IoT Vigyan

Friday, October 5, 2018

LPWAN - Fundamentals of IoT (Part 1)

Posted by Madhukar at 5:49:00 PM 0 comments

A low-power wide-area network (LPWAN) or low-power wide-area (LPWA) network or low-power network (LPN) is a type of wireless telecommunication wide area network designed to allow long range communications at a low bit rate among things (connected objects), such as sensors operated on a battery.

LPWAN offers multi-year battery lifetime and is designed for sensors and applications that need to send small amounts of data over long distances a few times per hour from varying environments.

LoRa and LoraWAN belong to the category of non-cellular LPWAN wireless communication network protocols and players, operating in the license-free spectrum. Other technologies that operate in the license-free frequency bands include Sigfox, Ingenu and several more.

A complete list of Wireless IoT protocols may be found here.

While LoRA, LoRaWAN operates on open licensed-free spectrums, others may operate on licensed frequencies. Accordingly, LPWANs may often be classified as licensed and licensed-free LPWAN ecosystems.

LoRa and Sigfox fall under non-cellular IoT technologies. NB-IoT (NarrowBand IoT) falls under cellular IoT category, and transmits over cellular frequency .

http://www.rfwireless-world.com/Terminology/NB-IoT-vs-LoRa-vs-SigFox.html

Note: It is possible for LoRa(or any LP WAN device) to transmit over large distances with low power, since the laws of physics dictate, that in order to transmit over a large distance; you either need to increase the power, or reduce the bandwidth. Since LoRa embedded sensors transmit over large distances, but use low power (batteries), its bandwidth is greatly limited.

Source:Internet

About me

Posted by Madhukar at 8:25:00 PM 0 comments

I am a telecom professional and started this blog to share the stuff related to telecom and networking technologies.All materials are collected from Internet and from my friends.Hats off to all those guys.