Kalle Ruttik
Vanhempi Yliopistolehtori
Senior University Lecturer
T412 Department of Information and Communications Engineering
Full researcher profile
https://research.aalto.fi/...
Email
kalle.ruttik@aalto.fi
Postal address
Maarintie 8
02150 Espoo
Finland
Honors and awards
Best Demonstration Award
The Best Demonstration Award of 2025 4th International Conference on 6G Networking
Award or honor granted for academic or artistic career
Department of Information and Communications Engineering
Dec 2025
Most downloaded paper
Most downloaded paper of IEEE Journal of Radio Frequency Identification
Award or honor granted for a specific work
Department of Information and Communications Engineering
Dec 2024
Research groups
- Communication Engineering
Publications
Demo: Energy Neutral Backscatter Device Utilizing High Performance Commercial Components
Kalle Koskinen, Jingyi Liao, Kalle Ruttik, Riku Jäntti
2026
Proceedings of the 4th International Conference on 6G Networking, 6GNet 2025
Investigating Carboxymethyl Cellulose in Aerosol Jet Printed Microwave Humidity Sensors
Madhawa Basnayaka, Riku Jantti, Kalle Ruttik, Juho Kerminen, Katherine Gallegos-Rosas, Caterina Soldano
2025
2025 16th German Microwave Conference, GeMiC 2025
Unlicensed RAN Integration with 5G for Time-Sensitive Networking
Jose Costa-Requena, Kalle Ruttik, Riku Jantti
2025
Proceedings of IEEE/IFIP Network Operations and Management Symposium 2025, NOMS 2025
EWDC: Integrating DECT-2020 With Wi-Fi for Enhanced Wireless Direct Connectivity
Yongchao Dang, Quang Ngo, Roni Fagerholm, Veli-Matti Rantanen, Kalle Ruttik, Riku Jäntti
2025
IEEE Internet of Things Journal
Integration of Backscatter-based Ambient Internet of Things to Cellular Communication Systems
Riku Jäntti, Jingyi Liao, Tianshu Zhang, Boxuan Xie, Muhammad Usman Sheikh, Kalle Ruttik, Giang Phan, Dinh Thuy Phan-Huy, Ayman Hassan
2025
IEEE Communications Standards Magazine
Li2BC: From Visible Light Communication to Ambient RF Backscatter
Kalle Koskinen, Boxuan Xie, Kalle Ruttik, Riku Jantti
2025
2025 16th German Microwave Conference, GeMiC 2025
Ambient Backscatter Communication in LTE Uplink Using Sounding Reference Signals
Jingyi Liao, Tianshu Zhang, Kalle Ruttik, Riku Jantti, Dinh Thuy Phan-Huy, Ayman M. Hassan, Zhu Han
2025
IEEE Internet of Things Journal
Data Assisted Backscatter Communications Using DECT-2020 NR+ as Ambient Signal
Jingyi Liao, Kalle Ruttik, Riku Jäntti, Zhu Han
2025
SPAWC 2025 - 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications - Proceedings
Starlink Ku-Band Downlink Based Ambient Backscatter Communication
Jingyi Liao, Kalle Ruttik, Riku Jäntti, Zhu Han
2025
SPAWC 2025 - 2025 IEEE 26th International Workshop on Signal Processing and Artificial Intelligence for Wireless Communications - Proceedings
Temperature sensing in harsh environments using resonant circuits
J. Lietzen, K. Ruttik, R. Jantti
2025
IEEE Sensors Journal
Zero-Energy Devices for 6G: Technical Enablers at a Glance
Onel Lopez, Ritesh Kumar Singh, Dinh Thuy Phan-Huy, Efstathios Katranaras, Nafiseh Mazloum, Kalle Ruttik, Riku Jantti, Hamza Khan, Osmel Rosabal, Pavlos Alexias, Prasoon Raghuwanshi, David Ruiz-Guirola, Bikramjit Singh, Andreas Hoglund, Dung Pham Van, Amirhossein Azarbahram, Jeroen Famaey
2025
IEEE Internet of Things Magazine
Demo: Toward Multi-Connectivity 6G IoT - Practical IoT Device-to-Core Integration
Quang Quoc Ngo, Kalle Ruttik, Dang Yongchao, Riku Jäntti, Jose Costa-Requena
2025
Proceedings of the 4th International Conference on 6G Networking, 6GNet 2025
5G Millimeter-wave Fixed Wireless Access: Optimizing Cost and Coverage with Antenna Height Variation using Point-Cloud Path Loss Prediction
Norshahida Saba, Jari Salo, Kalle Ruttik, Riku Jäntti
2025
IEEE Access
Radio Network Planning for 5G FWA at 3.5 GHz and 26 GHz: A Link- and Flow-Level Approach
