ZigBee hybrid routing considering the IEEE 802.15.4 medium access control

This paper proposes a Hybrid Routing(HR) using ZigBee Tree Routing(ZTR) and Shortcut Tree Routing(STR). ZTR transmits a data through the parent node and the child node, and STR transmits a data to neighbor node which has the smallest number of hops toward the destination node in the neighbor table. On the other hand, HR method uses either ZTR or STR method according to situation of collision of CAP interval and confusion of node sending data. Through this proposed method, data transmission delay has been reduced. Simulation results show that the transfer delay of HR is lower than those of ZTR and STR.