Details

Autor(en) / Beteiligte

• Vejlgaard, Benny
• Lauridsen, Mads
• Huan Nguyen
• Kovacs, Istvan Z.
• Mogensen, Preben
• Sorensen, Mads

Titel

Coverage and Capacity Analysis of Sigfox, LoRa, GPRS, and NB-IoT

Ist Teil von

• 2017 IEEE 85th Vehicular Technology Conference (VTC Spring), 2017, p.1-5

Ort / Verlag

IEEE

Erscheinungsjahr

2017

Link zum Volltext

Quelle

IEEE Xplore

Beschreibungen/Notizen

• In this paper the coverage and capacity of SigFox, LoRa, GPRS, and NB-IoT is compared using a real site deployment covering 8000 km2 in Northern Denmark. Using the existing Telenor cellular site grid it is shown that the four technologies have more than 99 % outdoor coverage, while GPRS is challenged for indoor coverage. Furthermore, the study analyzes the capacity of the four technologies assuming a traffic growth from 1 to 10 IoT device per user. The conclusion is that the 95 %-tile uplink failure rate for outdoor users is below 5 % for all technologies. For indoor users only NB-IoT provides uplink and downlink connectivity with less than 5 % failure rate, while SigFox is able to provide an unacknowledged uplink data service with about 12 % failure rate. Both GPRS and LoRa struggle to provide sufficient indoor coverage and capacity.