Norshahida Saba, Pasi Lassila, Kalle Ruttik, Riku Jäntti, Jari Salo
2025
IEEE Access
Analysis of radio propagation with different antenna solutions at sub-THz band in an indoor (tee-junction) environment using ray tracing simulations
Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2025
Telecommunication Systems
MCU-Free Backscatter Communication with Light-Enabled Frequency Control for Ambient IoT
Boxuan Xie, Jari Lietzén, Kalle Koskinen, Lauri Mela, Kalle Ruttik, Riku Jäntti
2025
2025 4th International Conference on 6G Networking (6GNet)
Data Assistance Cellular Signal Based Ambient Backscatter Receiver
Jingyi Liao, Kalle Ruttik, Riku Jantti
2024
2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2024
Indoor Backscattering Communication by Using Commercial LTE Pilots
Jingyi Liao, Xiyu Wang, Kalle Koskinen, Tianshu Zhang, Kalle Ruttik, Riku Jäntti, Dinh Thuy Phan-Huy
2024
2024 IEEE 99th Vehicular Technology Conference, VTC2024-Spring 2024 - Proceedings
Measurement of Coded Backscatter Communication Utilizing Commercial LTE Ambient Signal
Jingyi Liao, Kalle Ruttik, Riku Jäntti, Muhammad Sheikh, Dinh-Thuy Phan-Huy
2024
Proceedings of the 3rd International Conference on 6G Networking (6GNet)
Using Existing Base Station Sites for 5G Millimeter-Wave Fixed Wireless Access: Antenna Height and Coverage Analysis
Norshahida Saba, Jari Salo, Kalle Ruttik, Riku Jäntti
2024
2024 IEEE Wireless Communications and Networking Conference, WCNC 2024 - Proceedings
A Three-State Received Signal Strength Model for Integrated Sensing and Backscatter Communication
Boxuan Xie, Xiyu Wang, Hüseyin Yiğitler, Kalle Ruttik, Riku Jäntti
2024
2023 IEEE Globecom Workshops, GC Wkshps 2023
Flexible Thin Film Multi-antenna Integrated Backscatter Device
Boxuan Xie, Juho Kerminen, Jari Lietzen, Lauri Mela, Kalle Ruttik, Alp Karakoc, Riku Jäntti
2024
2024 IEEE Wireless Communications and Networking Conference, WCNC 2024 - Proceedings
Integration of Visible Light and Backscatter Communications for Ambient Internet of Things
Boxuan Xie, Alexis Dowhuszko, Kalle Koskinen, Lauri Mela, Jari Lietzen, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2024
Proceedings of the 2024 IEEE 99th Vehicular Technology Conference
Light-controlled Thin Film Backscatter Device Using Additive Manufacturing
Boxuan Xie, Lauri Mela, Jari Lietzen, Kalle Ruttik, Alexis Dowhuszko, Riku Jantti
2024
IEEE Sensors Letters
Thin Film Reconfigurable Intelligent Surface for Harmonic Beam Steering
Boxuan Xie, Aleksandr D. Kuznetsov, Lauri Mela, Jari Lietzen, Kalle Ruttik, Alp Karakoc, Riku Jantti
2024
IEEE Sensors Letters
Low-cost thin film patch antennas and antenna arrays with various background wall materials for indoor wireless communications
Juho Kerminen, Boxuan Xie, Lauri Mela, Alp Karakoç, Kalle Ruttik, Riku Jäntti
2023
Flexible and Printed Electronics
Demo: UE Assisted Ambient Internet of Things in LTE Downlink, Energy Autonomous
Jingyi Liao, Kalle Koskinen, Xiyu Wang, Boxuan Xie, Kalle Ruttik, Riku Jäntti, Dinh-Thuy Phan-Huy
2023
Demo: UE Assisted Ambient IoT in LTE Downlink, in real-time and open source
Jingyi Liao, Kalle Ruttik, Riku Jäntti, Dinh-Thuy Phan-Huy
2023
Proceedings of the 21st Annual International Conference on Mobile Systems, Applications and Services
In-band Ambient FSK Backscatter Communications Leveraging LTE Cell-Specific Reference Signals
Jingyi Liao, Xiyu Wang, Kalle Ruttik, Riku Jäntti, Dinh-Thuy Phan-Huy
2023
IEEE Journal of Radio Frequency Identification
Midhaul Performance Modelling Using Commodity Hardware C-RAN Testbed
Nicolas Malm, Kalle Ruttik, Olav Tirkkonen
2023
Wireless Personal Communications
Impact of carrier frequency offset and phase noise on the steering vector for 3D drone localization based on angle of arrival (AOA).
