Magnetic field communication method for recognizing multi-node

PURPOSE: A magnetic field communication method for multi-node recognition is provided to smoothly perform wireless communication between MFAN-C(Magnetic Field Area Network Coordinator) and MFAN-N(Node). CONSTITUTION: At least one among receives response packets is selected. A response receiving confirmation packet is transmitted to a node corresponding to the selected response packet. Response packet retransmitting a node which can not receive the response receiving confirmation packet is received. At least one among the received response packet is selected. The receiving confirmation packet is transmitted to a node corresponding to the selected response packet.