Data and More Data: Inputs to Modern Propagation ...Introduction • EDX Wireless – 30 years of...
Transcript of Data and More Data: Inputs to Modern Propagation ...Introduction • EDX Wireless – 30 years of...
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Next Generation Wireless Design
Data and More Data: Inputs to Modern Propagation
Prediction Tools
Dr. Roger Skidmore EDX Technologies, Inc.
July 25, 2019
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Next Generation Wireless Design
Introduction
• EDX Wireless – 30 years of network planning – FM radio to LMDS and beyond
• Data demand has not changed much over
30 years – Same basic data needed then is the same now
• Data availability and resolution has changed
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Next Generation Wireless Design
Wireless Network Planning
RF / Wireless Network Technologies Propagation Models /
Theory
Data
Wireless Design Tools
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Next Generation Wireless Design
Wireless Network Planning
RF / Wireless Network Technologies Propagation Models /
Theory
Data
Wireless Design Tools
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Next Generation Wireless Design
Wireless Network Planning
RF / Wireless Network Technologies Propagation Models /
Theory
Data
Wireless Design Tools
LTE, HetNet, 5G, IoT, Mesh, CBRS, PtP, LoRA, RPMA, PMP, 802.xx, Broadcast, …
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Next Generation Wireless Design
Wireless Network Planning
RF / Wireless Network Technologies Propagation Models /
Theory
Data
Wireless Design Tools
Academia Industry Standards Bodies Government
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Next Generation Wireless Design
Wireless Network Planning
RF / Wireless Network Technologies Propagation Models /
Theory
Data
Wireless Design Tools
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Next Generation Wireless Design
Way Back When…
• The early ‘80s – 1G cellular: the first cell towers! – What was the best cell planning tool?
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Next Generation Wireless Design
Way Back When…
• The early ‘80s – 1G cellular: the first cell towers! – Geodata == Rand McNally
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Next Generation Wireless Design
Software Tools
• Raj Singh/LCC (‘83), Harry Anderson/EDX Wireless (‘85), RadioSoft (’85), etc.
• Leveraged existing computerized geodata to improve the planning process
• The better the data, the greater the improvement
• Treadmill: network operators began wanting more data, better data
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Next Generation Wireless Design
Present Day: Data, More Data!
• Explosion in available data useful for wireless network planning
• Data availability has exceeded wireless planning tool capabilities
• In many cases, readily available data is overkill for what is needed – “Useful” is subjective
•Cost is King
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Next Generation Wireless Design
Fundamental: Physical Environment
• Elevation – 30m ~ 10m resolution common today – Higher resolution usually not needed – Rarely changes significantly
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Next Generation Wireless Design
Fundamental: Physical Environment
• Clutter / Land Use – 30m ~ 10m common today
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Next Generation Wireless Design
Fundamental: Physical Environment
• Clutter / Land Use – Higher resolution (1m)
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Next Generation Wireless Design
Fundamental: Physical Environment
• Clutter / Land Use
30m resolution 1m resolution
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Next Generation Wireless Design
Fundamental: Physical Environment
• In urban / suburban areas, clutter / land use could be constantly changing – Higher resolution changes more than lower resolution – Regular updates to clutter / land use more important
as resolution increases
• Assigning height to clutter categories allows for some degree of 3D overtop of elevation
• Problem: number of clutter categories may stay the same between low and high resolutions – Significant impact on direct application of higher res
clutter data in planning tools
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Next Generation Wireless Design
Fundamental: Physical Environment
• Digital Surface Model (DSM) – 1m resolution available today
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Next Generation Wireless Design
Fundamental: Physical Environment
• Vectorized buildings, foliage – 30cm resolution (and better)
available today
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Next Generation Wireless Design
Fundamental: Physical Environment
• 3D Vector Inbuilding Data
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Next Generation Wireless Design
Measurements and More Measurements
• Drive test or walk test data extremely valuable for design confidence
• Empirically-derived propagation models tuned by measurements – Measurements allow for site-specific tuning of
propagation model – Over time, number of propagation model parameters
have grown significantly • Tuning may be absolutely required in some cases • Transportability of tuned model parameters less likely as
resolution of clutter data increases
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Next Generation Wireless Design
Additional Data
• Fixed network access points – Towers – Light Poles – Fiber drops
• Socio-economic, Census data • Usage data • Key usage zones
– Sports arenas, shopping centers, hospitals, schools, airports, rail stations, etc.
• Traffic – Vehicle and pedestrian
• Weather / Seasonal effects • Infrastructure elements
– More and more complex every quarter
• Miscellaneous
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Next Generation Wireless Design
Resolution, Rate Drivers • More than ever non-wireless technologies and
markets are impacting geodata availability – Traditional satellite imaging – Augmented Reality (point-cloud capture) – Autonomous vehicles – Drones (LIDAR, point-cloud capture)
• Availability of computing resources is increasing rate of data capture
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Next Generation Wireless Design
Impacts of Higher Res Data
• 2016 – Majority of EDX customers using free or
cheap (low) resolution geodata
• 2017 – EDX introduced Cirrus: a Data as a Service for
high resolution geodata – Very successful among our customers
• And then they started using it…
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Next Generation Wireless Design
Impacts of Higher Res Data
• Data transfer time • Memory usage to manipulate the data • Propagation model parameters to
accommodate the higher resolution data • Propagation model computation time
• Most commonly used propagation models
were not designed around the resolution of geodata now available
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Next Generation Wireless Design
Impacts of Higher Res Data
• Predicted RSSI coverage holding all parameters the same between clutter resolutions
30m resolution clutter 1m resolution clutter
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Next Generation Wireless Design
Future of Data
• Incredibly high resolution point-cloud and LIDAR data
• Potential daily geodata refreshing • Real-time network monitoring • AI analysis • Cloud computing resources • Application of propagation models in
routine network management