Mehari Meles, Akash Rajasekaran, Lauri Mela, Kalle Ruttik, Riku Jäntti
2023
2023 16th International Conference on Signal Processing and Communication System (ICSPCS)
Performance evaluation of measurement based GPS denied 3D drone localization and tracking
Mehari Meles, Akash Rajasekaran, Lauri Mela, Reza Ghazalian, Kalle Ruttik, Riku Jäntti
2023
2023 IEEE Wireless Communications and Networking Conference (WCNC)
Zero-Energy-Device for 6G:First Real-Time Backscatter Communication Thanks to the Detection of Pilots from an Ambient Commercial Cellular Network
Papis Ndiaye, Dinh Thuy Phan-Huy, Ayman Hassan, Jingyi Liao, Xiyu Wang, Kalle Ruttik, Riku Jantti
2023
International Conference on 6G Networking, 6GNet 2023
Camouflage learning : Feature value obscuringambient intelligence for constrained devices
Le Ngu Nguyen, Stephan Sigg, Jari Lietzén, Rainhard Dieter Findling, Kalle Ruttik
2023
IEEE Transactions on Mobile Computing
Millimeter-Wave Radio Link Analysis for 5G FWA by Combining Measurements and Geospatial Data
Norshahida Saba, Lauri Mela, Kalle Ruttik, Jari Salo, Riku Jantti
2023
Proceedings - 2022 IEEE Future Networks World Forum, FNWF 2022
A Joint Radar and Communication Approach for 5G NR using Reinforcement Learning
Dariush Salami, Wanru Ning, Kalle Ruttik, Riku Jantti, Stephan Sigg
2023
IEEE Communications Magazine
Channel Characterization at Sub-THz Band with Measurements and Ray Tracing in Indoor Case
Muhammad Usman Sheikh, Muhsin Ali, Guillermo Carpintero, Kalle Ruttik, Edward Mutafungwa, Riku Jantti
2023
37th International Conference on Information Networking, ICOIN 2023
Drone localization based on 3D-AoA signal measurements
Mehari Meles, Lauri Mela, Akash Rajasekaran, Kalle Ruttik, Riku Jantti
2022
2022 IEEE 95th Vehicular Technology Conference - Spring, VTC 2022-Spring - Proceedings
Ambient backscatter communications using LTE cell specific reference signals
Kalle Ruttik, Xiyu Wang, Jingyi Liao, Riku Jantti, Phan Huy Dinh-Thuy
2022
2022 IEEE 12th International Conference on RFID Technology and Applications, RFID-TA 2022
Power Angular Measurements and Ray Tracing Simulations at Sub-THz Frequencies in Corridor
Muhammad Usman Sheikh, Muhsin Ali, Guillermo Carpintero, Kalle Ruttik, Edward Mutafangwa, Riku Jantti
2022
2022 IEEE Wireless Communications and Networking Conference, WCNC 2022
X-Haul Solutions for Different Functional Split Options Using THz and Sub-THz Bands
Muhammad Usman Sheikh, Kalle Ruttik, Edward Mutafungwa, Riku Jäntti, Jyri Hamalainen, Eduardo Yusta Padilla
2022
MobiWac 2022 - Proceedings of the 20th ACM International Symposium on Mobility Management and Wireless Access
Characterization of low-cost inkjet printed-photonic cured strain gauges for remote sensing and structural monitoring applications
Juho Kerminen, Jenny Wiklund, Alp Karakoç, Kalle Ruttik, Riku Jäntti, Hüseyin Yiǧitler
