Internet of things (IoT) |
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General concepts |
Communication protocols |
A low-power, wide-area network (LPWAN or LPWA network) is a type of wireless telecommunication wide area network designed to allow long-range communication at a low bit rate between IoT devices, such as sensors operated on a battery.
Low power, low bit rate, and intended use distinguish this type of network from a wireless WAN that is designed to connect users or businesses, and carry more data, using more power. The LPWAN data rate ranges from 0.3 kbit/s to 50 kbit/s per channel.
A LPWAN may be used to create a private wireless sensor network, but may also be a service or infrastructure offered by a third party, allowing the owners of sensors to deploy them in the field without investing in gateway technology.
Attributes
- Range: The operating range of LPWAN technology varies from a few kilometers in urban areas to over 10 km in rural settings. It can also enable effective data communication in previously infeasible indoor and underground locations.
- Power: LPWAN manufacturers claim years to decades of usable life from built-in batteries, but real-world application tests have not confirmed this.
Platforms and technologies
Some competing standards and vendors for LPWAN space include:
- DASH7, a low latency, bi-directional firmware standard that operates over multiple LPWAN radio technologies including LoRa.
- Wize is an open and royalty-free standard for LPWAN derived from the European Standard Wireless Mbus.
- Chirp spread spectrum (CSS) based devices.
- Sigfox, UNB-based technology and French company.
- LoRa is a proprietary, chirp spread spectrum radio modulation technology for LPWAN used by LoRaWAN, Haystack Technologies, and Symphony Link.
- MIoTy, implementing Telegram Splitting technology.
- Weightless is an open standard, narrowband technology for LPWAN used by Ubiik
- ELTRES, a LPWA technology developed by Sony, with transmission ranges of over 100 km while moving at speeds of 100 km/h.
- IEEE 802.11ah, also known as Wi-Fi HaLow, is a low-power, wide-area implementation of 802.11 wireless networking standard using sub-gig frequencies.
Ultra-narrow band
Ultra Narrowband (UNB), modulation technology used for LPWAN by various companies including:
- Sigfox, French UNB-based technology company.
- Weightless, a set of communication standards from the Weightless SIG.
- NB-Fi Protocol, developed by WAVIoT company.
Others
- DASH7 Mode 2 development framework for low power wireless networks, by Haystack Technologies. Runs over many wireless radio standards like LoRa, LTE, 802.15.4g, and others.
- LTE Advanced for Machine Type Communications (LTE-M), an evolution of LTE communications for connected things by 3GPP.
- MySensors, DIY Home Automation framework supporting different radios including LoRa.
- NarrowBand IoT (NB-IoT), standardization effort by 3GPP for a LPWAN used in cellular networks.
- Random phase multiple access (RPMA) from Ingenu, formerly known as On-Ramp Wireless, is based on a variation of CDMA technology for cellular phones, but uses unlicensed 2.4 GHz spectrum. RPMA is used in GE's AMI metering.
- Byron, a direct-sequence spread spectrum (DSSS) technology from Taggle Systems in Australia.
- Wi-SUN, based on IEEE 802.15.4g.
See also
- Internet of things
- Wide area networks
- Static Context Header Compression (SCHC)
- QRP operation
- Slowfeld
- Through-the-earth mine communications
- Short range device
- IEEE 802.15.4 (Low-power personal-area network)
- IEEE 802.16 (WiMAX)
References
- Singh, Ritesh Kumar; Puluckul, Priyesh Pappinisseri; Berkvens, Rafael; Weyn, Maarten (2020-08-25). "Energy Consumption Analysis of LPWAN Technologies and Lifetime Estimation for IoT Application". Sensors (Basel, Switzerland). 20 (17): 4794. Bibcode:2020Senso..20.4794S. doi:10.3390/s20174794. ISSN 1424-8220. PMC 7506725. PMID 32854350.
- Sanchez-Iborra, Ramon; Cano, Maria-Dolores (2016). "State of the Art in LP-WAN Solutions for Industrial IoT Services". Sensors. 16 (5): 708. Bibcode:2016Senso..16..708S. doi:10.3390/s16050708. PMC 4883399. PMID 27196909.
- Sheldon, John (2019-06-25). "French IoT Satellite Company Kinéis Announces Strategic Partnerships With Objenious And Wize Alliance". SpaceWatch.Global. Retrieved 2019-08-02.
- "SIGFOX Technology". Retrieved 2016-02-01.
- "What is LoRaWAN?". Link Labs. Retrieved 2023-01-09.
- Jesus Sanchez-Gomez; Ramon Sanchez-Iborra (2017). "Experimental comparison of LoRa and FSK as IoT-communication-enabling modulations". IEEE Global Communications Conference (Globecom'17). doi:10.1109/GLOCOM.2017.8254530. S2CID 44010035.
- "ELTRES Technology". Sony Semiconductor Solutions Group. Retrieved 2022-08-10.
- IEEE Standard for Information technology--Telecommunications and information exchange between systems - Local and metropolitan area networks--Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 2: Sub 1 GHZ License Exempt Operation. doi:10.1109/IEEESTD.2017.7920364. ISBN 978-1-5044-3911-4.
- "SIGFOX Technology". Retrieved 2016-02-01.
- "Weightless-N – Weightless". www.weightless.org. Retrieved 2016-02-01.
- "What is NB-Fi Protocol – WAVIoT LPWAN". WAVIoT LPWAN. Retrieved 2018-05-18.
- "Framework Details". haystacktechnologies.com. Retrieved 2016-02-01.
- Flynn, Kevin. "Evolution of LTE in Release 13". www.3gpp.org. Retrieved 2016-02-01.
- "LTE-M, NB-LTE-M, & NB-IOT: Three 3GPP IoT Technologies To Get Familiar With". Link Labs. Retrieved 2016-02-01.
- Freeman, Mike (2015-09-08). "On-Ramp Wireless becomes Ingenu, launches nationwide IoT network". The San Diego Union-Tribune. Retrieved 2015-09-14.
- "Ingenu Launches the US's Newest IoT Network". Light Reading. Retrieved 2015-09-14.
- St. John, Jeff (2013-02-01). "GE Dives Into AMI Fray With On-Ramp Wireless: Greentech Media". Retrieved 2015-09-14.
- Guiterrez, Peter (October 13, 2016). "How Taggle is spreading LPWAN across Australia". IoT HUB. Retrieved September 23, 2021.
- "Wi-SUN Alliance". Wi-SUN Alliance. 2018-08-15. Retrieved 2019-12-16.