Provided is a wireless communication device including at least one processor configured to transmit a plurality of test signals generated based on different transmission factors to a reception device, and transmit first data to the reception device based on a transmission factor of a first test signal among the plurality of test signals in response to determining a first acknowledgement signal has been received, the first acknowledgement signal corresponding to the first test signal, the transmission of the first data being via a wireless data channel while second data is contemporaneously transmitted via the wireless data channel by another device.