A Wireless Communication Protocol for Smart Utility Networks
Wi-SUN, or Wireless Smart Utility Network, is a communication protocol designed for smart utility networks. It operates on the IEEE 802.15.4g standard, which is based on the physical layer of Zigbee and supports IPv6 communication. Wi-SUN enables the deployment of large-scale, outdoor wireless networks that can connect various smart devices, including electricity meters, streetlights, and traffic management systems.
Wi-SUN’s mesh networking topology allows for easy deployment of devices in remote and hard-to-reach locations. Devices in the network can communicate directly or indirectly through other devices in the network, allowing for multiple paths for data to travel. This makes the network highly resilient to interference and provides redundancy for critical infrastructure.
One of the key advantages of Wi-SUN is its ability to operate in the sub-GHz frequency band, which provides better range and penetration through obstacles compared to higher frequency bands. Wi-SUN also supports low-power operation, allowing devices to operate on batteries for several years without requiring replacement.
Another advantage of Wi-SUN is its security features. The protocol supports end-to-end encryption, ensuring that data transmitted over the network is protected from unauthorized access. Additionally, Wi-SUN uses digital certificates to authenticate devices, preventing unauthorized devices from joining the network.
Wi-SUN is widely used in smart utility networks, including advanced metering infrastructure (AMI), distribution automation, and street lighting. Its ability to support large-scale, outdoor networks with low-power, secure communication makes it a reliable and cost-effective solution for smart cities and utilities.
Key Technical Parameters:
- Frequency Band: Sub-GHz (900 MHz, 868 MHz, or 915 MHz)
- Range: Up to several kilometres
- Data Rate: Up to 600 kbps
- Power Consumption: Low-power operation for long battery life
- Security Features: End-to-end encryption and device authentication using digital certificates.