lorawan: long range and low power communication for
TRANSCRIPT
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LoRaWAN:LongRangeandLowPowerCommunicationforEnablingMassiveIoT
AlperYeginDirector ofStandardsandAdvancedTechnology Development,ActilityVice-Chair,LoRa Alliance
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SensorsNeedAutonomy
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à CutthecordàWireless-connectedà Battery-operated
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LowPower,But…
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Lowpower/Lowdatarate
Longrange
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LongRange,But…
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Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
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…
5
Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
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NeedLowPower&LongRange
6
Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
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LowPower&LongRange
7
Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
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LowPower&LongRange
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Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
…
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LowPower&LongRange
9
Lowpower/Lowdatarate
Longrange
2.5/3/4/5G
…
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Trackers
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• Trackingscooters@India
• Trackingbelongings@France
• Panicbutton@India
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SmartCities
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• Firealarm• Acidityandoxygenlevelsin
rivers• Parkingspaceavailability• Manholecoversecurity
@Shanghai
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Metering
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• Watermetering@France
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ConnectedStreetCabinets
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• Unauthorizedaccess• Powerloss• Over-heating/fire
@France,Switzerland,Belgium,Netherlands,….
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Features
14
NetworkServer
OSS/Supervision
Apps
Gateway
Coverage Lifetime Cost Usage
2- 10+kmDeep indoorStartopologyBi-directional
10+year batteryAdaptive Data Rate
(ADR)Traffic profiles
License-free spectrumOpenstandards/srcGround-up designLow-cost infra
Public/private networksGeoloc (no GPS)300bps-50Kbps
API
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Features
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Characteristics LoRa RF
Modulation LoRa (Chirp SpreadSpectrum)
Frequency Sub-GHzISM(868/915Mhz)
Channelbandwidth 125-500KHz
Datarate 300bps– 50kbps
Linkbudget 155 – 170dB
Payload size 11– 242bytes(variable)
Batteryconsumption 5mARX/18mA(10dBm)TX
Communicationtype Bi-directional unicast,networkmulticast
Interference immunity Spread-spectrum w/FEC
Scalability Self-scaling networkcapability through AdaptiveDataRate
Mobility Handoversupport,geo-location
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NetworkStack
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LoRa
LoRaWAN
Physicallayer
Linklayer
App
UDP/IP
SCHC
DLMSappstack
WirelessM-Busapp
stack
Modbusappstack
Zigbee appstack
Proprietary appstacks …Applayer
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End-deviceClasses
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Classname Intended usage
A Battery powered sensors,oractuators with nolatency constraint
B Battery powered actuatorsSlotted communicationsynchronized with thenetworkbeacon
C Mainspowered actuatorsListen continuously
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AdaptiveDataRates
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14km 10km 8km 6km 4km
290bps 530 970Avg bitrate ~1300bps
2D simulation (flat environment)
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Geolocation
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Location Solver
• Physicalbroadcast+TDoA (TimeDifferenceonArrival-- nanosec)
• Noextrahardwareorprocessingcostondevice
à 20-100maccuracy
Network Server
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PassiveRoaming
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HomeNetwork
Visited Networks
Application Server
• Collaborativereception• Enableshigherdatarates,lowerpower
(ADR!)• Lessinterference• Morenetworkcapacity• Longerbatterylife
• BetterTDOA/RSSIgeoloc accuracy
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Security
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LoRaWAN L2 securityBackend security(IPsec, TLS, firewall, etc.)
LoRaWANEncryption
L2Integrity
protection
Backendintegrity
protection+ encryption
Backend integrity
protection + encryption
Mutualend-pointauthenticationDataoriginauthentication
IntegrityprotectionReplayprotectionDataencryption
…usingAES-128 keysandalgorithms
FUOTA(FirmwareUpdateOver-the-Air)
Hardware-levelsecurity(SecureElements/
HardwareSecurityModules)+ +
Device
ApplicationServer
NetworkServer
Gateway
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Gateways
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Macro-cell Pico-cell Dev-kit
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Range
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SkyistheLimit
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GlobalDeployments
25
104!
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LoRaWAN CoverageExamples
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LoRa Alliance
27
500+ LoRa Alliance™ Members as of April 2019Sponsor & Contributor Level Members Shown Here
LANGYANG Technologies
EXO
CARNEGIE TECHNOLOGIES
2015 2019
+ 385 Adopter Members
NETZIKON
Amazon,Google,Cisco,Intel,Orange,ZTE,Comcast,ARM,SKT,Sagemcom,NEC,NTT,Softbank,Alibaba,Tencent,Schneider,Tata,…
MarketingCommittee
TechnicalCommittee
CertificationCommittee
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Devices
Network& JoinServers
LPWANBackbone
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LoRaWAN vsSigFox
29
Sub-Ghz ISM Sub-Ghz ISMPublicnetworks Public+privatenetworksClosedecosystem OpenecosystemSinglebusinessmodel FlexiblesbusinessmodelsConstrained(*)traffic Lessconstrainedtraffic
DynamicpowermanagementCollaborativenetworking
Earlystart
(*)12byteframe,140UL/4DLperday,100bps
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LoRaWAN vsNB-IoT
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Licensedbands ISM(unlicensedband)Publicnetworks Public+privatenetworksEmergingdeployments Acceleratingdeployments
Low-power(1/5th!ofNB-IoT)Low-costinfraCollaborativenetworking
Real-timeHigherdata-rate(250Kbps)Marketingpower(GSMA)
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Fertile R&DGround
31
Opensourcecode
Freedeveloperstools
Low-costhardware
Freshandchallengingproblemspace
• Smallnumberofpackets(fewpackets/day)• Extendedbatterylife(5-10years)• Smallpacketsize(10sofbytes)• Longrange(10+km)• Secure• ISMband(shareduse)• Asymmetricnetworkcapacity• Highscalability:Millionsuplink/day/BS• Widerangeofusecasesandtrafficpatterns
Openstandards
Unlicenseddeployment