Wolfgang Zirwas

Publication Activity (10 Years)

Years Active: 1999-2024
Publications (10 Years): 34

Top Topics

Machine Learning

Channel Estimation

Top Venues

Publications

Wolfgang Zirwas, Berthold Panzner, Rakash SivaSiva Ganesan, Brenda Vilas Boas, Luis A. Suárez
Start Stop Bit Method for Efficient Data Communication in 6G Mobile Radio Systems. CoRR (2024)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Machine Learning Based Channel Prediction for NR Type II CSI Reporting. ICC (2023)
Wolfgang Zirwas, Brenda Vilas Boas, Lars Thiele
Ambiguity Subspace Resolution for Digital Twin Parameter Estimation. ICC Workshops (2023)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Machine Learning for CSI Recreation in the Digital Twin Based on Prior Knowledge. IEEE Open J. Commun. Soc. 3 (2022)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Transfer Learning Capabilities of Untrained Neural Networks for MIMO CSI Recreation. ICC (2022)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Combining AI/ML and PHY Layer Rule Based Inference - Some First Results. CoRR (2022)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Combining AI/ML and PHY Layer Rule Based Inference - Some First Results. SPAWC (2022)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Two-step Machine Learning Approach for Channel Estimation with Mixed Resolution RF Chains. CoRR (2021)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Machine Learning for Model Order Selection in MIMO OFDM Systems. CoRR (2021)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Machine Learning for CSI Recreation Based on Prior Knowledge. CoRR (2021)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Two-step Machine Learning Approach for Channel Estimation with Mixed Resolution RF Chains. ICC Workshops (2021)
Brenda Vilas Boas, Wolfgang Zirwas, Martin Haardt
Transfer Learning Capabilities of Untrained Neural Networks for MIMO CSI Recreation. CoRR (2021)
Wolfgang Zirwas, Mikael Sternad
Profiling of mobile Radio Channels. ICC (2020)
Wolfgang Zirwas, Diomidis Michalopoulos, Brenda Vilas Boas, Martin Haardt
Highly Accurate Multipath Component Delay Estimation. WSA (2020)
Stefan Dierks, Gerhard Kramer, Berthold Panzner, Wolfgang Zirwas
Information rates of precoding for massive MIMO and base station cooperation in an indoor scenario. EURASIP J. Wirel. Commun. Netw. 2020 (1) (2020)
Rikke Apelfrojd, Wolfgang Zirwas, Mikael Sternad
Low-Overhead Cyclic Reference Signals for Channel Estimation in FDD Massive MIMO. IEEE Trans. Commun. 67 (5) (2019)
Wolfgang Zirwas
Time Shifting - Effective Reporting of Channel State Information in mobile Radio Systems. WSA (2019)
Wolfgang Zirwas, Rakash SivaSiva Ganesan, Berthold Panzner
Sub Tiling - a flexible CSI Reference Signal Concept for 5G New Radio Systems. WSA (2018)
Stefan Dierks, Gerhard Kramer, Berthold Panzner, Wolfgang Zirwas
Analysis of Massive MIMO and Base Station Cooperation in an Indoor Scenario. CoRR (2018)
Alessandro Grassi, Giuseppe Piro, Gennaro Boggia, Martin Kurras, Wolfgang Zirwas, Rakash SivaSiva Ganesan, Klaus I. Pedersen, Lars Thiele
