Method of sending a message after listening to a communication channel shared by terminals

A method of transmitting, by a terminal of a wireless communication system, a message on a communication channel shared with other terminals. Before sending the message, the terminal listens on the communication channel until the terminal detects an absence of activity on the communication channel for an inactivity time ΔTin. When no activity is detected on the communication channel for the inactivity time ΔTin, the terminal waits for a waiting time ΔTat and then transmits the message on the communication channel. The waiting time ΔTat is identical for all of the terminals of the wireless communication system.