Radiowave Propagation

• Pavel Pechac
• Stanislav Zvanovec
• Robert Urban
• Martin Mudroch
• Ludek Subrt
• Petr Horak
• Milan Kvicera
• Michal Simunek
• Otakar Jicha

Past Members: Martin Klepal, Petr Ledl, Filip Mikas, Pavel Valtr, Jaroslav Holis,

• Radio Propagation and Channel Modeling for UAV Applications in Urban Areas
• Outdoor-to-Indoor Propagation Modeling and Measurement for Satellite and HAP Communications
• Propagation Modeling of Shadowing by Vegetation for Mobile Satcom & Satnav Systems
• Tropospheric Refraction
• Intelligent Infrastructures for Cognitive Networks
• Indoor Propagation Modeling
• High Altitude Platforms and 3G Mobile Systems
• Rain Spatial Classification
• Vegetation Effects on MM-Wave Propagation
• etc.

• WiFEEB - Wireless Friendly Energy Efficient Buildings, FP7 Marie Curie IAPP project No. 286333, Coordinator University of Sheffield, 2012-2014
• Basic Research of Radiometeorology Properties of Tropospheric Ducting Layers by Using Artificial Intelligence Methods, Czech Science Foundation, grant no. P102/10/1901, 2010-2012
• Intelligent Infrastructures for Cognitive Networks, Czech Ministry of Education, Youth and Sports, grant no. OC10005, 2010-2012
• COST Action IC0902, Cognitive Radio and Networking for Cooperative Coexistence of Heterogeneous Wireless Networks, 2009-2013
• Building Penetration Measurement and Modelling for Satellite Communications at L, S and C-Band, ESA PECS project No. 98069, 2009-2010
• Propagation Modeling of Shadowing by Vegetation for Mobile Satcom & Satnav Systems, Czech Ministry of Education, Youth and Sports, grant no. OC09074, 2009-2012
• COST Action IC0802, Propagation tools and data for integrated Telecommunication, Navigation and Earth Observation systems, 2008-2012
• COST Action IC0803, RF/Microwave Communication Subsystems for Emerging Wireless Technologies (RFCSET), 2008-2012
• Advanced Communication Systems and Radiowave Propagation Modelling for High Altitude Platforms, Czech Ministry of Education, Youth and Sports, grant no. OC 092, 2006-2009
• HAPCOS – COST Action 297, High Altitude Platforms for Communications and Other Services, 2005-2009
• Research on Electromagnetic Wave Refraction and Refractivity Height Profiles in Troposphere, Czech Science Foundation, grant no. GA102/07/0955, 2007-2009
• Time-space Simulations of MWS Systems in 42 GHz Band, Czech Science Foundation, grant no. GA102/04/2153, 2004-2006
• Propagation of Electromagnetic Waves in Millimetre Waveband for Advanced Communication Systems, Czech Ministry of Education, Youth and Sports, grant no. OC 280.003, 2003-2005
• 3D Prediction of Electromagnetic Wave Propagation for Wideband Systems Working in MM Bands, CTU Prague, CTU0407013, 2004
• Wide-Band parameters Prediction of Mobile Systems Channel, CTU Prague, CTU0305713, 2003
• Performance and Reliability of Advanced Telecommunication Systems using Millimetre Wavelengths in the Czech Republic, Czech Science Foundation, grant no. GA102/01/0029, 2001-2003
• Propagation Impairment Mitigation for Millimetre Wave Radio Systems, Czech Ministry of Education, Youth and Sports, grant no. OC 280.001, 2001-2003
• Vegetation Influence on Signal Propagation in Millimeter Waveband, CTU Prague, CTU0206913, 2002
• Indoor Propagation Prediction for Wireless Broadband Systems, Czech Science Foundation, grant no. GA102/01/D117, 2001-2003
• Measurement Methods for Attenuation of Walls and Additional Shielding Materials, NBU ST20022002006, 2002
• Theory and Modelling of Electromagnetic Wave Propagation and Design Leading to Reduction of Information Leakage due to Electromagnetic Radiation, NBÚ SU20012001007, 2001
• Signal Propagation inside Buildings for Personal Radiocommunication Systems, Czech Science Foundation, grant no. GA102/99/D099, 1999-2001

