BER for CMOS Analog Decoder with Different Working Points. - Kalle Ruttik (ICT, 2004)

Error analysis of the CMOS based soft gate for analog turbo decoder. - Kalle Ruttik (PIMRC, 2004)

Calculation of Mutual Information between Messages in Loops of a Tanner Graph. - Kalle Ruttik (ISIT, 2006)

Distributed Power Detection in Shadowing Environment and with Communication Constraint. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (PIMRC, 2007)

Combining BICM with trellis based constellation shaping. - Kalle Ruttik (IWCMC, 2009)

Design of adaptive modulation and coding system using ideal performance codes. - Chia-Hao Yu; Kalle Ruttik; Olav Tirkkonen (IWCMC, 2009)

Signal model for OFDM sensing in cognitive radio. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (PIMRC, 2009)

OFDM sensing in low SNR with noise uncertainty. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (PIMRC, 2009)

Approximate rate quantization of Adaptive Modulation and Coding with near-optimum throughput. - Chia-Hao Yu; Kalle Ruttik; Olav Tirkkonen (PIMRC, 2009)

Spectrum sensing with multiple antennas. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (SMC, 2009)

Detection of Unknown Signals in a Fading Environment. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (IEEE Commun. Lett., 2009)

Spectrum reuse at the border of a primary user cell. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (IEEE Trans. Commun., 2009)

Feasibility of voice service in cognitive networks over the TV spectrum. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (CrownCom, 2010)

Controlling the interference from multiple secondary systems at the TV cell border. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (PIMRC, 2011)

Model for computing aggregate interference from secondary cellular network in presence of correlated shadow fading. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (PIMRC, 2011)

Computation of Aggregate Interference from Multiple Secondary Transmitters. - Kalle Ruttik; Konstantinos Koufos; Riku Jäntti (IEEE Commun. Lett., 2011)

Distributed Sensing in Multiband Cognitive Networks. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (IEEE Trans. Wirel. Commun., 2011)

Secondary spectrum usage in TV white space. - Kalle Ruttik (2011)

Dimensioning of secondary cellular system in TVWS. - Jussi Kerttula; Kalle Ruttik; Riku Jäntti (CrownCom, 2012)

Aggregate interference from WLAN in the TV white space by using terrain-based channel model. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (CrownCom, 2012)

Voice service in cognitive networks over the TV spectrum. - Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (IET Commun., 2012)

Power Allocation in the TV White Space under Constraint on Secondary System Self-Interference. - Byungjin Cho; Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (J. Electr. Comput. Eng., 2012)

Effect of secondary transmission on primary pilot carriers in overlay cognitive radios. - Yihenew Dagne Beyene; Kalle Ruttik; Riku Jäntti (CrownCom, 2013)

Interference canceling power control games in Gaussian interference channels. - Liang Zhou 007; Kalle Ruttik; Olav Tirkkonen; Randall Berry (ISIT, 2013)

Modeling the Interference Generated from Car Base Stations towards Indoor Femto-Cells. - Byungjin Cho; Konstantinos Koufos; Kalle Ruttik; Riku Jäntti (TA, 2013)

Synchronized TV whitespace spectrum access. - Yihenew Dagne Beyene; Kalle Ruttik; Riku Jäntti (CrownCom, 2014)

Saving energy in base station with non real time operation system in Cloud-RAN. - Aleksi Marttinen; Kalle Ruttik; Riku Jäntti (GLOBECOM Workshops, 2014)

Cell-edge inversion by interference cancellation for downlink cellular systems. - Liang Zhou 007; Kalle Ruttik; Olav Tirkkonen; Randall Berry (ICCS, 2014)

Implementing TD-LTE as software defined radio in general purpose processor. - Jussi Kerttula; Nicolas Malm; Kalle Ruttik; Riku Jäntti; Olav Tirkkonen (SRIF@SIGCOMM, 2014)

Cloud-RAN Architecture for Indoor DAS. - Yihenew Dagne Beyene; Riku Jäntti; Kalle Ruttik (IEEE Access, 2014)

