963 citations · 4.2k across the 63 of their papers we have counts for
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A New Look at Dual-Hop Relaying: Performance Limits with Hardware Impairments
Emil Björnson, Michail Matthaiou, Mérouane Debbah
Physical transceivers have hardware impairments that create distortions which degrade the performance of communication systems. The vast majority of technical contributions in the…
Designing Multi-User MIMO for Energy Efficiency: When is Massive MIMO the Answer?
Emil Björnson, Luca Sanguinetti, Jakob Hoydis +1
Assume that a multi-user multiple-input multiple-output (MIMO) communication system must be designed to cover a given area with maximal energy efficiency (bit/Joule). What are the…
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…
Two-Way Relaying under the Presence of Relay Transceiver Hardware Impairments
Michail Matthaiou, Agisilaos Papadogiannis, Emil Björnson +1
Hardware impairments in physical transceivers are known to have a deleterious effect on communication systems; however, very few contributions have investigated their impact on rel…
Massive MIMO Systems with Non-Ideal Hardware: Energy Efficiency, Estimation, and Capacity Limits
Emil Björnson, Jakob Hoydis, Marios Kountouris +1
The use of large-scale antenna arrays can bring substantial improvements in energy and/or spectral efficiency to wireless systems due to the greatly improved spatial resolution and…
Hardware Impairments in Large-scale MISO Systems: Energy Efficiency, Estimation, and Capacity Limits
Emil Björnson, Jakob Hoydis, Marios Kountouris +1
The use of large-scale antenna arrays has the potential to bring substantial improvements in energy efficiency and/or spectral efficiency to future wireless systems, due to the gre…
Low-Complexity Channel Estimation in Large-Scale MIMO using Polynomial Expansion
Nafiseh Shariati, Emil Björnson, Mats Bengtsson +1
This paper considers pilot-based channel estimation in large-scale multiple-input multiple-output (MIMO) communication systems, also known as "massive MIMO". Unlike previous works…
Massive MIMO and Small Cells: Improving Energy Efficiency by Optimal Soft-Cell Coordination
Emil Björnson, Marios Kountouris, Mérouane Debbah
To improve the cellular energy efficiency, without sacrificing quality-of-service (QoS) at the users, the network topology must be densified to enable higher spatial reuse. We anal…