Startseite Veröffentlichungen Christian Hofmann

 

Christian Hofmann

Dipl.-Ing.


Veröffentlichungen

  • Storek, K.-U.; Hofmann, C.A.; Knopp, A.: Impact of the Atmosphere on the Signal Phase and the Channel Capacity in EHF MIMO Satellite Links. 2015 IEEE Global Communications Conference (GLOBECOM), San Diego, USA, December 2015.
  • Hofmann, C.A.; Schwarz, R.T.; Knopp, A.: Performance Analysis of Diversity Techniques for Secure SATCOM-on-the-Move Systems. Milcom 2015, Tampa, USA, October 2015.
  • Storek, K.-U.; Hofmann, C.A.; Knopp, A.: Measurements of Phase Fluctuations for Reliable MIMO Space Communications. 2015 IEEE Asia Pacific Conference on Wireless and Mobile, Bandung, Indonesia, August 2015.
  • Hofmann, C. A.; Schwarz, R. T.; Knopp, A.: Measurement and Modeling of the UHF Satellite Channel for Animal Tracking Systems. IEEE International Conference on Communications (ICC), London, United Kingdom, June 8-12, 2015.
  • Hofmann, C. A.; Knopp, A.; Schwarz, R. T.: SOTM Measurements for the Characterization of the Wideband Mobile Satellite Channel at Ku-Band. 10th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, February 2-5, 2015.
  • Dantona, V.; Hofmann, C. A.; Lattrell, S.; Lankl, B.: Spectrally Efficient Multilevel CPM Waveforms for VHF Narrowband Communications. 10th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, February 2-5, 2015.
  • Storek, K.-U.; Hofmann, C. A.; Knopp, A.: Review of the Tropospheric Influence on the Signal Phase in EHF MIMO Satellite Links. 20th Ka and Broadband Communications, Navigation and Earth Observation Conference, Salerno / Vietri, Italy, October 1-3, 2014.
  • C.A. Hofmann, D. Ogermann, B. Lankl, "Measurement Results for the Comparison of Multiple and Single Polarized MIMO Channels in LOS, NLOS, Indoor and Outdoor Scenarios", 17th International ITG Workshop on Smart Antennas 2013 (WSA 2013), Stuttgart, Germany Mar. 2013
  • M. Ivrlač, B. Lehmeyer, J.A. Nossek, C.A. Hofmann, B. Lankl, "Estimation of Noise Parameters in Multi-Antenna Receivers using Digitized Signal Samples", 17th International ITG Workshop on Smart Antennas 2013 (WSA 2013), Stuttgart, Germany Mar. 2013
  • C.A. Hofmann, A. Knopp, B. Lankl, "Indoor LOS MIMO Channel Measurements with a Focus on Antenna Array Design", IEEE Global Communications Conference (GLOBECOM 2010), Miami, FL, USA, Dec. 6-10 2010.
  • C.A. Hofmann, A. Knopp, D. Ogermann, B. Lankl, "Amplify-and-Forward Relay Stations in Correlated Line-of-Sight MIMO Channels", 20th Personal, Indoor and Mobile Radio Communications Symposium (PIMRC'09), Tokyo, Japan, Sep. 2009.
  • R.T. Schwarz, A. Knopp, D. Ogermann, C.A. Hofmann and B. Lankl, "On the Prospects of MIMO SatCom Systems: The Tradeoff between Capacity and Practical Effort",  6-th Multi-Conferene on Signals, Systems & Devices (SSD'09), Djerba, Tunisia, March 2009.
  • C.A. Hofmann and A. Knopp, Modeling and Analysis of Capacity-Optimal Indoor MIMO Wireless Channels, book chapter contribution in "4G Wireless & Mobile Communication Technologies", River Publishers' Series in Communications, 2008, ISBN: 978-8792329028. 
  • A. Knopp, C.A. Hofmann, M. Chouayakh, B. Lankl, 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, in International Journal "Wireless Personal Communications" (Journal Number 11277), Springer US, Mai 2008.
  • A. Knopp, R.T. Schwarz, B. Lankl, D.Ogermann, C.A. Hofmann, Satellite System Design Examples for Maximum MIMO Spectral Efficiency in LOS Channels, Global Communications Conference 2008 (GLOBECOM'08), Nov. 2008, New Orleans, USA.
  • C.A. Hofmann, A. Knopp, D. Ogermann, R. Schwarz and B. Lankl, Deficiencies of Common MIMO Channel Models with Regard to Indoor Line-of-Sight Channels, The annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications 2008 (PIMRC 2008), September 15-18, Cannes, France.
  • R. Schwarz, A. Knopp, D. Ogermann, B. Lankl and C.A. Hofmann, "Optimum-Capacity MIMO Satellite Broadcast System: Conceptual Design for LOS Channels", Fourth Advanced Satellite Mobile Systems Conference 2008 (ASMS 08), August 26-28, Bologna, Italy.
  • R. Schwarz, A. Knopp, D. Ogermann, C.A. Hofmann and B. Lankl, "Optimum-Capacity MIMO Satellite Link for Fixed and Mobile Services", accepted for publication in the Workshop on Smart Antennas - WSA 2008,  26.-27. Feb. 2008, Darmstadt, Germany.
  • A. Knopp, C.A. Hofmann, R.T. Schwarz,  M. Chouayakh, B. Lankl, "Spatial Capacity Estimation for Correlated MIMO Channels Based on Measured SISO Data Records". IEEE International Symposium on Wireless Communication Systems 2007 (ISWCS 2007), Oct. 17-19, Trondheim, Norway.
  • A. Knopp, R.T. Schwarz, C.A. Hofmann,  M. Chouayakh, B. Lankl, "Measurements on the Impact of Sparse Multipath Components on the LOS MIMO Channel Capacity". IEEE International Symposium on Wireless Communication Systems 2007 (ISWCS 2007), Oct. 17-19, Trondheim, Norway.
  • A. Knopp, C.A. Hofmann, M. Chouayakh, B. Lankl, "Exploiting Single SISO Impulse Responses to Predict the Capacity of Correlated MIMO Channels", 50-th IEEE Global Communications Conference (GLOBECOM 2007), Nov. 26-30, Washington D.C., USA.
  • A. Knopp, C. A. Hofmann, M. Chouayakh,  B.Lankl, "Extension of Indoor SISO Propagation Models for Correlated MIMO Channels - an Exemplification Applying Saleh's Model", The 18th Annual International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC 2007), Sep. 3-7, 2007, Athens, Greece.
  • A. Knopp, Ch. Hofmann, M. Chouayakh, B. Lankl, "Measured Impact of Antenna Setup and Transmission Bandwidth on the MIMO Spectral Efficiency in Large-Scale and Small-Scale In-Room Scenarios", WPMC 2006, Sept. 17 - 20, San Diego (CA, USA).