Christian A. Hofmann

42 papers B 8Journal 7Unranked 27

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Energy-Aware Protocol Design and Evaluation of the PHY Layer in Satellite IoT. Int. J. Satell. Commun. Netw. Simon Heine, Christian A. Hofmann, Andreas Knopp
2025	—	`conf`	Propagation Measurements and Models for 14 GHz FR3 and Starlink Coexistence. ICC Kevin T. Li, Christian A. Hofmann, Andreas Knopp
2025	—	`conf`	Simulation and Comparison of Vehicle Satellite Connectivity under a 3D Foliage Environment: Starlink and OneWeb. LEO-NET Kevin T. Li, Christian A. Hofmann, Andreas Knopp
2025	J	`jnl`	Survey on Opportunistic PNT With Signals From LEO Communication Satellites. IEEE Commun. Surv. Tutorials Winfried Stock, Robert T. Schwarz, Christian A. Hofmann, Andreas Knopp
2025	—	`conf`	Time, Frequency, and Phase Synchronization in Satellite Swarms. ICC Daniel Weinzierl, Christian A. Hofmann, Andreas Knopp
2024	—	`conf`	Correlation-Based Doppler Shift Estimation for Opportunistic LEO-PNT With Starlink Signals. WiSEE Winfried Stock, Christian A. Hofmann, Andreas Knopp
2024	—	`conf`	Evaluation and Analysis of Interference in NGSO Mega-Constellations in a Multi-Beam Satellite Scenario. VTC Fall Kevin T. Li, Christian A. Hofmann, Andreas Knopp
2024	—	`conf`	Turbo Receiver for Short-Block-Length Polar-Coded Direct-Access Satellite-IoT Systems. MeditCom Ali Eltohamy, Christian A. Hofmann, Andreas Knopp, Matthias Korb
2023	J	`jnl`	A Techno-Economic Assessment and Tradespace Exploration of Low Earth Orbit Mega-Constellations. IEEE Commun. Mag. Kevin T. Li, Christian A. Hofmann, Harald Reder, Andreas Knopp
2023	—	`conf`	Blind Geolocation of RF-Signals with LEO Satellite Formations. MILCOM Daniel Weinzierl, Christian A. Hofmann, Andreas Knopp
2022	J	`jnl`	Distributed Resource Optimization for NOMA Transmission in Beamforming SATCOM. IEEE J. Sel. Areas Commun. Yazhou Zhu, Christian A. Hofmann, Andreas Knopp
2022	—	`conf`	Ka-Band LEO Satellite Internet of Things Channel Characterization: Survey and Measurement. ICC Yazhou Zhu, Christian A. Hofmann, Andreas Knopp
2022	B	`conf`	Machine Learning-based Flexible Payload Power Resource Allocation for Non-orthogonal SATCOM. GLOBECOM Yazhou Zhu, Christian A. Hofmann, Andreas Knopp
2022	J	`jnl`	Phase Noise Limits in Low-Rate Communication via Satellite. IEEE Internet Things J. Christian A. Hofmann, Andreas Knopp
2021	—	`conf`	Impact of Phase Noise and Oscillator Stability on Ultra-Narrow-Band-IoT Waveforms for Satellite. ICC Christian A. Hofmann, Kai-Uwe Storek, Andreas Knopp
2021	—	`conf`	Performance Optimization for Multi-Gateway NOMA-Beamforming in Multi-Beam SATCOM. ICC Yazhou Zhu, Christian A. Hofmann, Andreas Knopp
2021	—	`conf`	Techno-Economic Design Aspects of Satellite Mega-Constellations for 6G Services. VTC Fall Kevin T. Li, Christian A. Hofmann, Florian Völk, Andreas Knopp
2020	—	`conf`	Tracking of Remote IoT Devices by Satellite Assisted Geolocation. ICC Christian A. Hofmann, Andreas Knopp
2019	—	`conf`	Direct Access to GEO Satellites: An Internet of Remote Things Technology. 5G World Forum Christian A. Hofmann, Andreas Knopp
2019	J	`jnl`	Ultranarrowband Waveform for IoT Direct Random Multiple Access to GEO Satellites. IEEE Internet Things J. Christian A. Hofmann, Andreas Knopp
2018	—	`conf`	Satellite Downlink Jamming Propagation Measurements at Ku-Band. MILCOM Christian A. Hofmann, Andreas Knopp
2017	—	`conf`	Joint MMSE precoder and equalizer for massive MIMO using 1-bit quantization. ICC Ovais Bin Usman, Josef A. Nossek, Christian A. Hofmann, Andreas Knopp
