I would like to implement an object localization system using ZigBee network. Basically, I will have fixed ZigBee routers or stationary nodes that can communicate with a ZigBee mobile device (Tag) to determine the RSSI. In this case, I want to be able determine the RSSI of each router. Will I be able to do this with XBee Series 2? If not, what can I use to achieve this? I've attached a diagram for illustration.
Also, I want to be able to track more than one tag or mobile node.
System diagram: http://i.imgur.com/Vdo9Nk9.jpg