Jan Willem Smeenk - fhi.nl
Transcript of Jan Willem Smeenk - fhi.nl
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The Internet of Things
Jan Willem Smeenk
Is NB-IoT the ultimate choice in LPWA Networking Technologies?
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Contents● Introduction to IoT● IoT Networking Technologies Landscape
○ PAN○ LAN○ WAN○ LPGAN
● Introduction to Sigfox, LoRa and NB-IoT● Positioning of each of these networks● Is NB-IoT the technology of choice?
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100 Billion things● Must be plug and play● Must be low cost● Can not be wired nor mains powered● May easily go missing, Geolocation is a must
○ GPS○ Network Triangulation
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WAN
WAN10+ meter100+ meter10000+ meter
PANLAN
The IoT landscape
Global
GAN
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PAN
PAN : Personal Area Network : Wearable Thing
● BLE● NFC / RFID● Very low power● Short range (0 - 30m line of sight)● Typically smartphone-dependent
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LAN: Local Area Network: Indoor Things
● home automation● often mains-powered
LAN
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WAN: Wide Area Network: Outdoor things● 2G/3G/4G Used to be called Machine to Machine (M2M)
○ Power hungry○ Long time to establish session○ Not really suitable for battery power
● Low Power○ Sigfox○ LoRa○ NB-IoT
LANWAN
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WAN: Evolution over time
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GAN: Satellite networks● Geostationary
○ VSAT○ Inmarsat
● Low Orbit ○ Iridium○ LPGAN: Magnitude Space LAN
GAN
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Sigfox● First LPWA Network● Unlicensed spectrum
○ 868 MHz Europe, regulated by ETSI○ maximum output power 14 dBm (25 mW)○ duty cycle 1%
● Ultra Narrow Band● 12 bytes data payload● 140 messages per day● Simplex by design, one way traffic
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LoRa● Same unlicensed spectrum as SigFox● Spread spectrum● 51 bytes payload● ~ 300 messages per day upload● ~ 30 messages per day download● Telco Networks (KPN, Proximus)● Community Networks (TTN)● Private Networks
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NB-IoT● Licensed spectrum
○ no duty cycle limits
● Extreme good coverage ○ > 12000 gateways in the Netherlands
● Deep indoor penetration● Using existing 4G hardware● link budget 20dB better than GSM● 500 byte message size
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NB-IoT ● Started in 2014 by a first 3GPP study● Initial Specifications
○ Low device cost ( <€5 per module)○ Extended coverage (better than GSM/GPRS)○ Large Capacity (> 40 devices per household, up to 100.000 devices per cell)○ Long battery life (> 10 years, 1 packet a day, 200 bytes)○ Moderate latency ( < 10 seconds)
● part of LTE (4G) standards○ NB-IoT uses the existing 4G network
M2M
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NB-IoT Coverage Amsterdam City
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KPN LoRa Coverage Amsterdam City
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Positioning Sigfox● Simplicity● Low cost modules● Low cost usage● International Roaming
○ Provided by private company (non-telco)
● Poor indoor penetration● Not for mission critical applications
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Positioning LoRa● We don’t see much future for LoRa provided by Telcos ● Community networks (The Things Network)● Private networks (e.g. agriculture)● No running data costs!● Geolocation better than 50m is possible
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Positioning NB-IoT● Rapid international roll-out● Supported by all major Telcos● Great worldwide coverage expected
soon● Deep indoor penetration (suitable for
both outdoor & indoor = more compatibility)
● Better suitable for mission critical applications (SLAs with Telcos)
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Is NB-IoT the ultimate choice in LPWA Networking Technologies?
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Message size (bytes) 12 51 500
Messages/day 140 300 > 300
Spectrum Unlicensed Unlicensed Licensed
Message Ack No ~ Yes
Module cost Low Medium Medium High
Private Network Option No Yes No
Geolocation < 50m No Yes On the roadmap
Power Consumption Very low Very low Low
Vendor Monopoly Yes No No
Comparison
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DemoPlease come and visit us in the Adelco Booth for a NB-IoT Demonstration