Compressive sensing for MTC in new LTE uplink multi-user random access channel. - Yihenew Dagne Beyene; Christopher Boyd; Kalle Ruttik; Carsten Bockelmann; Olav Tirkkonen; Riku Jäntti (AFRICON, 2015)

Transmission strategies in downlink of multi-user multi-cell distributed antenna systems. - Yihenew Dagne Beyene; Sassan Iraji; Riku Jäntti; Kalle Ruttik (AFRICON, 2015)

Spectrum sharing for MTC devices in LTE. - Yihenew Dagne Beyene; Nicolas Malm; Jussi Kerttula; Liang Zhou 007; Kalle Ruttik; Riku Jäntti; Olav Tirkkonen; Carsten Bockelmann (DySPAN, 2015)

Spectrum sharing in D2D enabled HetNet. - Jussi Kerttula; Yihenew Dagne Beyene; Nicolas Malm; Liang Zhou 007; Kalle Ruttik; Olav Tirkkonen; Riku Jäntti (DySPAN, 2015)

Creating secondary spectrum usage opportunity for D2D communication with interference cancellation. - Liang Zhou 007; Jussi Kerttula; Nicolas Malm; Yihenew Dagne Beyene; Kalle Ruttik; Olav Tirkkonen; Riku Jäntti (DySPAN, 2015)

Interference Canceling Power Optimization for Device to Device Communication. - Liang Zhou 007; Kalle Ruttik; Olav Tirkkonen (VTC Spring, 2015)

On the Capacity of Bi-static Modulated Re-scatter Systems. - Ruifeng Duan 001; Riku Jäntti; Hüseyin Yigitler; Kalle Ruttik (CoRR, 2016)

Dynamic TDD in LTE small cells. - Jussi Kerttula; Aleksi Marttinen; Kalle Ruttik; Riku Jäntti; Mirza Nazrul Alam (EURASIP J. Wirel. Commun. Netw., 2016)

Dynamic pilot scheduling scheme for 5G outdoor ultra-dense network. - Estifanos Yohannes Menta; Kalle Ruttik; Riku Jäntti (CSCN, 2017)

Multiantenna Quantum Backscatter Communications. - Riku Jaentti; Roberto Di Candia; Ruifeng Duan 001; Kalle Ruttik (GLOBECOM Workshops, 2017)

On the Performance of Narrow-Band Internet of Things (NB-IoT). - Yihenew Dagne Beyene; Riku Jäntti; Kalle Ruttik; Sassan Iraji (WCNC, 2017)

Angular Domain Data-Assisted Channel Estimation for Pilot Decontamination in Massive MIMO. - Yihenew Dagne Beyene; Kalle Ruttik; Riku Jäntti (Mob. Inf. Syst., 2017)

On the Achievable Rate of Bistatic Modulated Rescatter Systems. - Ruifeng Duan 001; Riku Jäntti; Hüseyin Yigitler; Kalle Ruttik (IEEE Trans. Veh. Technol., 2017)

Random Access Scheme for Sporadic Users in 5G. - Yihenew Dagne Beyene; Riku Jäntti; Kalle Ruttik (IEEE Trans. Wirel. Commun., 2017)

NB-IoT Technology Overview and Experience from Cloud-RAN Implementation. - Yihenew Dagne Beyene; Riku Jäntti; Olav Tirkkonen; Kalle Ruttik; Sassan Iraji; Anna Larmo; Tuomas Tirronen; Johan Torsner (IEEE Wirel. Commun., 2017)

User Localization Enabled Ultra-dense Network Testbed. - Nicolas Malm; Liang Zhou 007; Estifanos Yohannes Menta; Kalle Ruttik; Riku Jäntti; Olav Tirkkonen; Mário Costa; Kari Leppänen (5G World Forum, 2018)

Modeling and Analysis of Dynamic Pilot Scheduling scheme for 5G Ultra-Dense Network. - Estifanos Yohannes Menta; Kalle Ruttik; Riku Jäntti; Petteri Kela; Kari Leppänen (5G World Forum, 2018)

