Christian A. Hofmann

According to our database, Christian A. Hofmann authored at least 35 papers between 2007 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Turbo Receiver for Short-Block-Length Polar-Coded Direct-Access Satellite-IoT Systems.

Ali Eltohamy, Christian A. Hofmann, Andreas Knopp, Matthias Korb

Proceedings of the IEEE International Mediterranean Conference on Communications and Networking, 2024

2023

A Techno-Economic Assessment and Tradespace Exploration of Low Earth Orbit Mega-Constellations.

Kevin T. Li, Christian A. Hofmann, Harald Reder, Andreas Knopp

IEEE Commun. Mag., February, 2023

Blind Geolocation of RF-Signals with LEO Satellite Formations.

Daniel Weinzierl, Christian A. Hofmann, Andreas Knopp

Proceedings of the IEEE Military Communications Conference, 2023

2022

Distributed Resource Optimization for NOMA Transmission in Beamforming SATCOM.

Yazhou Zhu, Christian A. Hofmann, Andreas Knopp

IEEE J. Sel. Areas Commun., 2022

Phase Noise Limits in Low-Rate Communication via Satellite.

Christian A. Hofmann, Andreas Knopp

IEEE Internet Things J., 2022

Ka-Band LEO Satellite Internet of Things Channel Characterization: Survey and Measurement.

Yazhou Zhu, Christian A. Hofmann, Andreas Knopp

Proceedings of the IEEE International Conference on Communications, 2022

Machine Learning-based Flexible Payload Power Resource Allocation for Non-orthogonal SATCOM.

Yazhou Zhu, Christian A. Hofmann, Andreas Knopp

Proceedings of the IEEE Global Communications Conference, 2022

2021

Techno-Economic Design Aspects of Satellite Mega-Constellations for 6G Services.

Kevin T. Li, Christian A. Hofmann, Florian Völk, Andreas Knopp

Proceedings of the 94th IEEE Vehicular Technology Conference, 2021

Performance Optimization for Multi-Gateway NOMA-Beamforming in Multi-Beam SATCOM.

Yazhou Zhu, Christian A. Hofmann, Andreas Knopp

Proceedings of the ICC 2021, 2021

Impact of Phase Noise and Oscillator Stability on Ultra-Narrow-Band-IoT Waveforms for Satellite.

Christian A. Hofmann, Kai-Uwe Storek, Andreas Knopp

Proceedings of the ICC 2021, 2021

2020

Tracking of Remote IoT Devices by Satellite Assisted Geolocation.

Christian A. Hofmann, Andreas Knopp

Proceedings of the 2020 IEEE International Conference on Communications, 2020

2019

Ultranarrowband Waveform for IoT Direct Random Multiple Access to GEO Satellites.

Christian A. Hofmann, Andreas Knopp

IEEE Internet Things J., 2019

Direct Access to GEO Satellites: An Internet of Remote Things Technology.

Christian A. Hofmann, Andreas Knopp

Proceedings of the 2nd IEEE 5G World Forum, 5GWF 2019, Dresden, Germany, September 30, 2019

2018

Satellite Downlink Jamming Propagation Measurements at Ku-Band.

Christian A. Hofmann, Andreas Knopp

Proceedings of the 2018 IEEE Military Communications Conference, 2018

2017

The multiple-satellite MIMO channel of narrow band vehicular communications at UHF.

Robert T. Schwarz, Florian Völk, Andreas Knopp, Christian A. Hofmann, Kai-Uwe Storek

Proceedings of the 2017 IEEE Military Communications Conference, 2017

Joint MMSE precoder and equalizer for massive MIMO using 1-bit quantization.

Ovais Bin Usman, Josef A. Nossek, Christian A. Hofmann, Andreas Knopp

Proceedings of the IEEE International Conference on Communications, 2017

2016

Results of a MIMO Testbed with Geosynchronous Ku-Band Satellites.

Robert T. Schwarz, Christian A. Hofmann, Andreas Knopp

Proceedings of the WSA 2016, 2016

Antenna diversity techniques for enhanced jamming resistance in multi-beam satellites.

Stephan P. Winter, Christian A. Hofmann, Andreas Knopp

Proceedings of the 2016 IEEE Military Communications Conference, 2016

Spatial MIMO over satellite: A proof of concept.

