Zigbee Compared With Bluetooth Low Energy
Within the communication and electronics industry there have been a lot of speculative predictions and hype that Bluetooth Low Energy (BLE) will eliminate the need for ZigBee. There are several arguments against this..
The LAN versus PAN argument
Frankly, there are a lot of parallels with the past confusion between Wi-Fi and Bluetooth.
When Bluetooth was first announced, the marketing hype basically positioned Bluetooth as the solution for everything and definitely predicting“the end”ofWi-Fi (at that time still called: IEEE 802.11).
Today we know that there are two distinct market segments: LAN and PAN. Suppliers have even done significant efforts to make the two technologies (both in the 2.4 GHz frequency range) peacefully coexist
and work together, so when Wi-Fi and Bluetooth are in the same box,
interference between them is avoided as much as possible.In the near future, we expect to have a similar controversy with the rapidly emerging low power (sense and control) networks being resolved.
ZigBee will be used to cover your house while BLE will cover devices inside a room.
ZigBee and Bluetooth Low Energy are complementary and both required:
- ZigBee is LAN networking technology
o Coverage is a house
o Applications are: sense and control networks
- Bluetooth Low Energy is a PAN
o Coverage is a few meters
o Star topology with limited number of nodes
o Applications are: body or peripheral networks
Wulian is one of the global Home Automation leader. As ZigBee participant and ZigBee Alliance China Regional Headquarter location company.
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