• Horak, P. - Pechac, P.: Seasonal Additional Attenuation in Woodlands for Satellite Services at L-, S- and C-Bands, IEEE Transactions on Antennas and Propagation. 2011, vol. 59, no. 12, p. 4865-4867. ISSN 0018-926X.
• Grabner, M.- Kvicera, V. - Pechac, P. - Jicha, O.: Vertical Dependence of Refractive Index Structure Constant in Lowest Troposphere, IEEE Antennas and Wireless Propagation Letters. 2011, vol. 10, p. 1473-1475. ISSN 1536-1225.
• Subrt, L. - Pechac, P.: Advanced 3D indoor propagation model: calibration and implementation, EURASIP Journal on Wireless Communications and Networking 2011. 2011:180, doi:10.1186/1687-1499-2011-180.
• Jicha, O. - Pechac, P. - Kvicera, V. - Grabner, M.: On the Uncertainty of Refractivity Height Profile Measurements, IEEE Antennas and Wireless Propagation Letters. 2011, vol. 10, p. 983-986. ISSN 1536-1225.
• Simunek, M. - Pechac, P. - Fontan, P. F.: Excess Loss Model for Low Elevation Links in Urban Areas for UAVs. Radioengineering. 2011, vol. 20, no. 3, p. 561-568. ISSN 1210-2512.
• Kvicera, M. - Pechac, P.: Building Penetration Loss for Satellite Services at L-, S- and C-band: Measurement and Modeling, IEEE Transactions on Antennas and Propagation. 2011, vol. 59, no. 8, p. 3013-3021. ISSN 0018-926X.
• Zvanovec, S. - Pechac, P: Validation of Rain Spatial Classification for High Altitude Platform Systems, IEEE Transactions on Antennas and Propagation. 2011, vol. 59, no. 7, p. 2746-2750. ISSN 0018-926X.
• Subrt, L. - Pechac, P.: Intelligent Walls as Autonomous Parts of Smart Indoor Environments, IET Communications, Accepted May, 2011.
• Valtr, P. - Pechac, P. - Kvicera, V. - Grabner, M.: Estimation of the Refractivity Structure of the Lower Troposphere from Measurements on a Terrestrial Multiple-Receiver Radio Link, IEEE Transactions on Antennas and Propagation. 2011, vol. 59, no. 5, p. 1707-1715. ISSN 0018-926X.
• Kvicera, M. - Horak, P. - Pechac, P. - Perez-Fontan, F.: On a Definition of Building Penetration Loss for High Elevation Angles, IEEE Transactions on Antennas and Propagation. 2010, vol. 58, no. 12, p. 4115-4118. ISSN 0018-926X.
• Subrt, L. - Grace, D. - Pechac, P.: Controlling the Short-Range Propagation Environment Using Active Frequency Selective Surfaces. Radioengineering. 2010, vol. 19, no. 4, p. 610-615. ISSN 1210-2512.
• Subrt, L. - Pechac, P.: Semi-Deterministic Propagation Model for Subterranean Galleries and Tunnels, IEEE Transactions on Antennas and Propagation. 2010, vol. 58, no. 11, p. 3701-3706. ISSN 0018-926X.
• Urban, R. - Grace, D. - Pechac, P.: Impulse Radio UWB Pulse Shaping for Cognitive Radio Applications, Springer Wireless Personal Communications, DOI: 10.1007/s11277-010-0158-6, Accepted 2010.
• Holis, J. - Grace, D. - Pechac, P.: Effect of Antenna Power Roll-Off on the Performance of 3G Cellular Systems from High Altitude Platforms, IEEE Transactions on Aerospace and Electronic Systems. 2010, vol. 46, no. 3, p. 1468-1477. ISSN 0018-9251.
• Horak, P. - Kvicera, M. - Pechac, P.: Frequency Dependence of Attenuation Due to Vegetation for Satellite Services. IEEE Antennas and Wireless Propagation Letters. 2010, vol. 9, p. 142-145. ISSN 1536-1225.
• Valtr, P. - Pechac, P. - Kvicera, V. - Grabner, M.: A Terrestrial Multiple-Receiver Radio Link Experiment at 10.7 GHz - Comparisons of Results with Parabolic Equation Calculations. Radioengineering. 2010, vol. 19, no. 1, Part II, p. 117-121. ISSN 1210-2512.
• Holis, J. - Pechac, P.: Elevation Dependent Shadowing Model for Mobile Communications via High Altitude Platforms in Built-Up Areas. IEEE Transactions on Antennas and Propagation. 2008, vol. 56, no. 4, p. 1078-1084. ISSN 0018-926X.
• Holis, J. - Pechac, P.: Coexistence of Terrestrial and HAP 3G Networks during Disaster Scenarios. Radioengineering. 2008, vol. 17, no. 4, Part II, p. 1-7. ISSN 1210-2512.
• Holis, J. - Pechac, P.: Provision of 3G Mobile Services in Sparsely Populated Areas Using High Altitude Platforms. Radioengineering. 2008, vol. 17, no. 1, p. 43-49. ISSN 1210-2512.
