Learn in the textbookIoT Networks
DefinitionLPWA (Low Power Wide Area) is an umbrella term for IoT wireless methods that combine low power with wide coverage, at the cost of low data rates.
ExplanationWhen a device only sends small readings such as temperatures or meter values, a low data rate rarely gets in the way. A battery alone keeps it running for years and its signal reaches several to tens of kilometers, so it suits collecting data from devices scattered over a large region.
AnalogyIt is like a mail carrier who cannot haul big parcels but keeps delivering letters to distant villages on almost no fuel.
Memory hookThe name holds only Low Power and Wide Area; no word in it says anything about speed.