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Narrow Band Internet of things(NB IoT)
Narrowband IoT (NB-IoT) is a Low Power Wide Area Network (LPWAN) radio technology standard developed by 3GPP to enable a wide range of cellular devices and services.
NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
NB-IoT is a specification developed by 3rd Generation Partnership Project (3GPP).
Operations of NB IOT
In Band operation
Guard operation
Stand-alone operation
Main Features of NB IoT
Power Saving
Low cost modules
Extended coverage
Low Latency
Low complexity
Massive number of devices
Advantages & Disadvantages
Advantages
It uses mobile wireless network it offers better scalability, quality of service and security.
It offers long battery life due to low power consumption or current consumption.
It offers extended coverage compare to GSM/GPRS systems.
It transmits data at low bit rates over long distances. The range is better than GSM and LTE.
NB-IoT modules are expected to be available at moderate costs.
They offer better penetration of structures and better data rates compare to unlicensed band based standards.
Disadvantages
It offers lower data rate (about 250Kbps download and 20Kbps upload) compare to LTE cat-M1. The bandwidth is about 200 KHz. Hence it is ideal to use NB-IoT for stationary devices.
It does not support VoLTE (Voice Over LTE) for speech transmission. Hence voice transmission is not supported.
They offer better penetration of structures and better data rates compare to unlicensed band based standards.
Applications of NB IoT
Smart Parking Solutions
Smart Cities
Smart Environment
Smart Metering
Smart Health Monitoring
Smart Tracking
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