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Critical networking using mesh Wi-SUN technology

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Presented by Dr Simon Dunkley in Cambridge Wireless Radio Technology SIG (23 Jan 2017) - http://www.cambridgewireless.co.uk/crmapp/EventResource.aspx?objid=61129

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Critical networking using mesh Wi-SUN technology

  1. 1. © 2017 Silver Spring Networks. All rights reserved.1 Critical networking using mesh Wi-SUN technology Dr Simon Dunkley
  2. 2. © 2017 Silver Spring Networks. All rights reserved.2 • Critical infrastructure requirements • Wi-SUN Mesh architecture • Wi-SUN technology • Case studies Content
  3. 3. © 2017 Silver Spring Networks. All rights reserved.3 Critical infrastructure requirements
  4. 4. © 2017 Silver Spring Networks. All rights reserved.4 Critical Infrastructure Has Critical Requirements Reliable Secure Extensible High Performance Scalable Open Standards Cost Effective Ubiquity • Packet confirmation • Authentication • Broad coverage • Heterogeneous terrain • Availability of “Plan B” • Authentication • Privacy • Integrity of packet • Capex/opex flexbility • Competitive £ per-bit • SLA commitment • Peer-to-peer • Maturity of standards • Range, capacity, coverage • Flexible delivery model • Proven scale – technical and solution capabilities • API support
  5. 5. © 2017 Silver Spring Networks. All rights reserved.5 Wi-SUN mesh architecture
  6. 6. © 2017 Silver Spring Networks. All rights reserved.6 What is a mesh? (1)
  7. 7. © 2017 Silver Spring Networks. All rights reserved.7 Charts show 5,000 nodes forming two optimal networks within 45 minutes Topology: urban and suburban Florida, USA What is a mesh? (2)
  8. 8. © 2017 Silver Spring Networks. All rights reserved.8 Smart Grid Example #1: Smart Metering -- Scale Rule of thumb: 5000 meters per access point. Visibility to many, many neighbors means diverse ingress/egress. Resiliency: IPv6 Multi-Homing across multiple access points. Smart Meter Communications Can Create The Foundation For Smart Grid
  9. 9. © 2017 Silver Spring Networks. All rights reserved.9 9 Rule of thumb: 5000 meters per access point. Visibility to many, many neighbors means diverse ingress/egress. Resiliency: IPv6 Multi-Homing across multiple access points. Smart Meter Communications Can Create The Foundation For Smart Grid Smart Grid Example #1: Smart Metering -- Scale
  10. 10. © 2017 Silver Spring Networks. All rights reserved.10 Proven Real World Performance 10 1480m 930m 1900m575m Wi-SUN FAN characteristics: • Massive scale, high data rates • Sub-second end to end latency • Long range, excellent penetration • Standards-based security • Multiple-vendor support • Network management & provisioning
  11. 11. © 2017 Silver Spring Networks. All rights reserved.11 Where Mesh Fits High reliability Ubiquitous coverage, unlimited range Usable latency Good speed & capacity Scalability Affordability Security Peer-to-peer connectivity Things that move a lot Super high bandwidth applications (e.g. HD video streaming) Sparse, isolated end points Low value and near-zero cost Broadcasting as a primary mode* Great when you need: Less well suited for: Mesh is best suited for connecting critical infrastructure at scale * Short-term limitation
  12. 12. © 2017 Silver Spring Networks. All rights reserved.12 1. Based on publicly available data and known awards 2. Europe, for historical reasons, have high PLC deployments, all of which have performed poorly for wide-area coverage 3. Includes fiber, WiMax, & etc. Mesh Architecture Proven as Dominant Networking for Smart Meters Number of Electric AMI Awarded Endpoints Through Q1 2015, Millions1 3 North America Mesh PLC Cellular Tower Other ROW, excluding Europe2 Mesh PLC Cellular Tower Other3
  13. 13. © 2017 Silver Spring Networks. All rights reserved.13 Spectrum availability in Europe 865 868 870 876 915 921 4channels 28channels 1channel 8channels
  14. 14. © 2017 Silver Spring Networks. All rights reserved.14 865 868 870 876 915 921 4channels 28channels 1channel 8channels Harmonised spectrum National release Spectrum availability in Europe
  15. 15. © 2017 Silver Spring Networks. All rights reserved.15 Wi-SUN technology