Massive MIMO interference coordination for 5G broadband access: Integration and system level study. Comput. Networks 147 (2018)
Andrei Nedelcu, Fabian Steiner, Markus Staudacher, Gerhard Kramer, Wolfgang Zirwas, Rakash SivaSiva Ganesan, Paolo Baracca, Stefan Wesemann
Quantized Precoding for Multi-Antenna Downlink Channels with MAGIQ. WSA (2018)
Markus Staudacher, Gerhard Kramer, Wolfgang Zirwas, Berthold Panzner, Rakash SivaSiva Ganesan
Constructing Receiver Signal Points using Constrained Massive MIMO Arrays. CoRR (2017)
Muhammad Bilal Amin, Wolfgang Zirwas, Martin Haardt
HOSVD-Based Denoising for Improved Channel Prediction of Weak Massive MIMO Channels. VTC Spring (2017)
Amir M. Ahmadian, Rakash SivaSiva Ganesan, Wolfgang Zirwas
Performance Evaluation of Linear Beamforming Receiver for Large CoMP Sparse Massive MIMO Channel Matrices. VTC Spring (2017)
Markus Staudacher, Gerhard Kramer, Wolfgang Zirwas, Berthold Panzner, Rakash SivaSiva Ganesan
Optimized Combination of Conventional and Constrained Massive MIMO Arrays. WSA (2017)
Wolfgang Zirwas, Mikael Sternad, Rikke Apelfrojd
Key solutions for a massive MIMO FDD system. PIMRC (2017)
Gábor Fodor, Nandana Rajatheva, Wolfgang Zirwas, Lars Thiele, Martin Kurras, Kaifeng Guo, Antti Tölli, Jesper H. Sørensen, Elisabeth de Carvalho
An Overview of Massive MIMO Technology Components in METIS. IEEE Commun. Mag. 55 (6) (2017)
Andrei Nedelcu, Fabian Steiner, Markus Staudacher, Gerhard Kramer, Wolfgang Zirwas, Rakash SivaSiva Ganesan, Paolo Baracca, Stefan Wesemann
Quantized Precoding for Multi-Antenna Downlink Channels with MAGIQ. CoRR (2017)
Dinh Thuy Phan Huy, Mikael Sternad, Tommy Svensson, Wolfgang Zirwas, Bernadette Villeforceix, F. Karim, Salah Eddine El Ayoubi
5G on Board: How Many Antennas Do We Need on Connected Cars? GLOBECOM Workshops (2016)
Amir M. Ahmadian, Wolfgang Zirwas, Rakash SivaSiva Ganesan, Berthold Panzner
Low complexity Moore-Penrose inverse for large CoMP areas with sparse massive MIMO channel matrices. PIMRC (2016)
Wolfgang Zirwas, Lars Thiele, Martin Kurras, Gerhard Wunder
Flexible 5G below 6GHz Mobile Broadband Radio Air Interface. VTC Spring (2016)
Wolfgang Zirwas, Muhammad Bilal Amin, Mikael Sternad
Coded CSI Reference Signals for 5G - Exploiting Sparsity of FDD Massive MIMO Radio Channels. WSA (2016)
Muhammad Bilal Amin, Wolfgang Zirwas, Martin Haardt
Virtual Massive MIMO Beamforming Gains for 5G User Terminals. VTC Fall (2016)
Rakash SivaSiva Ganesan, Wolfgang Zirwas, Berthold Panzner, Klaus I. Pedersen, Kimmo Valkealahti
Integrating 3D Channel Model and Grid of Beams for 5G mMIMO System Level Simulations. VTC Fall (2016)
Stefan Dierks, Wolfgang Zirwas, Markus Jäger, Berthold Panzner, Gerhard Kramer
MIMO and massive MIMO - Analysis for a local area scenario. EUSIPCO (2015)
Lars Thiele, Martin Kurras, Stephan Jaeckel, Stephan Fähse, Wolfgang Zirwas
Interference-floor shaping for liquid coverage zones in coordinated 5G networks. ACSSC (2015)
Muhammad Bilal Amin, Wolfgang Zirwas, Martin Haardt
Advanced channel prediction concepts for 5G radio systems. ISWCS (2015)
Wolfgang Zirwas