2021
Research on Engineering Structures and Materials
Measurement based performance evaluation of drone self-localization using AoA of cellular signals
Mehari Meles, Akash Rajasekaran, Kalle Ruttik, Reino Virrankoski, Riku Jantti
2021
WPMC 2021 - 24th International Symposium on Wireless Personal Multimedia Communications
Measurements at 5G Commercial 26 GHz Frequency with above and on Rooftop Level Antenna Masts in Urban Environment
Norshahida Saba, Lauri Mela, Muhammad Usman Sheikh, Kalle Ruttik, Jari Salo, Riku Jäntti
2021
Proceedings of IEEE 93rd Vehicular Technology Conference, VTC 2021
Rural Macrocell Path Loss Measurements for 5G Fixed Wireless Access at 26 GHz
Norshahida Saba, Lauri Mela, Muhammad Usman Sheikh, Jari Salo, Kalle Ruttik, Riku Jäntti
2021
Proceedings - 2021 IEEE 4th 5G World Forum, 5GWF 2021
Adaptive Physical Layer Selection for Bluetooth 5: Measurements and Simulations
Muhammad Usman Sheikh, Behnam Badihi, Kalle Ruttik, Riku Jäntti
2021
Wireless Communications and Mobile Computing
Analysis of Drone Propagation with Ray Tracing from Sub-6 GHz Upto Terahertz Frequencies in a Real World Urban Environment
Muhammad Usman Sheikh, Kalle Ruttik, Norshaida Saba, Edward Mutafungwa, Riku Jantti, Jyri Hamalainen
2021
35th International Conference on Information Networking, ICOIN 2021
A study about signal variation with minor receiver displacement in a meeting room at 60 GHz: measurements and simulations
Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2021
Eurasip Journal on Wireless Communications and Networking
Blockage and Ray Tracing Propagation Model in 3GPP Specified Industrial Environment
Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2021
35th International Conference on Information Networking, ICOIN 2021
Distributed Antenna System in 3GPP Specified Industrial Environment
Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2021
Proceedings of IEEE 93rd Vehicular Technology Conference, VTC 2021
Measurement Based Study of Commercial 5G Frequencies in Urban Macro Cellular Environment
Muhammad Usman Sheikh, Norshahida Saba, Lauri Mela, Jari Salo, Kalle Ruttik, Riku Jäntti
2021
2021 17th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2021
Outdoor to Indoor Path Loss Measurement at 1.8GHz, 3.5GHz, 6.5GHz, and 26GHz Commercial Frequency Bands
Muhammad Usman Sheikh, Lauri Mela, Norshahida Saba, Kalle Ruttik, Riku Jantti
2021
WPMC 2021 - 24th International Symposium on Wireless Personal Multimedia Communications
Ultra-low-power wide range backscatter communication using cellular generated carrier
Muhammad Usman Sheikh, Boxuan Xie, Kalle Ruttik, Hüseyin Yiğitler, Riku Jäntti, Jyri Hämäläinen
2021
Sensors
A review on printed electronics: Fabrication methods, inks, substrates, applications and environmental impacts
