Wireless Protocols for IoT : IEEE
802.15.4 Wireless Personal Area
Networks
, Overview
1. Internet of Things and Wireless Protocols for IoT
2. IEEE 802.15.4: Topologies, MAC, PHY
3. IEEE 802.15.4e Enhancements
,Wireless Personal Area Networks (WPANs)
Wide Area Network (WAN)
802.16e 802.20 802.21 802.22 2G, 2.5G, 3G, 4G,
Nomadic Mobile Handoff WRAN 5G Cellular
Metropolitan Area Network (MAN)
802.16/WiMAX Fixed Wireless MAN, LTE/4G/5G
Local Area Network (LAN)
802.11 Wi-Fi
Personal Area Network (PAN)
802.15.1 802.15.4 802.15.6
Bluetooth ZigBee Body Area Networks
, WPAN: Design Challenges
Battery powered: Maximize battery life.
A few hours to a few years on a coin cell.
Dynamic topologies: Short-duration connections, and then the
device is turned off or goes to sleep
No infrastructure
Avoid Interference due to larger powered LAN devices
Simple and Extreme Interoperability: Billions of devices.
More variety than LAN or MAN
Low-cost: A few Rupees
802.15.4 Wireless Personal Area
Networks
, Overview
1. Internet of Things and Wireless Protocols for IoT
2. IEEE 802.15.4: Topologies, MAC, PHY
3. IEEE 802.15.4e Enhancements
,Wireless Personal Area Networks (WPANs)
Wide Area Network (WAN)
802.16e 802.20 802.21 802.22 2G, 2.5G, 3G, 4G,
Nomadic Mobile Handoff WRAN 5G Cellular
Metropolitan Area Network (MAN)
802.16/WiMAX Fixed Wireless MAN, LTE/4G/5G
Local Area Network (LAN)
802.11 Wi-Fi
Personal Area Network (PAN)
802.15.1 802.15.4 802.15.6
Bluetooth ZigBee Body Area Networks
, WPAN: Design Challenges
Battery powered: Maximize battery life.
A few hours to a few years on a coin cell.
Dynamic topologies: Short-duration connections, and then the
device is turned off or goes to sleep
No infrastructure
Avoid Interference due to larger powered LAN devices
Simple and Extreme Interoperability: Billions of devices.
More variety than LAN or MAN
Low-cost: A few Rupees
