The Low Power Study Based on ZigBee Network

In this paper we analyze the node´s process of backoff countdown under working at star topology, discuss the access probability and power consume that all probability state of nodes during a superframe. The course of power consume showed that it´s not feasible to reduce system power consumption by adjusting the TX power, the only way reducing the nodes in the receiving state and the sparing time to complete. Also pointed out that the following two methods can reduce power consumption of nodes, using a long frame, But long frame will increase the delay and increase the cost of system. The other is through a relatively reduced number of nodes to improve access probability to achieve the goal of reducing energy consumption.