• Zvanovec, S. - Piksa, P. - Mazanek, M. - Pechac, P.: A Study of Gas and Rain Propagation Effects at 48 GHz for HAP Scenarios, EURASIP Journal on Wireless Communications and Networking. vol. 2008, Article ID 734216, 7 pages, 2008. doi:10.1155/2008/734216.
• Holis, J. - Pechac, P.: Penetration Loss Measurement and Modeling for HAP Mobile Systems in Urban Environment. EURASIP Journal on Wireless Communications and Networking, vol. 2008, Article ID 543290, 7 pages, 2008. doi:10.1155/2008/543290.
• Valtr, P. - Pechac, P.: Domain Decomposition Algorithm for Complex Boundary Modeling using the Fourier Split-Step Parabolic Equation. IEEE Antennas and Wireless Propagation Letters. 2007, vol. 6, no. 1, p. 152-155. ISSN 1536-1225.
• Rak, M. - Pechac, P.: UHF Propagation in Caves and Subterranean Galleries. IEEE Transactions on Antennas and Propagation. 2007, vol. 55, no. 4, p. 1134-1138. ISSN 0018-926X.
• Zvanovec, S. - Pechac, P.: Rain Spatial Classification for Availability Studies of Point-to-Multipoint Systems. IEEE Transactions on Antennas and Propagation. 2006, vol. 54, no. 12, p. 3789-3796. ISSN 0018-926X.
• Hudec, P. - Polivka, M. - Pechac, P.: Microwave System for the Detection and Localization of Mobile Phones in Large Buildings. IEEE Transactions on Microwave Theory and Techniques. 2005, vol. 53, no. 6, p. 2235-2239. ISSN 0018-9480.
• Holis, J. - Pechac, P.: Simulation of UMTS Capacity and Quality of Coverage in Urban Macro- and Microcellular Environment. Radioengineering. 2005, vol. 14, no. 4, p. 21-26. ISSN 1210-2512.
• Valtr, P. - Pechac, P.: The Influence of Horizontally Variable Refractive Index Height Profile on Radio Horizon Range. IEEE Antennas and Wireless Propagation Letters. 2005, vol. 4, no. 1, p. 489-491. ISSN 1536-1225.
• Valtr, P. - Pechac, P.: Tropospheric Refraction Modeling Using Ray-Tracing and Parabolic Equation. Radioengineering. 2005, vol. 14, no. 4, p. 98-104. ISSN 1210-2512.
• Valtr, P. - Pechac, P.: Diffraction Calculations and Measurements in Millimeter Frequency Band. Radioengineering. 2004, vol. 13, no. 3, p. 18-21. ISSN 1210-2512.
• Ledl, P. - Pechac, P.: Comparative Evaluation of UMTS, WLAN, BWA, MBWA and UWB Systems. Radioengineering. 2003, vol. 12, no. 4, p. 74-83. ISSN 1210-2512.
• Zvanovec, S. - Pechac, P. - Klepal, M.: Wireless LAN Networks Design: Site Survey or Propagation Modeling?. Radioengineering. 2003, vol. 12, no. 4, p. 42-49. ISSN 1210-2512.
• Ledl, P. - Pechac, P.: Area Coverage Simulations for Millimeter Point-to-Multipoint Systems Using Statistical Model of Building Blockage. Radioengineering. 2002, vol. 11, no. 4, p. 43-47. ISSN 1210-2512.
• Pechac, P.: Electromagnetic Wave Propagation Modeling Using the ANT Colony Optimization Algorithm. Radioengineering. 2002, vol. 11, no. 3, p. 1-6. ISSN 1210-2512.
• Valek, M. - Zvanovec, S. - Pechac, P.: Indoor Propagation Measurement for Wireless Systems Operating in 2.45 GHz ISM Band. Radioengineering. 2002, vol. 11, no. 4, p. 48-52. ISSN 1210-2512.
• Pechac, P. - Klepal, M. - Zvanovec, S.: Results of Indoor Propagation Measurement Campaign at 1900 MHz. Radioengineering. 2001, vol. 10, no. 4, p. 2-4. ISSN 1210-2512.
• Pechac, P. - Klepal, M.: Empirical Models for Indoor Propagation in CTU Prague Buildings. Radioengineering. 2000, vol. 9, no. 1, p. 31-36. ISSN 1210-2512.
• Pechac, P. - Klepal, M. - Novotny, K.: Novel Approach to Indoor Propagation Modelling. Radioengineering. 2000, vol. 9, no. 3, p. 12-16. ISSN 1210-2512.

• Pechac, P. - Zvanovec, S.: Principles of Radiowave Propagation for Planning of Terrestrial Radio Links. 1. ed. Praha: BEN - technicka literatura, 2007. 200 p. ISBN 978-80-7300-223-7. (in Czech).
• Pechac, P.: Radiowave Propagation in Build-Up Areas - Models for Planning of Mobile Wireless Systems. 1. ed. Praha: BEN - technicka literatura, 2006. 108 p. ISBN 80-7300-186-1. (in Czech).

• Selected Conference Papers