  16. 16. © 2017 Silver Spring Networks. All rights reserved.16 Wi-SUN: PHY and MAC options (1)  PHY (within 200kHz channel) - DSSS – 6.25kbps - GMSK – 50, 100, 150, 200kbps - OFDM – 50, 100, 150, 200, 300kbps  MAC - Frequency agile (not spread spectrum)
  17. 17. © 2017 Silver Spring Networks. All rights reserved.17 Wi-SUN: PHY and MAC options (2) Time Frequency 400ms max MAC 1 MAC 2
  18. 18. © 2017 Silver Spring Networks. All rights reserved.18 Wi-SUN: PHY and MAC options (3)
  19. 19. © 2017 Silver Spring Networks. All rights reserved.19 Wi-SUN features • Spectrum efficiency • RTS + CTS + Data ACK – Avoids long wasted transmissions • Sufficiently high rates allows meaningful data to be transmitted sub 1s • APC – Minimises radius of interference – Able to achieve longer ranges when necessary – Link history is persisted • ‘Gear shifting’ minimises on-air transmission time • Channel sensing and deferral for polite coexistence (Listen Before Talk) • Edge computing • Security
  20. 20. © 2017 Silver Spring Networks. All rights reserved.20 • Proven, universal security algorithms and protocols • Authentication, authorization, encryption • Hardware protection and acceleration • Role-based controls and policies WAN Backhaul Multi-level, End-to-End Security Silver Spring network IPsec Security Layers • 20+ year protection • Reduce “wholesale attacks” to “retail attacks” • Mitigate physical threats • Protect against insider threats Comms Module Cryptographic Identity 20 © 2012 Silver Spring Networks. All rights reserved. Application Layer Link Layer Firmware Upgrades Back Office Only Provider of True End-to-end Security 20 © 2012 Silver Spring Networks. All rights reserved.
  21. 21. © 2017 Silver Spring Networks. All rights reserved.21 Case studies
  22. 22. © 2017 Silver Spring Networks. All rights reserved.22 Value Added Insights Leveraging AMI Data • Restoration assessment - Assess network performance through outage reports - Analysis, report and briefing on network and process optimization • Voltage assessment - Assess network performance and adherence to acceptable voltage levels - Identify potential equipment failure - Monitor equipment and configuration errors - Analysis, report and briefing on network and process optimization
  23. 23. © 2017 Silver Spring Networks. All rights reserved.23 • Increase energy efficiency and customer satisfaction - Automated system with no need for customer behavior change • Achieve energy efficiency cost savings while ensuring regulatory compliance - Fast, reliable meter information improves accuracy of voltage optimization • Proven reduction in energy spend - Reliably reduce voltage levels within regulated levels Towards the Smart Grid
  24. 24. © 2017 Silver Spring Networks. All rights reserved.24 Case Study: Enabling renewable energy sources
  25. 25. © 2017 Silver Spring Networks. All rights reserved.25 Smart Grid to Smart City….. Time 10s of Millions Millions Smart Grid Networks Smart City Infrastructure Networks Devices Open, standards-based, secure, reliable network platform
  26. 26. © 2017 Silver Spring Networks. All rights reserved.26 Case Study: Smart Lighting and Transportation • Smart city deployment - NaaS across initial 20K lights within City of Copenhagen - Smart street lighting, transportation and environmental sensors
  27. 27. © 2017 Silver Spring Networks. All rights reserved.27 Case Study: Glasgow City Council • Smart streetlight control - Lights rolled out in three areas of the city centre - Combined with sensors to gather data and modify dimming operation: • Pedestrian footfall • Vehicular traffic and • Noise measurements • Environmental sensors • Results - Light control linked into the city’s new urban control centre - Sensor data has been made available via the city’s data portal - Streetlight levels modified by street level activity
  28. 28. © 2017 Silver Spring Networks. All rights reserved.28 Case Study: Bristol Is Open • Smart City services over lighting infrastructure - Mesh network rolled out using streetlight infrastructure - Services offered to City Council and trials to third parties - Control of 300 lights in prime areas • Results - ‘Traditional’ control of lights rolled out with ease - Excellent network coverage across city and into buildings
  29. 29. © 2017 Silver Spring Networks. All rights reserved.29 Thanks! sdunkley@silverspringnet.com

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