1. Remcom Inc. 315 S. Allen St., Suite 416  State College, PA 16801  USA Tel: 1-814-861-1299  Fax: 1-814-861-1308  sales@remcom.com  www.remcom.com © 2011 Remcom Inc. All rights reserved. Urban Applications

2. Rosslyn Validation Blind comparisons to measured path loss in Rosslyn, VA at 900 and 1900 MHz Measurements were made using “street level” vertical dipole antennas (10 m high) and vertical polarized directional antennas on rooftops Vertically polarized receiving antenna was mounted on the roof of the van driven along the streets Rosslyn measurements are described in several journal and conference papers

3. High-Rise Area of Rosslyn, VA

4. Rosslyn, Virginia

5. Typical Validation for Rosslyn, VA Comparison of Measurements to “Blind” Predictions

7. Validation: Kent St., Rosslyn, VA Transmitter Site 8, Vertical Dipole, 900 MHz

8. Validation: Lynn St., Rosslyn, VA Transmitter Site 8, Vertical Dipole, 900 MHz

9. Propagation of a 100 ns Pulse in Rosslyn

10. Ottawa Validation

11. Ottawa

12. Ottawa – Albert Street

13. Ottawa – Queen Street

14. Helsinki

15. Helsinki – Route GH

16. Helsinki – Route IJ with Foliage

17. Urban Canyon FDTD calculation Set up a project in the same way as the ray-based calculations Select Urban canyon FDTD propagation model in the study area properties window For best results, choose cells per wavelength of at least 16 (at least 8 cells/wavelength in material with largest dielectric constant)

18. FDTD Calculated RMS Electric Field in Ottawa at 250 MHz

19. UTD Calculated RMS Electric Field in Ottawa at 250 MHz

20. Comparison of FDTD and UTD Calculated Fields at T= 560 ns UTDFDTD

21. Comparison of FDTD and UTD Calculated Fields at T= 950 ns UTDFDTD

22. Ottawa coverage prediction at 250 MHz using FDTD

23. Path Loss Along Laurier Street Calculated by UCFDTD and UTD (2)

24. Path Loss Along Bank Street Calculated by UCFDTD and UTD (2)

25. Effect of Building Materials on Propagation Concrete: ε = 15, σ = 0.05 S/m Brick: ε = 4, σ = 0.05 S/m Glass Window: ε = 2.4, ¼ in. thick Frequency = 900 MHz Fields combined incoherently except for correlated paths near diffraction boundaries