Opportunistic CoMP for 5G massive MIMO Multilayer Networks. WSA (2015)
Berthold Panzner, Wolfgang Zirwas, Stefan Dierks, Mads Lauridsen, Preben E. Mogensen, Kari Pajukoski, Deshan Miao
Deployment and implementation strategies for massive MIMO in 5G. GLOBECOM Workshops (2014)
Volker Jungnickel, Konstantinos Manolakis, Wolfgang Zirwas, Berthold Panzner, Volker Braun, Moritz Lossow, Mikael Sternad, Rikke Apelfrojd, Tommy Svensson
The role of small cells, coordinated multipoint, and massive MIMO in 5G. IEEE Commun. Mag. 52 (5) (2014)
Stefan Dierks, Gerhard Kramer, Wolfgang Zirwas
Feasibility Conditions of Interference Alignment via Two Orthogonal Subcarriers CoRR (2013)
Stefan Dierks, Gerhard Kramer, Wolfgang Zirwas
Feasibility conditions of interference alignment via two orthogonal subcarriers. ISIT (2013)
Wolfgang Zirwas, Martin Haardt
Channel Prediction for B4G Radio Systems. VTC Spring (2013)
Wolfgang Zirwas, Wolfgang Mennerich, Aneeq Khan
Main enablers for advanced interference mitigation. Trans. Emerg. Telecommun. Technol. 24 (1) (2013)
Nicolas Gresset, Hardy Halbauer, Johannes Koppenborg, Wolfgang Zirwas, Hajer Khanfir
Interference-Avoidance Techniques: Improving Ubiquitous User Experience. IEEE Veh. Technol. Mag. 7 (4) (2012)
Wolfgang Zirwas, Umer Zeeshan, Michael Grieger
Cooperative Feeder Links for Relay Enhanced Networks. EW (2012)
Wolfgang Mennerich, Wolfgang Zirwas
Reporting effort for cooperative systems applying interference floor shaping. PIMRC (2011)
Wolfgang Mennerich, Wolfgang Zirwas
Combined zeroforcing with wideband beamforming for interference mitigation in cooperative cellular radio networks. ISWCS (2011)
Bernhard Raaf, Wolfgang Zirwas, Karl-Josef Friederichs, Esa Tiirola, Matti Laitila, Patrick Marsch, Risto Wichman
Vision for Beyond 4G broadband radio systems. PIMRC (2011)
Wolfgang Mennerich, Wolfgang Zirwas
User Centric Coordinated Multi Point Transmission. VTC Fall (2010)
Wolfgang Mennerich, Wolfgang Zirwas
Implementation issues of the partial CoMP concept. PIMRC (2010)
Lars Thiele, Thomas Wirth, Thomas Haustein, Volker Jungnickel, Egon Schulz, Wolfgang Zirwas
A unified feedback scheme for distributed interference management in cellular systems: Benefits and challenges for real-time implementation. EUSIPCO (2009)
Volker Jungnickel, Malte Schellmann, Lars Thiele, Thomas Wirth, Thomas Haustein, Otto Koch, Wolfgang Zirwas, Egon Schulz
Interference-aware scheduling in the multiuser MIMO-OFDM downlink. IEEE Commun. Mag. 47 (6) (2009)
Rainer Schoenen, Wolfgang Zirwas, Bernhard Walke
Raising Coverage and Capacity using Fixed Relays in a Realistic Scenario. EW (2008)
Volker Jungnickel, Lars Thiele, Malte Schellmann, Thomas Wirth, Andreas Forck, Wolfgang Zirwas, Thomas Haustein, Egon Schulz
Implementation concepts for distributed cooperative transmission. ACSCC (2008)
Jee Hyun Kim, Wolfgang Zirwas, Martin Haardt
Adaptive Codebooks for Efficient Feedback Reduction in Cooperative Antenna Systems. GLOBECOM (2008)
Volker Jungnickel, Thomas Wirth, Malte Schellmann, Thomas Haustein, Wolfgang Zirwas
Synchronization of cooperative base stations. ISWCS (2008)
