IOT LECTURE IOT LECTURE IOT LECTURE IOT LECTURE

IOT LECTURE IOT LECTURE

1. Internet of Things (IOT) By Prof. Pratik De Sarkar Department of EEE, IEM, Kolkata Lecture-2.1: IoT Protocols

2. Need of IoT Protocols Permit simultaneous communication between several devices. Since IoT is being used in vital sectors like healthcare, business, home security, etc., communication security must be guaranteed. Move data effectively. The IoT network can have new IoT devices added or uninstalled. So, protocols offer scalability.

3. There are several IoT protocols available; how can we choose only one?

4. Taking into account the environment for which these protocols are intended is one method to choose the appropriate protocol. Certain designs are intended for narrow ranges, while others are meant for broad ranges, high or low data rates, etc. Based on factors including cost, data rate, range, and power consumption, they differ.

5. Short Range Communication, Low Data Rate, Low Power Bluetooth frequency range of 2.4GHz covers a range of 10m to 100m data rate goes up to 1MBPS supports two network topologies – point-to-point and mesh used in speakers, earphones, smart watches, smart shoes Zigbee based on the IEEE802.15.4 standard frequency range of 2.4GHz range is up to 100 meters data rate is a maximum of 250KBPS high authentication and robustness supports star topology, mesh topology, and cluster tree topology used in health in industries, smart homes, etc 6LoWPAN 6LoWPAN refers to IPV6 Low Power PAN frequency ranging from 900 to 2400MHz data rate is 250KBPS supporting two network topologies - star and mesh

6. Short Range Communication, High Data Rate WirelessLAN - Wi-Fi data rate of 54MBPS and goes up to 600MBPS range of 50m in the local area providing private antennas goes to 30 km used in smart homes, smart cities, offices, etc

7. Long Range Communication, High Data Rate, Low power LoRaWAN Long Range Wide Area Network range is approximately 2.5km and can go up to 15km data rate is very low support many connected devices used in Smart City, Supply Chain Management, etc. LTE-M Long Term Evolution for Machines type of LPWAN – Low Power Wide Area Network used along with cellular networks to provide security frequency range of 1.4MHz-5MHz data rate can go up to 4MBPS

8. Long Range, Low Data Rate, Low Power Consumption Sigfox aims at connecting billions of IoT devices frequency range is 900MHZ range of 3km to 50km maximum data rate is very low, which is 1KBPS

9. Long Range, Low Data Rate, High Power Consumption Cellular 2G, 3G, 4G, and 5G frequency ranges – 900MHz, 1.8/1.9/2.1 GHz range is approximately 35km and goes up to 200km data rate is 35KBPS – 170KBPS consume high power NOT used for most IoT devices due to frequency and security issues used with IoT applications like connected cars.

10. END OF THE LECTURE 2