Jenny Wiklund, Alp Karakoç, Toni Palko, Hüseyin Yigitler, Kalle Ruttik, Riku Jäntti, Jouni Paltakari
2021
Journal of Manufacturing and Materials Processing
On performance evaluation of BLE 5 in indoor environment
Behnam Badihi, Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti
2020
Proceedings of the IEEE 31th Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020
Latency-Aware Power Management in Software-Defined Radios
Nicolas Malm, Kalle Ruttik, Olav Tirkkonen
2020
Journal of Electrical and Computer Engineering
Measurements and ray tracing simulations
Muhammad Usman Sheikh, Kalle Ruttik, Riku Jäntti, Jyri Hämäläinen
2020
2020 European Conference on Networks and Communications, EuCNC 2020
On the Performance of AoA based Localization in 5G Ultra Dense Networks
Estifanos Menta, Nicolas Malm, Riku Jäntti, Kalle Ruttik, M. Costa, Kari Leppänen
2019
IEEE Access
Analysis of Indoor Solutions for Provision of Indoor Coverage at 3.5 GHz and 28 GHz for 5G System
M. U. Sheikh, F. Ghavimi, K. Ruttik, R. Jäntti
2019
2019 26th International Conference on Telecommunications (ICT)
DAS and UDN Solutions for Indoor Coverage at Millimeter Wave (mmWave) Frequencies
Muhammad Sheikh, Kalle Ruttik, Riku Jäntti
2019
IEEE Vehicular Technology Conference - VTC2019-Fall
Drone Detection and Classification Using Cellular Network: A Machine Learning Approach
Muhammad Sheikh, Fayezeh Ghavimi, Kalle Ruttik, Riku Jäntti
2019
IEEE Vehicular Technology Conference - VTC2019-Fall
Performance Analysis of Vertical and Higher Order Sectorization in Urban Environment at 28 GHz
M. U. Sheikh, K. Ruttik, R. Jäntti
2019
2019 26th International Conference on Telecommunications (ICT)
Performance Evaluation of Switched Beam Antenna with Different Configurations at 28 GHz
Muhammad Sheikh, Kalle Ruttik, Riku Jäntti
2019
IEEE Wireless Communications and Networking Conference (WCNC) 2019
Quantum Backscatter Communication: A New Paradigm
Roberto Di Candia, Riku Jäntti, Ruifeng Duan, Jari Lietzén, Hany Khalifa, Kalle Ruttik
2018
Proceedings of 2018 15th International Symposium on Wireless Communication Systems (ISWCS)
Multi-bounce Effect: an Overlooked Aspect in Analysis of Ambient Backscatter Networks
Ruifeng Duan, Kalle Ruttik, Riku Jäntti
2018
EWSN ’18 Proceedings of the 2018 International Conference on Embedded Wireless Systems and Networks
User Localization Enabled Ultra-dense Network Testbed
Nicolas Malm, Liang Zhou, Estifanos Menta, Kalle Ruttik, Riku Jäntti, Olav Tirkkonen, Mario Costa, Kari Leppänen
2018
IEEE 5G World Forum, 5GWF 2018 - Conference Proceedings
Modeling and Analysis of Dynamic Pilot Scheduling scheme for 5G Ultra-Dense Network
Estifanos Yohannes Menta, Kalle Ruttik, Riku Jäntti, Petteri Kela, Kari Leppänen
2018
IEEE 5G World Forum, 5GWF 2018 - Conference Proceedings
Does Ambient Backscatter Need Additional Regulations?
