A home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) comprising: a communicator comprising circuitry; and a processor configured to: based on an event for communication connection to at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) occurring, receive a signal including identification information of the at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) from the external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) via the communicator for a predetermined period of time, identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) based on the received signal, execute communication connection to the identified external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660), and characterized in that the processor is configured to identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) in a predetermined arrangement state based on an intensity of the received signal. a communicator comprising circuitry; and a processor configured to: based on an event for communication connection to at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) occurring, receive a signal including identification information of the at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) from the external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) via the communicator for a predetermined period of time, identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) based on the received signal, execute communication connection to the identified external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660), and characterized in that the processor is configured to identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) in a predetermined arrangement state based on an intensity of the received signal. based on an event for communication connection to at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) occurring, receive a signal including identification information of the at least one external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) from the external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) via the communicator for a predetermined period of time, identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) based on the received signal, execute communication connection to the identified external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660), and characterized in that the processor is configured to identify an external home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) arranged adjacent to the home appliance (100, 100-1, 100-2, 100-3, 310, 320, 330, 340, 350, 360, 410, 420, 430, 610, 620, 630, 640, 650, 660) in a predetermined arrangement state based on an intensity of the received signal.