underlay in Multi-cell Massive MIMO Networks
Amin Ghazanfari, Emil Björnson, Erik G. Larsson
This paper proposes a new power control and pilot allocation scheme for device-to-device (D2D) communication underlaying a multi-cell massive MIMO system. In this scheme, the cellu…
Ambient RF Energy Harvesting in Ultra-Dense Small Cell Networks: Performance and Trade-offs
Amin Ghazanfari, Hina Tabassum, Ekram Hossain
In order to minimize electric grid power consumption, energy harvesting from ambient RF sources is considered as a promising technique for wireless charging of low-power devices. T…