Design and implementation of a two layer RFID network
Ching-Laam Leung, Steven Law, W.S. Chan, Y.M. Siu · 2008
In the past the implementation of a two layer RFID network would have been unacceptably complex and expensive. The work presented here overcomes this by making use of a ZigBee network which has a built in function for mesh networking and is low in cost.