A communication, an air conditioner, and a method for controlling the communication apparatus are disclosed. The communication apparatus includes a communicator and a controller. The communicator is configured to receive a recognition signal from each of one or more other communication apparatuses. The communicator is also configured to transmit a generated first status message generated based on the recognition signal. The communicator is also configured to receive at least one second status message generated by the one or more other communication apparatuses. The controller is configured to generate the first status message based on the recognition signal received by the communicator. The controller is also configured to determine a repeat node by comparing the second status message with the first status message.