A method of transmitting and receiving data frames using pulses is disclosed. According to the transmitting method, a first signal is transmitted including one or more bursts of pulses during a first portion of a transmission frame, and not transmitting the first signal during a second portion of the transmission frame. The not transmitting the first signal may include maintaining one or more silence periods for the second portion of the transmission frame, or transmitting a second signal distinct from the first signal. According to the receiving method, a signal including one or more bursts of pulses is received during a first portion of a transmission frame, an analysis of the one or more bursts of pulses is performed, and the transmission frame is detected based on the analysis of the one or more bursts of pulses.