STR: An Efficient Shortcut Tree Routing Method for Zigbee Wireless Networks

Zigbee is worldwide standard of wireless personal area network for low power, cost effective, reliable and scalable product and application. It’s different from other personal area network standard such as Bluetooth, wireless USB. Zigbee provides the low power wireless mesh networking and supports up to thousands of device in a network. Zigbee Tree Routing, which doesn't need any routing table/route discovery overhead is used in several resource limited devices and applications. ZTR has a basic limitation regarding providing of optimal routing path as it follows tree topology, hence an optimal routing path can't be achieved. In this paper, we proposed a protocol stated as Shortcut Tree Routing (STR) similar to ZTR's entities, such as low memory consumption, no route discovery overhead, providing nearest optimal routing path using hierarchical addressing scheme and calculating the remaining hops from source to destination. The performance evaluation indicates, STR accomplishes the performances of AODV and ZTR in certain conditions of it, such as network density, configurations and network traffic patterns.