2017	—	`conf`	The multiple-satellite MIMO channel of narrow band vehicular communications at UHF. MILCOM Robert T. Schwarz, Florian Völk, Andreas Knopp, Christian A. Hofmann, Kai-Uwe Storek
2016	—	`conf`	Antenna diversity techniques for enhanced jamming resistance in multi-beam satellites. MILCOM Stephan P. Winter, Christian A. Hofmann, Andreas Knopp
2016	—	`conf`	Results of a MIMO Testbed with Geosynchronous Ku-Band Satellites. WSA Robert T. Schwarz, Christian A. Hofmann, Andreas Knopp
2016	—	`conf`	Spatial MIMO over satellite: A proof of concept. ICC Christian A. Hofmann, Kai-Uwe Storek, Robert T. Schwarz, Andreas Knopp
2015	B	`conf`	Impact of the Atmosphere on the Signal Phase and the Channel Capacity in EHF MIMO Satellite Links. GLOBECOM Kai-Uwe Storek, Christian A. Hofmann, Andreas Knopp
2015	—	`conf`	Interferometer for Measurements of the MIMO Satellite Channel at Ku-Band. VTC Fall Kai-Uwe Storek, Christian A. Hofmann, Andreas Knopp
2015	—	`conf`	Measurement and modeling of the UHF satellite channel for animal tracking systems. ICC Christian A. Hofmann, Robert T. Schwarz, Andreas Knopp
2015	—	`conf`	Performance analysis of diversity techniques for secure SATCOM-on-the-move systems. MILCOM Christian A. Hofmann, Robert T. Schwarz, Andreas Knopp
2013	—	`conf`	Estimation of Noise Parameters in Multi-Antenna Receivers using Digitized Signal Samples. WSA Michel T. Ivrlac, Bernhard Lehmeyer, Josef A. Nossek, Christian A. Hofmann, Berthold Lankl
2013	—	`conf`	Measurement Results for the Comparison of Multiple and Single Polarized MIMO Channels in LOS, NLOS, Indoor and Outdoor Scenarios. WSA Christian A. Hofmann, Dirk Ogermann, Berthold Lankl
2010	B	`conf`	Indoor LOS MIMO Channel Measurements with a Focus on Antenna Array Design. GLOBECOM Christian A. Hofmann, Andreas Knopp, Berthold Lankl
2010	J	`jnl`	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. Wirel. Pers. Commun. Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl
2009	B	`conf`	Amplify-and-forward relay stations in correlated line-of-sight indoor MIMO channels. PIMRC Christian A. Hofmann, Andreas Knopp, Dirk Ogermann, Berthold Lankl
2008	B	`conf`	Deficiencies of common MIMO channel models with regard to indoor Line-of-Sight channels. PIMRC Christian A. Hofmann, Andreas Knopp, Dirk Ogermann, Robert T. Schwarz, Berthold Lankl
2008	—	`conf`	Optimum-capacity MIMO satellite link for fixed and mobile services. WSA Robert T. Schwarz, Andreas Knopp, Dirk Ogermann, Christian A. Hofmann, Berthold Lankl
2008	B	`conf`	Satellite System Design Examples for Maximum MIMO Spectral Efficiency in LOS Channels. GLOBECOM Andreas Knopp, Robert T. Schwarz, Dirk Ogermann, Christian A. Hofmann, Berthold Lankl
2007	B	`conf`	Exploiting Single SISO Impulse Responses to Predict the Capacity of Correlated MIMO Channels. GLOBECOM Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl
2007	B	`conf`	Extension of Indoor SISO Propagation Models for Correlated MIMO Channels - An Exemplification Applying Saleh's Model. PIMRC Andreas Knopp, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl
2007	—	`conf`	Measurements on the Impact of Sparse Multipath Components on the LOS MIMO Channel Capacity. ISWCS Andreas Knopp, Robert T. Schwarz, Christian A. Hofmann, Mohamed Chouayakh, Berthold Lankl
2007	—	`conf`	Spatial Capacity Estimation for Correlated MIMO Channels Based on Measured SISO Data Records. ISWCS Andreas Knopp, Christian A. Hofmann, Robert T. Schwarz, Mohamed Chouayakh, Berthold Lankl