Jee Hyun Kim, Wolfgang Zirwas, Martin Haardt
Feedback reduction methods for distributed cooperative antenna systems with temporally-correlated channels. EUSIPCO (2008)
Lars Thiele, Malte Schellmann, Stefan Schiffermüller, Volker Jungnickel, Wolfgang Zirwas
Multi-Cell Channel Estimation using Virtual Pilots. VTC Spring (2008)
Jee Hyun Kim, Wolfgang Zirwas, Martin Haardt
Efficient Feedback via Subspace-Based Channel Quantization for Distributed Cooperative Antenna Systems with Temporally Correlated Channels. EURASIP J. Adv. Signal Process. 2008 (2008)
Thomas Haustein, Josef Eichinger, Wolfgang Zirwas, Egon Schulz, Andreas Forck, Holger Gäbler, Volker Jungnickel, Sander Wahls, Christoph Juchems, F. Luhn, R. Zavrtak
MIMO-OFDM for a cellular deployment - Concepts, real-time implementation and measurements towards 3GPP-LTE. EUSIPCO (2007)
Aihua Hong, Christian Schneider, Gerd Sommerkorn, Marko Milojevic, Reiner S. Thomä, Wolfgang Zirwas
Experimental Evaluation of Correlation Properties of Large Scale Parameters in an Indoor LOS Environment. ISWCS (2006)
Tobias Weber, Michael Meurer, Wolfgang Zirwas
Low complexity energy efficient joint transmission for OFDM multiuser downlinks. PIMRC (2004)
Ralf Pabst, Bernhard H. Walke, Daniel C. Schultz, Patrick Herhold, Halim Yanikomeroglu, Sayandev Mukherjee, Harish Viswanathan, Matthias Lott, Wolfgang Zirwas, Mischa Dohler, Hamid Aghvami, David D. Falconer, Gerhard P. Fettweis
Relay-based deployment concepts for wireless and mobile broadband radio. IEEE Commun. Mag. 42 (9) (2004)
Wolfgang Zirwas, Hui Li, Matthias Lott, Martin Weckerle, Egon Schulz, Mattias Lampe
Radio resource management in cellular multihop networks. Eur. Trans. Telecommun. 15 (4) (2004)
Mattias Lampe, Tobias Giebel, Hermann Rohling, Wolfgang Zirwas
Signalling-free detection of adaptive modulation in multicarrier systems. PIMRC (2003)
Wolfgang Zirwas, Jörg Habetha, Holger Karl
Ziel-orientierter Entwurf von Multi-hop Medienzugriffsprotokollen. Prax. Inf.verarb. Kommun. 26 (4) (2003)
Mattias Lampe, Tobias Giebel, Hermann Rohling, Wolfgang Zirwas
Per-prediction for PHY mode selection in OFDM communication systems. GLOBECOM (2003)
Mattias Lampe, Hermann Rohling, Wolfgang Zirwas
Misunderstandings about link adaptation for frequency selective fading channels. PIMRC (2002)
Hui Li, Matthias Lott, Martin Weckerle, Wolfgang Zirwas, Egon Schulz
Multihop communications in future mobile radio networks. PIMRC (2002)
Norbert Esseling, Erik Weiss, Andreas Krämling, Wolfgang Zirwas
Supporting cost efficient public 5 GHz-W-LAN roll out with a multihop HIPERLAN/2 concept. VTC Spring (2002)
Norbert Esseling, Erik Weiss, Andreas Winkler, Wolfgang Zirwas
Supporting the wireless Internet with a HIPERLAN/2 multi hop concept. VTC Fall (2001)
Josef Eichinger, Karl Heinz Möhrmann, Jörg Sommer, Wolfgang Zirwas, Alfred Plattner, Stefan Willke
ATM-based wireless broadband access in the local loop. Int. J. Commun. Syst. 14 (3) (2001)
Martin Wurzer, Josef Böck, Herbert Knapp, Wolfgang Zirwas, Fritz Schumann, Alfred Felder
silicon bipolar technology. IEEE J. Solid State Circuits 34 (9) (1999)