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In collaboration with the universities of Vigo and Barcelona

Macro & Micro Scale Spatial Rain Variation: Dynamic Millimetre Wave Communications in the Presence of Rain. C. Enjamio and E. Vilar. In collaboration with the universities of Vigo and Barcelona. Microwave Telecommunication Systems (MTS) Research Group University of Portsmouth.

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In collaboration with the universities of Vigo and Barcelona

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  1. Macro & Micro Scale Spatial Rain Variation:Dynamic Millimetre Wave Communications in the Presence of Rain C. Enjamio and E. Vilar In collaboration with the universities of Vigo and Barcelona Microwave Telecommunication Systems (MTS) Research Group University of Portsmouth

  2. Dynamic Millimetre Wave Communications in the Presence of Rain. Global Microcell Scenario Fixed Terrestrial and Satellite Systems

  3. Dynamic Millimetre Wave Communications in the Presence of Rain. Global Microcell Scenario Fixed Terrestrial and Satellite Systems

  4. Dynamic Millimetre Wave Communications in the Presence of Rain. Global Microcell Scenario Fixed Terrestrial and Satellite Systems

  5. Dynamic Millimetre Wave Communications in the Presence of Rain. Global Microcell Scenario Fixed Terrestrial and Satellite Systems

  6. Satellite baseline and rain gauges distribution distance (hm) distance (hm) Dynamic Millimetre Wave Communications in the Presence of Rain. Data Base

  7. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=0 min

  8. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=1 min

  9. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=2 min

  10. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=3 min

  11. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=4 min

  12. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=5 min

  13. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=6 min

  14. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=7 min

  15. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=8 min

  16. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution T=9 min

  17. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=0 min

  18. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=1 min

  19. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=2 min

  20. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=3 min

  21. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=4 min

  22. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=5 min

  23. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=6 min

  24. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=7 min

  25. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=8 min

  26. Dynamic Millimetre Wave Communications in the Presence of Rain. Rainfall Rate Spatial Distribution and Time Evolution. Isopleths T=9 min

  27. Slant path attenuation 1 calculated attenuation 2 measured attenuation Fading (dB) 2 1 time (minutes) Dynamic Millimetre Wave Communications in the Presence of Rain. Calculation of attenuation

  28. Dynamic Millimetre Wave Communications in the Presence of Rain. Broadband Wireless Acces; Different Network Topologies • Point to Multipoint or Star Topology • easier to deploy • no routing algorithms • low CPE cost

  29. Dynamic Millimetre Wave Communications in the Presence of Rain. Broadband Wireless Acces; Different Network Topologies • Mesh Topology • reconfigurability • new user • against fading • higher data rates • up to 500 Mbps

  30. 4 GHz 11 GHz 18.1 GHz 30 GHz Dynamic Millimetre Wave Communications in the Presence of Rain. Rain Scattering • Depends on • Raindrop Size Distribution • Mie Scattering Theory for Spherical Particles Radiation pattern of a 1 mm diameter sherical raindrop

  31. Dynamic Millimetre Wave Communications in the Presence of Rain. Calculation of the Interfering Power, Normalised to PTGT Case 1: Omnidirectional Tx antenna SV SV

  32. Dynamic Millimetre Wave Communications in the Presence of Rain. Calculation of the Interfering Power, Normalised to PTGT Case 2: Directional Tx antenna SV

  33. Behaviour of an “Intelligent” System in the Presence of Rain Dynamic Millimetre Wave Communications in the Presence of Rain. The Communications Research Programme Rainfall rate fields R(x,y,t) Calculation of Scattering Attenuation F.O.M. Scattering Bistatic Radar Eq. Antenna Radiation Pattern R.S.D Countermeasures Network topology

  34. Dynamic Millimetre Wave Communications in the Presence of Rain. Expected Outputs • Signal to Interference Ratio Contours • Coordination Distances • Co-existence of Systems Towads an optimal utilisation of the available (allocated?) Spectrum  • Additional Contributions • Fade Statistics • Spatial and Temporal Correlation Between the ITALSAT F40 Beacon Attenuation and Rainfall Rate. • Diversity Improvements • Instrumentation requirements for radio propagation research addressing future Broadband Fixed Wireless Access • Polarisation Effects

  35. Macro & Micro Scale Spatial Rain Variation:Dynamic Millimetre Wave Communications in the Presence of Rain C. Enjamio and E. Vilar In collaboration with the universities of Vigo and Barcelona Microwave Telecommunication Systems (MTS) Research Group University of Portsmouth

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