Physical position based shortcut tree routing in ZigBee WSN's.

ZigBee is a worldwide standard wireless personal area network that focuses on reducing power conception and it is also cost efficient, reliable and also contains scalable products and applications. In data communication networks, most significant functions is routing between nodes. ZigBee standard helps a combination of tree routing and vector routing on demand. Shortcut Tree Routing (STR) extensively improves the path effectiveness of ZigBee tree routing by including only the neighbor details of a hop. Also, the routing path is not always optimal in one feature of end-to-end hop distance is STR limitation. Performance of packet delivery ratio and end delay of STR is poor. ZigBee tree routing cannot provide the optimal routing path. To overcome these limitations, enhancement of STR is proposed in this method to improve the delay against STR. It is clearly that preserving two-hop neighbor information generates large protocol overhead on network through large node density. So, this work proposes an enhancement of the STR along with the information on physical position of nodes. That is, STR is used to find the next hop and from which the physical distance among node and destination is used as one of the parameters to get the good route. [ABSTRACT FROM AUTHOR]