Does Ambient Backscatter Communication Need Additional Regulations? - Kalle Ruttik; Ruifeng Duan 001; Riku Jäntti; Zhu Han 001 (DySPAN, 2018)

Multi-bounce Effect: an Overlooked Aspect in Analysis of Ambient Backscatter Networks. - Ruifeng Duan 001; Riku Jäntti; Kalle Ruttik (EWSN, 2018)

Quantum Backscatter Communication: A New Paradigm. - Roberto Di Candia; Riku Jäntti; Ruifeng Duan 001; Jari Lietzén; Hany Khalifa; Kalle Ruttik (ISWCS, 2018)

Analysis of Indoor Solutions for Provision of Indoor Coverage at 3.5 GHz and 28 GHz for 5G System. - Muhammad Usman Sheikh; Fayezeh Ghavimi; Kalle Ruttik; Riku Jäntti (ICT, 2019)

Performance Analysis of Vertical and Higher Order Sectorization in Urban Environment at 28 GHz. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti (ICT, 2019)

Drone Detection and Classification Using Cellular Network: A Machine Learning Approach. - Muhammad Usman Sheikh; Fayezeh Ghavimi; Kalle Ruttik; Riku Jäntti (VTC Fall, 2019)

DAS and UDN Solutions for Indoor Coverage at Millimeter Wave (mmWave) Frequencies. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti (VTC Fall, 2019)

Performance Evaluation of Switched Beam Antenna with Different Configurations at 28 GHz. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti (WCNC, 2019)

On the Performance of AoA-Based Localization in 5G Ultra-Dense Networks. - Estifanos Yohannes Menta; Nicolas Malm; Riku Jäntti; Kalle Ruttik; Mário Costa; Kari Leppänen (IEEE Access, 2019)

Measurements and Ray Tracing Simulations: Impact of Different Antenna Positions on Meeting Room Coverage at 60 GHz. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti; Jyri Hämäläinen (EuCNC, 2020)

On Performance Evaluation of BLE 5 In Indoor Environment: An Experimental Study. - Behnam Badihi; Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti (PIMRC, 2020)

Latency-Aware Power Management in Software-Defined Radios. - Nicolas Malm; Kalle Ruttik; Olav Tirkkonen (J. Electr. Comput. Eng., 2020)

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 (5GWF, 2021)

Blockage and Ray Tracing Propagation Model in 3GPP Specified Industrial Environment. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti; Jyri Hämäläinen (ICOIN, 2021)

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; Norshahida Saba; Edward Mutafungwa; Riku Jäntti; Jyri Hämäläinen (ICOIN, 2021)

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 (VTC Spring, 2021)

Distributed Antenna System in 3GPP Specified Industrial Environment. - Muhammad Usman Sheikh; Kalle Ruttik; Riku Jäntti; Jyri Hämäläinen (VTC Spring, 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 (WiMob, 2021)

Measurement based performance evaluation of drone self-localization using AoA of cellular signals. - Mehari Meles; Akash Rajasekaran; Kalle Ruttik; Reino Virrankoski; Riku Jäntti (WPMC, 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 Jäntti (WPMC, 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 (EURASIP J. Wirel. Commun. Netw., 2021)

Ultra-Low-Power Wide Range Backscatter Communication Using Cellular Generated Carrier. - Muhammad Usman Sheikh; Boxuan Xie; Kalle Ruttik; Hüseyin Yigitler; Riku Jäntti; Jyri Hämäläinen (Sensors, 2021)

Adaptive Physical Layer Selection for Bluetooth 5: Measurements and Simulations. - Muhammad Usman Sheikh; Behnam Badihi; Kalle Ruttik; Riku Jäntti (Wirel. Commun. Mob. Comput., 2021)

Millimeter-Wave Radio Link Analysis for 5G FWA by Combining Measurements and Geospatial Data. - Norshahida Saba; Lauri Mela; Kalle Ruttik; Jari Salo; Riku Jäntti (FNWF, 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 Hämäläinen; Eduardo Yusta Padilla (MobiWac, 2022)