Kalle Ruttik, Ruifeng Duan, Riku Jäntti, Zhu Han
2018
IEEE International Symposium on Dynamic Spectrum Access Networks 2018
Angular Domain Data-Assisted Channel Estimation for Pilot Decontamination in Massive MIMO
Yihenew Beyene, Kalle Ruttik, Riku Jäntti
2017
Mobile Information Systems
NB-IoT Technology Overview and Experience from Cloud-RAN Implementation
Yihenew Dagne Beyene, Riku Jantti, Olav Tirkkonen, Kalle Ruttik, Sassan Iraji, Anna Larmo, Tuomas Tirronen, Johan Torsner
2017
IEEE Wireless Communications
On the performance of narrow-band internet of things (NB-IoT)
Yihenew Dagne Beyene, Riku Jantti, Kalle Ruttik, Sassan Iraji
2017
2017 IEEE Wireless Communications and Networking Conference, WCNC 2017 - Proceedings
Random Access Scheme for Sporadic Users in 5G
Yihenew Dagne Beyene, Riku Jäntti, Kalle Ruttik
2017
IEEE Transactions on Wireless Communications
On the Achievable Rate of Bi-Static Modulated Re-Scatter Systems
Ruifeng Duan, Riku Jantti, Huseyin Yigitler, Kalle Ruttik
2017
IEEE Transactions on Vehicular Technology
Multiantenna Quantum Backscatter Communications
Riku Jäntti, Roberto Di Candia, Ruifeng Duan, Kalle Ruttik
2017
2017 IEEE Globecom Workshops (GC Wkshps) - Proceedings
Dynamic pilot scheduling scheme for 5G outdoor ultra-dense network
Estifanos Yohannes Menta, Kalle Ruttik, Riku Jantti
2017
2017 IEEE Conference on Standards for Communications and Networking, CSCN 2017
Energy savings through self-backhauling for future heterogeneous networks
Nasir Faruk, Kalle Ruttik, Edward Mutafungwa, Riku Jäntti
2016
Energy
Dynamic TDD in LTE small cells
Jussi Kerttula, Aleksi Marttinen, Kalle Ruttik, Riku Jäntti, Mirza Nazrul Alam
2016
Eurasip Journal on Wireless Communications and Networking
Compressive Sensing for MTC in New LTE Uplink Multi-User Random Access Channel
Yihenew Beyene, Christopher Boyd, Kalle Ruttik, Carsten Bockelmann, Olav Tirkkonen, Riku Jäntti
2015
AFRICON
Spectrum sharing for MTC devices in LTE
Yihenew Beyene, Nicolas Malm, Jussi Kerttula, Liang Zhou, Kalle Ruttik, Riku Jäntti, Olav Tirkkonen, Carsten Bockelmann
2015
2015 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
Spectrum Sharing for MTC Devices in LTE
Yihenew Beyene, Nicolas Malm, Jussi Kerttula, Liang Zhou, Kalle Ruttik, Riku Jäntti, Olav Tirkkonen, Carsten Bockelmann
2015
Transmission Strategies in Downlink of Multi-user Multi-cell Distributed Antenna Systems
Yihenew Beyene, Riku Jäntti, Kalle Ruttik
2015
PROCEEDINGS OF THE 2015 12TH IEEE AFRICON INTERNATIONAL CONFERENCE - GREEN INNOVATION FOR AFRICAN RENAISSANCE (AFRICON)
Spectrum sharing in D2D enabled HetNet
Jussi Kerttula, Yihenew Beyene, Nicolas Malm, Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Riku Jäntti
2015
2015 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
Spectrum Sharing in D2D Enabled HetNet Dynamic Spectrum Access Networks.Demo in DySPAN 2015
Jussi Kerttula, Yihenew Beyene, Nicolas Malm, Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Riku Jäntti
2015
Creating secondary spectrum usage opportunity for D2D communication with interference cancellation
Liang Zhou, Jussi Kerttula, Nicolas Malm, Yihenew Beyene, Kalle Ruttik, Olav Tirkkonen, Riku Jäntti
2015
2015 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
Creating Secondary Spectrum Usage Opportunity for D2D Communication with Interference Cancellation.Demo in DySPAN 2015
Liang Zhou, Jussi Kerttula, Nicolas Malm, Yihenew Beyene, Kalle Ruttik, Olav Tirkkonen, Riku Jäntti
2015
Interference Canceling Power Optimization for Device-to-Device Communication
Liang Zhou, Kalle Ruttik, Olav Tirkkonen
2015
81st Vehicular Technology Conference (VTC Spring 2015), Glasgow, Scotland, 1114 May 2015
Cloud-RAN Architecture for Indoor DAS
Yihenew Dagne Beyene, Riku Jäntti, Kalle Ruttik
2014
IEEE Access
Synchronized TV Whitespace Spectrum Access
Yihenew Beyene, Kalle Ruttik, Riku Jäntti
2014
9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), 2014, Oulu, Finland, June 24, 2014
Implementing TD-LTE as software defined radio in general purpose processor
Jussi Kerttula, Nicolas Malm, Kalle Ruttik, Riku Jäntti, Olav Tirkkonen
2014
ACM SIGCOMM Software Radio Implementation Forum (SRIF) 2014, Chicago, USA, Aug 18, 2014