Christian A. Hofmann, Kai-Uwe Storek, Robert T. Schwarz, Andreas Knopp

Proceedings of the 2016 IEEE International Conference on Communications, 2016

2015

Interferometer for Measurements of the MIMO Satellite Channel at Ku-Band.

Kai-Uwe Storek, Christian A. Hofmann, Andreas Knopp

Proceedings of the IEEE 82nd Vehicular Technology Conference, 2015

Performance analysis of diversity techniques for secure SATCOM-on-the-move systems.

Christian A. Hofmann, Robert T. Schwarz, Andreas Knopp

Proceedings of the 34th IEEE Military Communications Conference, 2015

Measurement and modeling of the UHF satellite channel for animal tracking systems.

Christian A. Hofmann, Robert T. Schwarz, Andreas Knopp

Proceedings of the 2015 IEEE International Conference on Communications, 2015

Impact of the Atmosphere on the Signal Phase and the Channel Capacity in EHF MIMO Satellite Links.

Kai-Uwe Storek, Christian A. Hofmann, Andreas Knopp

Proceedings of the 2015 IEEE Global Communications Conference, 2015

2013

Estimation of Noise Parameters in Multi-Antenna Receivers using Digitized Signal Samples.

Michel T. Ivrlac, Bernhard Lehmeyer, Josef A. Nossek, Christian A. Hofmann, Berthold Lankl

Proceedings of the 17th International ITG Workshop on Smart Antennas, 2013

Measurement Results for the Comparison of Multiple and Single Polarized MIMO Channels in LOS, NLOS, Indoor and Outdoor Scenarios.

Christian A. Hofmann, Dirk Ogermann, Berthold Lankl

Proceedings of the 17th International ITG Workshop on Smart Antennas, 2013

2010

Measurement Survey on the Antenna Configuration Impact on the Spectral Efficiency of MIMO Radio Channels: Analyzed with a Focus on Low-Mobility, Indoor Line-of-Sight Channels.

Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl

Wirel. Pers. Commun., 2010

Indoor LOS MIMO Channel Measurements with a Focus on Antenna Array Design.

Christian A. Hofmann, Andreas Knopp, Berthold Lankl

Proceedings of the Global Communications Conference, 2010

2009

Amplify-and-forward relay stations in correlated line-of-sight indoor MIMO channels.

Christian A. Hofmann, Andreas Knopp, Dirk Ogermann, Berthold Lankl

Proceedings of the IEEE 20th International Symposium on Personal, 2009

2008

Optimum-capacity MIMO satellite link for fixed and mobile services.

Robert T. Schwarz, Andreas Knopp, Dirk Ogermann, Christian A. Hofmann, Berthold Lankl

Proceedings of the 2008 International ITG Workshop on Smart Antennas, 2008

Deficiencies of common MIMO channel models with regard to indoor Line-of-Sight channels.

Christian A. Hofmann, Andreas Knopp, Dirk Ogermann, Robert T. Schwarz, Berthold Lankl

Proceedings of the IEEE 19th International Symposium on Personal, 2008

Satellite System Design Examples for Maximum MIMO Spectral Efficiency in LOS Channels.

Andreas Knopp, Robert T. Schwarz, Dirk Ogermann, Christian A. Hofmann, Berthold Lankl

Proceedings of the Global Communications Conference, 2008. GLOBECOM 2008, New Orleans, LA, USA, 30 November, 2008

2007

Extension of Indoor SISO Propagation Models for Correlated MIMO Channels - An Exemplification Applying Saleh's Model.

Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl

Proceedings of the IEEE 18th International Symposium on Personal, 2007

Measurements on the Impact of Sparse Multipath Components on the LOS MIMO Channel Capacity.

Andreas Knopp, Robert T. Schwarz, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl

Proceedings of the 4th IEEE International Symposium on Wireless Communication Systems, 2007

Spatial Capacity Estimation for Correlated MIMO Channels Based on Measured SISO Data Records.

Andreas Knopp, Christian A. Hofmann, Robert T. Schwarz, Mohamed Chouayakh, Berthold Lankl

Proceedings of the 4th IEEE International Symposium on Wireless Communication Systems, 2007

Exploiting Single SISO Impulse Responses to Predict the Capacity of Correlated MIMO Channels.

Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl

Proceedings of the Global Communications Conference, 2007