Ambient backscatter communications using LTE cell specific reference signals. - Kalle Ruttik; Xiyu Wang; Jingyi Liao; Riku Jäntti; Dinh-Thuy Phan-Huy (RFID-TA, 2022)

Drone localization based on 3D-AoA signal measurements. - Mehari Meles; Lauri Mela; Akash Rajasekaran; Kalle Ruttik; Riku Jäntti (VTC Spring, 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 Jäntti (WCNC, 2022)

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 Jäntti (6GNet, 2023)

A Three-State Received Signal Strength Model for Integrated Sensing and Backscatter Communication. - Boxuan Xie; Xiyu Wang; Hüseyin Yigitler; Kalle Ruttik; Riku Jäntti (GLOBECOM (Workshops), 2023)

Channel Characterization at Sub-THz Band with Measurements and Ray Tracing in Indoor Case. - Muhammad Usman Sheikh; Muhsin Ali; Guillermo Carpintero; Kalle Ruttik; Edward Mutafangwa; Riku Jäntti (ICOIN, 2023)

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 (ICSPCS, 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 (MobiSys, 2023)

Performance evaluation of measurement based GPS denied 3D drone localization and tracking. - Mehari Meles; Akash Rajasekaran; Lauri Mela; Reza Ghazalian; Kalle Ruttik; Riku Jäntti (WCNC, 2023)

Camouflage Learning: Feature Value Obscuring Ambient Intelligence for Constrained Devices. - Le Ngu Nguyen; Stephan Sigg; Jari Lietzén; Rainhard Dieter Findling; Kalle Ruttik (IEEE Trans. Mob. Comput., 2023)

Midhaul Performance Modelling Using Commodity Hardware C-RAN Testbed. - Nicolas Malm; Kalle Ruttik; Olav Tirkkonen (Wirel. Pers. Commun., 2023)

Measurement of Coded Backscatter Communication Utilizing Commercial LTE Ambient Signal. - Jingyi Liao; Kalle Ruttik; Riku Jäntti; Muhammad Usman Sheikh; Dinh-Thuy Phan-Huy (6GNet, 2024)

Data Assistance Cellular Signal Based Ambient Backscatter Receiver. - Jingyi Liao; Kalle Ruttik; Riku Jäntti (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 (VTC Spring, 2024)

Integration of Visible Light and Backscatter Communications for Ambient Internet of Things. - Boxuan Xie; Alexis A. Dowhuszko; Kalle Koskinen; Lauri Mela; Jari Lietzén; Kalle Ruttik; Riku Jäntti; Jyri Hämäläinen (VTC Spring, 2024)

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 (WCNC, 2024)

Flexible Thin Film Multi-Antenna Integrated Backscatter Device. - Boxuan Xie; Juho Kerminen; Jari Lietzén; Lauri Mela; Kalle Ruttik; Alp Karakoç; Riku Jäntti (WCNC, 2024)

Thin Film Reconfigurable Intelligent Surface for Harmonic Beam Steering. - Boxuan Xie; Aleksandr Kuznetsov; Lauri Mela; Jari Lietzén; Kalle Ruttik; Alp Karakoç; Riku Jäntti (CoRR, 2024)

Unlicensed RAN Integration with 5G for Time-Sensitive Networking. - José Costa-Requena; Kalle Ruttik; Riku Jäntti (NOMS, 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 (IEEE Access, 2025)

EWDC: Integrating DECT-2020 With Wi-Fi for Enhanced Wireless Direct Connectivity. - Yongchao Dang; Quoc Quang Ngo; Fagerholm Roni; Rantanen Veli-Matti; Kalle Ruttik; Riku Jäntti (IEEE Internet Things J., 2025)

Zero-Energy Devices for 6G: Technical Enablers at a Glance. - Onel Luis Alcaraz López; Ritesh Kumar Singh; Dinh-Thuy Phan-Huy; Efstathios Katranaras; Nafiseh Mazloum; Kalle Ruttik; Riku Jäntti; Hamza Khan; Osmel Martínez Rosabal; Pavlos Alexias; Prasoon Raghuwanshi; David E. Ruíz-Guirola; et al. (IEEE Internet Things Mag., 2025)