Demonstration of high reliability D2D radio link operating in LTE bandwidth under control of LTE BS,” Demonstration in IEEE International Workshop on Cognitive Cellular Systems (IEEE CCS 2014), 2014
Nicolas Malm, Yihenew Beyene, Jussi Kerttula, Kalle Ruttik, Riku Jäntti, Olav Tirkkonen
2014
TD-LTE software radio testbed: illustration of BS controlled D2D communication
Nicolas Malm, Jussi Kerttula, Liang Zhou, Yihenew Beyene, Olav Tirkkonen, Riku Jäntti, Kalle Ruttik
2014
European workshop on testbed based wireless research
Saving energy in base station with non real time operation system in Cloud-RAN
Aleksi Marttinen, Kalle Ruttik, Riku Jäntti
2014
IEEE Global Communications Conference (GLOBECOM): 2nd Workshop on Green Broadband access: energy efficient wireless and wired network solutions, Austin, TX, USA, December 8-12, 2014
EECRT: Cloud-RAN testbed, Demonstration in TRIAL Workshop, CrownCom 2014
Kalle Ruttik, Nicolas Malm, Jussi Kerttula, Riku Jäntti, Olav Tirkkonen
2014
METIS RRM key component: Direct network controlled D2D,” EuCNC 2014, Exhibition stand 18
Kalle Ruttik, Nicolas Malm, Jussi Kerttula, Riku Jäntti, Olav Tirkkonen
2014
Cell-edge Inversion by Interference Cancellation for Downlink Cellular Systems
Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Randall Berry
2014
IEEE International Conference on Communication Systems, ICCS 2014, Macau, Nov 19-21, 2014
Effect of secondary transmission on primary pilot carriers in overlay cognitive radios
Yihenew Beyene, Kalle Ruttik, Riku Jantti
2013
8th International Conference on Cognitive Radio Oriented Wireless Networks (CROWNCOM), 2013, Washington DC, USA, 8-10 July 2013
Modeling the Interference Generated from Car Base Stations Towards Indoor Femto-cell
Byungjin Cho, Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2013
The Third IFAC Symposium on Telematics Applications (TA 2013) November 11?13, 2013 — Yonsei University, Seoul, Korea
Interference canceling power control games in Gaussian interference channels
Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Randall Berry
2013
IEEE International Symposium on Information Theory, ISIT 2013, Istanbul, Turkey, July 7-12, 2013
Power Allocation in the TV White Space under Constraint on Secondary System Self-Interference
Byungjin Cho, Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2012
Journal of Electrical and Computer Engineering
Dimensioning of secondary cellular system in TVWS
Jussi Kerttula, Kalle Ruttik, Riku Jäntti
2012
2012 7th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM)
Aggregate interference from WLAN in the TVWS by using terrain-based channel model
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2012
IEEE International Conference on Cognitive Radio Oriented Wireless Networks (CROWNCOM), Stockholm, Sweden, June 18-20, 2012.
Voice Service in Cognitive Networks over the TV Spectrum
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2012
IET Communications
Päätelaitteista arvoverkkoihin: Tietoliikenneyhteydet tehokäyttöön
Thomas Casey, Heikki Hämmäinen, Jukka Manner, Jussi Poikonen, Kalle Ruttik, Olav Tirkkonen
2011
Prosessori
Aggregate interference with FCC and ECC white space usage rules: case study in Finland
Riku Jäntti, Jussi Kerttula, Konstantinos Koufos, Kalle Ruttik
2011
IEEE Dynamic Spectrum Access Networks, Aachen, Germany 3-6 May, 2011
Controlling the interference from multiple secondary systems at the TV cell border
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2011
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
Distributed Sensing in Multiband Cognitive Networks
Konstantinos Koufos, Kalle Ruttik, Riku Jantti
2011
IEEE Transactions on Wireless Communications
Computation of aggregate interference from multiple secondary transmitters
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2011
IEEE Communications Letters
Model for computing aggregate interference from secondary cellular network in presence of correlated shadow fading
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2011
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
Secondary spectrum usage in TV white space
Kalle Ruttik
2011
Feasibility of Voice Service in Cognitive Networks over the TV Spectrum
