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

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

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

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

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

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

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

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

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

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

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

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

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

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

In collaboration with the universities of Vigo and Barcelona

In collaboration with the universities of Vigo and Barcelona

Presentation Transcript

In Collaboration with:

Universities in the 21st Century: Funding of Universities

Expectation of collaboration between Kyoto University and universities in ASEAN

in collaboration with

in collaboration with

IMEC-Leuven, Belgium Collaboration with Flemish Universities and Local Industry

In collaboration with

SD in Universities - examples from Barcelona

Collaboration between Universities and NTT

In Collaboration with

In collaboration with:

Reducing the funding gap of universities in EU and financial management of universities

ATPAC – Thai Universities Collaboration in Environmental Science, Engineering and Management

Universities and Local Partnership Collaboration in Innovation

In collaboration with

In collaboration with

In collaboration with:

in collaboration with

In collaboration with

In collaboration with

Streets in the City of Barcelona with Frontier Airlines