Protocols used by IOT

Top Communication Protocols used By IoT

The Internet of Things or IoT is based on the networking of things. It can be defined as the proposed development of the internet that everyday objects have network connectivity that allows them to send as well as receive data.

One of the most important things is the connectivity among objects.

According to research by companies like Gartner, it has been predicted that IoT will grow to 26 billion units in 2020. How will all the devices be connected, and what would communication be like? How to evolve wireless communication protocols? There are a number of wireless communication protocols. Let’s take a look at 6 IoT communication standards:

  1. Satellite
  2. WiFi
  3. Radio Frequency
  4. RFID
  5. Bluetooth
  6. NFC

In the below paragraphs, you will understand the importance of each of the Internet of Things communication techniques:


Satellite communication allows mobile phone communication from a phone to the next antenna of about 10 to 15 miles. They are known as GSM, GPRS, CDMA, 2G / GSM, 3G, 4G / LTE, EDGE, and more based on connectivity speed.

In IoT language, it is also known as M2M (Machine-to-Machine) because it allows devices like a cell phone to send as well as receive data via the cell network. Satellite communication offers top benefits, including stable connection and universal compatibility. Satellite is useful for communication that can utilize low data volume.


Wi-Fi is a wireless local area network, commonly known as WLAN. It uses the IEEE 802.11 standard via 2.4GhZ UHF and 5GhZ ISM frequencies. It offers Internet access to devices that are within the range. Affordable, universal smartphone compatibility and well protected and controlled are some of the pros of WiFi.

Radio Frequency (RF)

It is the easiest form of communications between devices. There are a number of protocols like ZigBee or ZWave that use a low-power RF radio embedded or retrofitted into e-devices and systems.

The range of Z-Wave is 100 ft. The radio frequency band used is particular to countries. For instance,

  • Europe includes an 868.42 MHz SRD Band
  • United States has a 900 MHz ISM or 908.42 MHz band
  • Israel has a 916 MHz
  • Hong Kong has a 919.82 MHz
  • Australia/New Zealand has 921.42 MHz
  • India has an 865.2 Mhz


RFID stands for Radio-frequency identification. It is the wireless use of electromagnetic fields in order to identify objects. In general, you would install an active reader, or reading tags that include a stored information authentication replies. Short-range RFID is around 10cm. The advantage of Radio Frequency Identification does not require power, established and widely used technology.


It is a wireless technology standard to exchange data over short distances. If you look at the frequencies, it is the same as WiFi that these technologies seem very similar. However, they have different uses. Bluetooth feature is available in many products, including telephones, tablets, media players, robotics systems, and more. This technology is highly useful when transferring data between two or more devices that are near each other.


NFC stands for Near-field communication. Uses electromagnetic induction between two loop antennas that are located within each other near field. It can operate within the globally available as well as unlicensed radio frequency ISM band of 13.56 MHz on ISO/IEC 18000-3 air interface. Rates range from 106 kbit/s to 424 kbit/s. It involves an initiator as well as a target. One of its most common benefits is it offers a low-speed connection with extremely simple setup.

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