L3: Internet of Things for Smart Cities

Question 1

What is the Internet of Things (IoT) and what are the three layers in IoT?

Answer 1

▶ Application layer: smart cities, etc.
▶ Network layer: wired or wireless network
▶ Perception layer: Sensor, device, camera, RFID, etc

Question 2

• What are the features of IoT smart sensors?

Answer 2

the capability to conduct
local processing or analysis.
- low cost
- physcially small
- self identification
low power
- wireless
- robust, low maintenance
- self diagnostic
- self calibrating
- data pre-processing

Question 3

What are the major protocols for IoT?

Answer 3

• Bluetooth
• Zigbee
• Z-wave
• Wifi
• Cellular
• NFC
  LoRaWAN
• NB -IOT

Question 4

What are the challenges for IoT?

Answer 4

▶ Battery lifetime and power consumption
▶ Bandwidth/Data Rate/Throughput/Latency
▶ Range to deliver sensing data
▶ Cost of sensors and devices
▶ Sensor and device maintenance

Question 5

What are the challenges for IoT in smart cities?

Answer 5

▶ Connecting so many devices will be one of the biggest challenges of the future of IoT.
▶ Security is paramount in Internet of Things connectivity.
▶ Presence detection offers the ability to monitor all IoT devices and fix any problems
that may arise with the network.
▶ Achieve minimal battery drain and low power consumption for communication.
▶ Bandwidth consumption is another challenge for IoT connectivity