Mikael Coldrey

Forskare at Department of Signals and Systems, Signal Processing

Dr. Mikael Coldrey is Adjunct Associate Professor in Signal Processing and he works since 2006 for Ericsson Research, Ericsson AB, Sweden, where he currently holds a Senior Researcher position. He works with research and project management in the areas of signal processing and communications systems with special interest in advanced antenna systems for future 5G mobile communications and wireless backhaul.

Source: chalmers.se

Projects

2015–2020

Massive MIMO systems with low-resolution converters

Giuseppe Durisi Department of Signals and Systems, Communication Systems
Mikael Coldrey Department of Signals and Systems, Signal Processing
Swedish Foundation for Strategic Research (SSF)

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Publications

2016

Adaptive Multicell 3-D Beamforming in Multiantenna Cellular Networks

Nima Seifi, R. W. Heath, Mikael Coldrey et al
IEEE Transactions on Vehicular Technology. Vol. 65 (8), p. 6217-6231
Scientific journal article - peer reviewed
2016

IQ Imbalance in Multiuser Systems: Channel Estimation and Compensation

Nikolaos Kolomvakis, Michail Matthaiou, Mikael Coldrey et al
IEEE Transactions on Communications. Vol. 64 (7), p. 3039-3051
Scientific journal article - peer reviewed
2015

Massive MIMO with IQ Imbalance: Performance analysis and compensation

Nikolaos Kolomvakis, Michail Matthaiou, Jingya Li et al
IEEE International Conference on Communications, ICC 2015, London, United Kingdom, 8-12 June 2015, p. 1703-1709
Conference paper - peer reviewed
2015

One-Bit Massive MIMO: Channel Estimation and High-Order Modulations

Sven Jacobsson, Giuseppe Durisi, Mikael Coldrey et al
2015 IEEE International Conference on Communication Workshop, ICCW 2015, p. 1304-1309
Conference paper - peer reviewed
2014

Massive MIMO in Sparse Channels

Nikolaos Kolomvakis, Michail Matthaiou, Mikael Coldrey et al
2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), p. 21-25
Conference paper - peer reviewed
2014

Impact of Residual Transmit RF Impairments on Training-Based MIMO Systems

Xinlin Zhang, Michail Matthaiou, Mikael Coldrey et al
IEEE International Conference on Communications, ICC 2014, Sydney, Australia, p. 4741-4746
Conference paper - peer reviewed
2014

On the MIMO Capacity with Residual Transceiver Hardware Impairments

Xinlin Zhang, Michail Matthaiou, Emil Björnson et al
IEEE International Conference on Communications, ICC 2014, Sydney, Australia, p. 5299-5305
Conference paper - peer reviewed
2012

Throughput optimization in MU-MIMO systems via exploiting bs antenna tilt

Nima Seifi, Mikael Coldrey, Tommy Svensson et al
2012 IEEE Globecom Workshops, GC Wkshps 2012, p. 653-657
Conference paper - peer reviewed
2012

Efficient Channel Estimation Techniques for Amplify and Forward Relaying Systems

Panagiota Lioliou, Mats Viberg, Mikael Coldrey et al
IEEE Transactions on Communications. Vol. 60 (11), p. 3150-3155
Scientific journal article - peer reviewed
2010

Self-Interference Suppression in Full-Duplex MIMO Relays

Panagiota Lioliou, Mats Viberg, Mikael Coldrey et al
44th Asilomar Conference on Signals, Systems and Computers, p. 658-662
Conference paper - peer reviewed
2010

An Efficient Signaling for Multi-mode Transmission in Multi-user MIMO

Nima Seifi, Tony Ottosson, Mats Viberg et al
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'10), Dallas, USA, Mar. 2010., p. 3402-3405
Conference paper - peer reviewed
2006

Generalization and Analysis of the Conventional Beamformer for Localization of Spatially Distributed Sources

Mikael Coldrey, Mats Viberg,
In Proc. 14th European Signal Processing Conference, EUSIPCO 2006
Conference paper - peer reviewed
2005

Training-Based MIMO Systems: Part I - Performance Comparison

Mikael Coldrey, Patrik Bohlin,
Report
2004

A Capacity Comparison between Time-Multiplexed and Superimposed Pilots

Mikael Coldrey, Patrik Bohlin,
Proc. 38th Asilomar Conference on Signals, Systems and Computers, Monterey, USA
Conference paper - peer reviewed
2004

Multiple-Antenna Channel Estimation Using Detected Symbol Information

Mikael Coldrey, Patrik Bohlin, Mats Viberg et al
PCC Workshop & Nordic Radio Symposium NRS '04, Oulu, Finland
Conference paper - peer reviewed
2004

Optimized Data Aided Training in MIMO Systems

Patrik Bohlin, Mikael Coldrey,
IEEE Vehicular Technology Conference, VTC 2004 Spring, Milan, Italy
Conference paper - peer reviewed
2004

Performance Evaluation of MIMO Communication Systems based Superimposed Pilots

Patrik Bohlin, Mikael Coldrey,
IEEE International Conference on Acoustics, Speech, and Signal Processing; Montreal, Que; Canada; 17 May 2004 through 21 May 2004. Vol. 4, p. IV-425-IV-428
Conference paper - peer reviewed
2003

Performance Evaluation of MIMO Wireless Communication Systems Employing Pilot Training for Channel Estimation

Mikael Coldrey, Patrik Bohlin,
PCC Workshop & Ericsson/TeliaSonera Research Days 2003, Stockholm, Sweden
Conference paper - peer reviewed
2003

Analysis of spectral-based localization of spatially distributed sources

Mikael Coldrey, Mats Viberg,
13th IFAC Symposium on System Identification, SYSID 2003, Rotterdam, Netherlands
Conference paper - peer reviewed
2003

On the use of beamforming for estimation of spatially distributed signals

Mikael Coldrey,
IEEE International Conference on Acoustics Speech and Signal Processing, ICASSP '03, Hong Kong, China, APR 06-10. Vol. 5, p. 369-372
Conference paper - peer reviewed
2002

Beamforming-based Estimators for Spatially Distributed Signals

Mikael Coldrey,
PCC Workshop & RadioVetenskap och Kommunikation, RVK '02, Stockholm, Sweden
Conference paper - peer reviewed
2002

Direction and Spread Estimation of Spatially Distributed Signals via the Power Azimuth Spectrum

Mikael Coldrey,
IEEE International Conference on Acoustics Speech and Signal Processing, ICASSP '02, Orlando, USA
Conference paper - peer reviewed