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2010
The 5th International Conference on Cognitive Radio Oriented Wireless Network and Communications, CrownCom 2010, Cannes, France, June 9-11, 2010
Modeling of the Secondary System's Generated Interference and Studying of its Impact on the Secondary System Design
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2010
Radioengineering
OFDM sensing in low SNR with noise uncertainty
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2009
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications
Signal model for OFDM sensing in cognitive radio
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2009
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications
Modeling BLER performance of punctured turbo codes
Sergio Lembo, Kalle Ruttik, Olav Tirkkonen
2009
12th Internat. Symposium on Wireless Personal Multimedia Communications (WPMC), Sept., 7.-10.2009, Sendai, Japan
Combining BICM with trellis based constellation shaping
Kalle Ruttik
2009
International Wireless Communications and Mobile Computing Conference (IWCMC 2009), Leipzig, Germany, June 21-24, 2009
Detection of unknown signals in fading environment
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2009
IEEE Communications Letters
LESUS, yleiskäyttöön laajennettu linkkisimulaattori, käyttöoikeus kuuluu NSN, Japan
Kalle Ruttik
2009
Spectrum reuse at the border of a primary user cell
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2009
IEEE Transactions on Communications
Spectrum sensing with multiple antennas
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2009
IEEE International Conference on Systems, Man, and Cybernetics, SMC 2009.
Approximate Rate Quantization of Adaptive Modulation and Coding with Near-Optimum Throughput
Chia-Hao Yu, Kalle Ruttik, Olav Tirkkonen
2009
The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09), Sept., 13-16.2009, Tokyo, Japan
The Design of Adaptive Modulation and Coding System Using Ideal Performance Codes
Chia-Hao Yu, Kalle Ruttik, Olav Tirkkonen
2009
International Wireless Communications and Mobile Computing Conference (IWCMC 2009), Communication and Information Theory Symposium, Leipzig, Germany, June 21-24, 2009
Signal model for dynamic spectrum allocation close to the cell border of a primary transmitter
Konstantinos Koufos, Kalle Ruttik, Riku Jäntti
2008
The third IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), Chicago, IL, USA, October 14-17, 2008.
Modeling of convolutional code performance
Sergio Lembo, Kalle Ruttik, Olav Tirkkonen
2008
IEEE WPMC'08, Sept. 8-11,2008, Lappland, Finland
Optimum rate quantization for adaptive modulation and coding
Chia-Hao Yu, Kalle Ruttik, Olav Tirkkonen
2008
IEEE WPMC'08, Sept. 8-11,2008, Lappland, Finland
Distributed power detection in shadowing environment and with communication constraint
Kalle Ruttik, Konstantinos Koufos, Riku Jäntti
2007
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications
Calcualtion of mutual information between messages in loops of a Tanner Graph
Kalle Ruttik
2006
ISIT’2006, Seattle, July, 2006
Diversity and packet combining in Rayleigh fading channels
Shyam Chakraborty, Markku Liinaharja, Kalle Ruttik
2005
IEE Proceedings - Communications
BER for CMOS analog decoder with different working points
Kalle Ruttik
2004
11th International Conference in Telecommunications, ICT'04, August, 2004
Decoding of Punctured Turbo Codes Using Dual Codes
Kalle Ruttik
2004
6th Nordic Signal Processing Symposium (NORSIG 2004), June, 2004
Error analysis of the CMOS based soft gate for analog turbo decoder
Kalle Ruttik
2004
the 15'th IEEE International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2004, September, 2004.
Adaptive OFDM for wideband channels
Hui Zhou, Timo Korhonen, Kalle Ruttik
2002
FWCW'02 Finnish Wireless Communications Workshop, Espoo, May 29, 2002
A wideband channel model for simulation of chaotic communicatin systems A Wideband Radio Channel Model for Simulation of Chaotic Communication Systems
K. Ruttik, M. Honkanen, M.Korhonen Hall, V. Porra
1997
European Conference on Circuit Theory and Design, ECCTD'97, 30.8.-3.9.1997, Budapest, Hungary
Uudet radioverkot, Televerkkoseminaari, kevät 1996
S.J. Halme, K. Ruttik
1996