of transmission by a node of a communication network Technical

The invention relates to a transmission method by a node of a communication network, wherein the nodes communicate with each other via a multiple access channel with carrier sensing, said method comprising: a step of emission of a signal at a transmit power and a rate given the channel to a receiver node; characterized in that the transmitted signal power of the transmitting successively assumes a first power value for a first duration then a second power value during a second period, the two power values ​​being different and one of them being equal to the given power, the first duration being representative of the given power and the second period being representative of the flow. the invention also relates to a method of receiving a signal transmitted according to the transmission method used to deduce the transmission power used and the flow ed by the transmitting node from the received signal.