Downloaded 140 times
Uploaded byStavros Kalapothas
LoRaWAN for IoT
The document presents a technical deep dive into LPWAN (Low Power Wide Area Network) wireless technologies, emphasizing the relevance of Lora in IoT applications. It covers various existing and emerging wireless technologies, their specifications, and market growth potential, alongside a detailed exploration of Lora's functionality and architecture. Additionally, the document encourages audience engagement and questions during the discussion.
More Related Content
![Computer Networks 01[1 using all terms].pptx](https://cdn.slidesharecdn.com/ss_thumbnails/computernetworks011-251214040533-327dd9f8-thumbnail.jpg?width=640&height=640&fit=bounds)
LoRaWAN for IoT
- 1. LoRa 4 IoTStavrosKalapothas, MSc Exploring LPWAN Wireless Technologies
- 2. • Stavros Kalapothas •Senior DevOps Engineer at GR Gov • MSc in Pervasive Computing • Research interests: • WSN • SDR • IoT • OSH & OSS advocate LoRa 4 IoT About me stavros@ubinet. gr @stavros_it
- 3. • Slides withmany figures so, be prepared • Technical deep dive • No prior knowledge with wireless protocols is required • Feel free to interrupt and ask questions LoRa 4 IoT Before we start http://push-conference.com
- 4. • LPWAN -Where it fits • LPWAN - Emerging technologies • LoRa breakdown • LoRa based IoT applications • Demo showcase LoRa 4 IoT Agenda
- 5. • Low PowerWide Area Network • The rise of the Internet of Things • IoT is about 106s or 109s connected devices • connected devices providing data to transform societies/economies • connections always on increase • expected market growth and high revenue • broad coverage LoRa 4 IoT LPWAN – Where it fits 1/3
- 6. • Wireless Requirementsfor IoT • Low Power • Long Range • Low Bandwidth • Existing wireless technologies • NFC / RFID • BT / BLE • Zigbee • WiFi • Cellular LoRa 4 IoT LPWAN – Where it fits 2/3 http://www.theiet.org
- 7. LoRa 4 IoT LPWAN– Where it fits 3/3
- 8. LoRa 4 IoT LPWAN– Emerging technologies Get ready for LPWAN
- 9. LoRa 4 IoT LPWAN– Emerging technologies http://www.itwissen.info/lex-images/lpwan-konzepte-fuer-das-internet-of-things-iot.png
- 10. • IoT enablers •Sigfox • LoRa • Weightless-N • LTE-M • NB-IoT • EC-GSM-IoT • Ingenu • DASH7 LoRa 4 IoT LPWAN – Emerging technologies http://www.theiet.org
- 11. • French startupfounded in 2009 • Worldwide network deployment • 120 bytes per message • 140 transmissions per day • 100 bps • 100 Hz Ultra Narrow Band (UNB) signal • Proprietary Protocol • ISM radio band 868 in EU and 902 in US • TX mode: Fire and Forget, No ACKs • Uplink and Downlink support • Fair access policy: max TX 30s/hour • Network Operator Business Model LoRa 4 IoT LPWAN – https://i.ytimg.com/vi/7zc6bH-9qZk/maxresdefault.jpg
- 12. LoRa 4 IoT LPWAN– https://i.ytimg.com/vi/4beoZapuBXw/maxresdefault.jpg • Founded in 2008 (former On-RAMP wireless) • US coverage expanding globally • RPMA based • 100 bytes per day • 624 kbps • Message Acknowledgement • ISM radio band 2.4GHz • Mainly for industrial M2M • Bidirectional support • Network Operator Business Model
- 13. LoRa 4 IoT LPWAN– https://www.slideshare.net/DuncanPurves • Weightless Specialty Interest Group (SIG) • Open Standard • GMSK and DBPSK based • Weightless N/P/W • Unidirectional (N) – Bidirectional (P) • 100 Hz (N) – 12.5 KHz (P) • 100 bps (N) – 200kbps (P) • 100% Message Acknowledgement • ~2 Km • ISM bands N/P – TVWS (W) • Partners
- 14. LoRa 4 IoT LPWAN– https://www.sierrawireless.com/resources/white-paper/lpwa-fact-or-fiction
- 15. LoRa 4 IoT LPWAN– • WiFi alliance, IEEE 802.11 working group • Open Standard • 10 times down-clock 802.11ac PHY • 1, 2, 4, 8 and 16 MHz • OFDM and QPSK/QAM subcarriers • 1 Km • ISM radio band 868 in EU and 902 in US W. Sun, M. Choi, S. Choi, IEEE 802.11ah: a long range 802.11 WLAN at Sub 1 GHz, J. ICT Standard. 1 (2013) 83–107.
- 16. LoRa 4 IoT LPWAN– • Semtech, LoRa alliance • Proprietary • Chirp Spread Spectrum • 8 x 125 KHz • ISM radio band 433/868/915 • 300 bps – 5.5 Kbps • Security • Partners and Open Development http://www.semtech.com/wireless-rf/internet-of-things/img/what-network_diagram.png
- 17. LoRa 4 IoT LoRa- PHY • Compressed High Intensity Radar Pulse • Constant amplitude • Signals cross the available bandwidth in a linear or non-linear way • up-chirp frequency from low to high • down-chirp frequency from high to low • Fading and Doppler shift resistant • Good sensitivity • Robustness http://www.sghoslya.com
- 18. LoRa 4 IoT LoRa- PHY • Spread Spectrum Modulation • 6 Spreading Factors, SF7 to SF12 • Higher SF Lower Data Rate • Lower SF Higher Data Rate http://www.sghoslya.com
- 19. LoRa 4 IoT LoRa- PHY SNR for Various Modulations https://www.semtech.com/images/datasheet/LoraDesignGuide_STD.pdf SF vs Air-Time vs Sensitivity
- 20. LoRa 4 IoT LoRa- PHY • Symbol period: • Code Rate: 1-4 • Bit rate: http://www.sghoslya.com
- 21. LoRa 4 IoT LoRaWAN- Stack • Class A: on demand TX windows + short RX windows • Class B: Class A + scheduled receive windows (beacon) • Class C: Class A + continuous receive window https://www.lora-alliance.org/technology
- 22. LoRa 4 IoT LoRaWAN– Hardware Devices Node http://www.microwavejournal.com Gateway http://currencyobserver.com/wp-content/uploads/2017/10/LoRa-G Antenna
- 23. LoRa 4 IoT LoRaWAN- Applications http://www.sghoslya.com https://www.stream-technologies.com/img/kerlink-smart-img.jpg
- 24. LoRa 4 IoT LoRa- Demo
- 25.