963 citations · 4.2k across the 63 of their papers we have counts for
11 papers · 1 filter
Random Access Protocol for Massive MIMO: Strongest-User Collision Resolution (SUCR)
Emil Björnson, Elisabeth de Carvalho, Erik G. Larsson +1
Wireless networks with many antennas at the base stations and multiplexing of many users, known as Massive MIMO systems, are key to handle the rapid growth of data traffic. As the…
Energy-Efficient Load-Adaptive Massive MIMO
M. M. Aftab Hossain, Cicek Cavdar, Emil Björnson +1
Massive MIMO is a promising technique to meet the exponential growth of global mobile data traffic demand. However, contrary to the current systems, energy consumption of next gene…
Three Practical Aspects of Massive MIMO: Intermittent User Activity, Pilot Synchronism, and Asymmetric Deployment
Emil Björnson, Erik G. Larsson
This paper considers three aspects of Massive MIMO (multiple-input multiple-output) communication networks that have received little attention in previous works, but are important…
Random Access for Massive MIMO Systems with Intra-Cell Pilot Contamination
Elisabeth de Carvalho, Emil Bjornson, Erik G. Larsson +1
Massive MIMO systems, where the base stations are equipped with hundreds of antenna elements, are an attractive way to attain unprecedented spectral efficiency in future wireless n…
Adaptive Pilot Clustering in Heterogeneous Massive MIMO Networks
Rami Mochaourab, Emil Björnson, Mats Bengtsson
We consider the uplink of a cellular massive MIMO network. Acquiring channel state information at the base stations (BSs) requires uplink pilot signaling. Since the number of ortho…
Achievable Rate of Rician Large-Scale MIMO Channels with Transceiver Hardware Impairments
Jiayi Zhang, Linglong Dai, Xinling Zhang +2
Transceiver hardware impairments (e.g., phase noise, in-phase/quadrature-phase (I/Q) imbalance, amplifier non-linearities, and quantization errors) have obvious degradation effects…
On the Feasibility of Wireless Energy Transfer Using Massive Antenna Arrays
Salil Kashyap, Emil Björnson, Erik G. Larsson
We illustrate potential benefits of using massive antenna arrays for wireless energy transfer (WET). Specifically, we analyze probability of outage in WET over fading channels when…
Energy Efficiency and Sum Rate when Massive MIMO meets Device-to-Device Communication
Serveh Shalmashi, Emil Björnson, Marios Kountouris +2
This paper considers a scenario of short-range communication, known as device-to-device (D2D) communication, where D2D users reuse the downlink resources of a cellular network to t…
ML Detection in Phase Noise Impaired SIMO Channels with Uplink Training
Antonios Pitarokoilis, Emil Björnson, Erik G. Larsson
The problem of maximum likelihood (ML) detection in training-assisted single-input multiple-output (SIMO) systems with phase noise impairments is studied for two different scenario…
Deploying Dense Networks for Maximal Energy Efficiency: Small Cells Meet Massive MIMO
Emil Björnson, Luca Sanguinetti, Marios Kountouris
How would a cellular network designed for maximal energy efficiency look like? To answer this fundamental question, tools from stochastic geometry are used in this paper to model f…
Optimal Detection in Training Assisted SIMO Systems with Phase Noise Impairments
Antonios Pitarokoilis, Emil Björnson, Erik G. Larsson
In this paper, the problem of optimal maximum likelihood detection in a single user single-input multiple-output (SIMO) channel with phase noise at the receiver is considered. The…