Aki Hakkarainen

Publication Activity (10 Years)

Years Active: 2013-2017
Publications (10 Years): 9

Top Topics

Extended Kalman Filters

Enabling Technologies

Top Venues

GLOBECOM Workshops

Publications

Mike Koivisto, Aki Hakkarainen, Mário Costa, Jukka Talvitie, Kari Heiska, Kari Leppänen, Mikko Valkama
Continuous high-accuracy radio positioning of cars in ultra-dense 5G networks. IWCMC (2017)
Mike Koivisto, Aki Hakkarainen, Mário Costa, Kari Leppänen, Mikko Valkama
Continuous device positioning and synchronization in 5g dense networks with skewed clocks. SPAWC (2017)
Mike Koivisto, Aki Hakkarainen, Mário Costa, Petteri Kela, Kari Leppänen, Mikko Valkama
High-Efficiency Device Positioning and Location-Aware Communications in Dense 5G Networks. IEEE Commun. Mag. 55 (8) (2017)
Mike Koivisto, Aki Hakkarainen, Mário Costa, Petteri Kela, Kari Leppänen, Mikko Valkama
High-Efficiency Device Positioning and Location-Aware Communications in Dense 5G Networks. CoRR (2016)
Mike Koivisto, Mário Costa, Aki Hakkarainen, Kari Leppänen, Mikko Valkama
Joint 3D Positioning and Network Synchronization in 5G Ultra-Dense Networks Using UKF and EKF. GLOBECOM Workshops (2016)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
Analysis and Augmented Spatial Processing for Uplink OFDMA MU-MIMO Receiver With Transceiver I/Q Imbalance and External Interference. IEEE Trans. Wirel. Commun. 15 (5) (2016)
Mike Koivisto, Mário Costa, Aki Hakkarainen, Kari Leppänen, Mikko Valkama
Joint 3D Positioning and Network Synchronization in 5G Ultra-Dense Networks Using UKF and EKF. CoRR (2016)
Janis Werner, Jun Wang, Aki Hakkarainen, Danijela Cabric, Mikko Valkama
Performance and Cramer-Rao Bounds for DoA/RSS Estimation and Transmitter Localization Using Sectorized Antennas. IEEE Trans. Veh. Technol. 65 (5) (2016)
Petteri Kela, Mário Costa, Jussi Turkka, Mike Koivisto, Janis Werner, Aki Hakkarainen, Mikko Valkama, Riku Jäntti, Kari Leppänen
Location Based Beamforming in 5G Ultra-Dense Networks. VTC Fall (2016)
Aki Hakkarainen, Janis Werner, Markku Renfors, Kapil R. Dandekar, Mikko Valkama
Transceiver I/Q imbalance and widely-linear spatial processing in large antenna systems. ISWCS (2015)
Yaning Zou, Orod Raeesi, Lauri Anttila, Aki Hakkarainen, Joao Vieira, Fredrik Tufvesson, Qimei Cui, Mikko Valkama
Impact of Power Amplifier Nonlinearities in Multi-User Massive MIMO Downlink. GLOBECOM Workshops (2015)
Aki Hakkarainen, Janis Werner, Mário Costa, Kari Leppänen, Mikko Valkama
High-Efficiency Device Localization in 5G Ultra-Dense Networks: Prospects and Enabling Technologies. VTC Fall (2015)
Janis Werner, Jun Wang, Aki Hakkarainen, Nikhil Gulati, Damiano Patron, Doug Pfeil, Kapil R. Dandekar, Danijela Cabric, Mikko Valkama
Sectorized Antenna-based DoA Estimation and Localization: Advanced Algorithms and Measurements. IEEE J. Sel. Areas Commun. 33 (11) (2015)
Janis Werner, Mário Costa, Aki Hakkarainen, Kari Leppänen, Mikko Valkama
Joint User Node Positioning and Clock Offset Estimation in 5G Ultra-Dense Networks. GLOBECOM (2015)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
Interference suppression with antenna arrays in OFDM systems under transceiver I/Q imbalance. CrownCom (2014)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
Analysis and Augmented Spatial Processing for Uplink OFDMA MU-MIMO Receiver under Transceiver I/Q Imbalance and External Interference. CoRR (2014)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
Precoded massive MU-MIMO uplink transmission under transceiver I/Q imbalance. GLOBECOM Workshops (2014)
Aki Hakkarainen, Janis Werner, Nikhil Gulati, Damiano Patron, Doug Pfeil, Henna Paaso, Aarne Mämmelä, Kapil R. Dandekar, Mikko Valkama
Reconfigurable antenna based doa estimation and localization in cognitive radios: Low complexity algorithms and practical measurements. CrownCom (2014)
Janis Werner, Aki Hakkarainen, Mikko Valkama
Estimating the primary user location and transmit power in cognitive radio systems using extended Kalman filters. WONS (2013)
Janis Werner, Jun Wang, Aki Hakkarainen, Mikko Valkama, Danijela Cabric
Primary user localization in cognitive radio networks using sectorized antennas. WONS (2013)
Janis Werner, Aki Hakkarainen, Mikko Valkama
Cramer-Rao Bounds for Hybrid RSS-DOA Based Emitter Location and Transmit Power Estimation in Cognitive Radio Systems. VTC Fall (2013)
Janis Werner, Jun Wang, Aki Hakkarainen, Mikko Valkama, Danijela Cabric
Primary user DoA and RSS estimation in cognitive Radio networks using sectorized antennas. CrownCom (2013)
Aki Hakkarainen, Janis Werner, Mikko Valkama
RF imperfections in antenna arrays: Response analysis and widely-linear digital beamforming. RWS (2013)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
RF-aware widely-linear beamforming and null-steering in cognitive Radio transmitters. CrownCom (2013)
Aki Hakkarainen, Janis Werner, Kapil R. Dandekar, Mikko Valkama
Widely-linear beamforming and RF impairment suppression in massive antenna arrays. J. Commun. Networks 15 (4) (2013)
Aki Hakkarainen, Janis Werner, Markku Renfors, Kapil R. Dandekar, Mikko Valkama
RF-Aware Widely-Linear MMSE Beamforming. ISWCS (2013)