181 citations · 238 across the 8 of their papers we have counts for
9 papers
Mm-wave specific challenges in designing 5G transceiver architectures and air-interfaces
Mythri Hunukumbure, Jian Luo, Mario Castaneda +5
The mm-wave spectrum will be of significant importance to 5G mobile systems. There are multiple challenges in designing transceiver architectures and air interfaces in this spectru…
Impact of Major RF Impairments on mm-wave Communications using OFDM Waveforms
Yaning Zou, Per Zetterberg, Ulf Gustavsson +5
In this paper, we study the joint impact of three major RF im-pairments, namely, oscillator phase noise, power amplifier non-linearity and I/Q imbalance on the performance of a mm-…
Phase-Noise Mitigation in OFDM by Best Match Trajectories
Senay Negusse, Per Zetterberg, Peter Händel
This paper proposes a novel approach to phase-noise compensation. The basic idea is to approximate the phase-noise statistics by a finite number of realizations, i.e., a phase-nois…
Interference Alignment: Practical Challenges and Test-bed Implementation
Nima Najari Moghadam, Hamed Farhadi, Per Zetterberg +2
Data traffic over wireless communication networks has experienced a tremendous growth in the last decade, and it is predicted to exponentially increase in the next decades. Enablin…
Interference Alignment (IA) and Coordinated Multi-Point (CoMP) overheads and RF impairments: testbed results
Per Zetterberg
In this work we investigate the network MIMO techniques of interference alignment (IA) and fully adaptive joint transmission coordinated multipoint (CoMP) in an indoor very small c…
Interference Alignment (IA) and Coordinated Multi-Point (CoMP) with IEEE802.11ac feedback compression: testbed results
Per Zetterberg
We have implemented interference alignment (IA) and joint transmission coordinated multipoint (CoMP) on a wireless testbed using the feedback compression scheme of the new 802.11ac…
Optimal Coordinated Beamforming in the Multicell Downlink with Transceiver Impairments
Emil Björnson, Per Zetterberg, Mats Bengtsson
Physical wireless transceivers suffer from a variety of impairments that distort the transmitted and received signals. Their degrading impact is particularly evident in modern syst…
Capacity Limits and Multiplexing Gains of MIMO Channels with Transceiver Impairments
Emil Björnson, Per Zetterberg, Mats Bengtsson +1
The capacity of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transmit and receive antennas. This letter analyzes if this result holds when ther…
An Experimental Investigation of SIMO, MIMO, Interference-Alignment (IA) and Coordinated Multi-Point (CoMP)
Per Zetterberg, Nima N. Moghadam
In this paper we present experimental implementations of interference alignment (IA) and coordinated multi-point transmission (CoMP). We provide results for a system with three bas…