METHOD FOR COMMUNICATION DATA OF HETEROGENEOUS WIRELESS NETWORK

摘要

A method for data communication of heterogeneous wireless networks using the same frequency, which can minimize interference on data received and transmitted in the heterogeneous wireless networks. The method for data communication comprises: a step in which a master and a slaver, which are connected to each other through a wireless network, executing periodic data transmission/reception by sending and receiving a data transmission request signal (Req) and a data reception acknowledgement signal (Ack) through an occupied channel; a step in which the master detects a reception failure rate of the data reception acknowledgement signal (Ack) provided by the slave for a preset time period; a step in which the master searches for an idle channel if the reception failure of the data reception acknowledgement signal (Ack) exceeds a preset threshold 1; a step in which the master pauses the data transmission/reception with the slave if the reception failure of the data reception acknowledgement signal (Ack) exceeds a preset threshold 2, and transmits a channel hoping messaging together with the searched idle channel to the slave; and a step in which the master occupies the idle channel when receiving an acknowledgement signal (Ack) of the channel hopping message from the slave, and restarts the data transmission/reception through the idle channel.