Underwater transceiver device, underwater communication system and related communication method

A method of communication of sensor data in an underwater communication system comprising at least two underwater transceiver devices forming a self-organized network of underwater devices, each being arranged to receive sensor data from at least one sensor unit integrated or functionally connected to the transceiver device and each having a programmed repeating timing scheme with a limited number of time slots allowed for transmission of data packets, the method comprising

• powering on the underwater transceiver devices,
• transmitting a signal from at least a first underwater transceiver device as a data packet according to a transmission timing scheme of said first transceiver device,
• receiving said data packet in a second underwater transceiver device,
• synchronizing a transmission timing scheme of the second underwater transceiver device with the transmission timing scheme of the first underwater transceiver device based on the time of receipt of the data packet from the first underwater transceiver device by selecting and reserving a free time slot in said transmission timing scheme such that the first and second underwater transceiver devices use different time slots for transmission of data packets in said self-organized network of underwater devices, and
• transmitting sensor data containing signals from said first and second transceiver devices according to their synchronized transmission timing schemes, so that their data packets form an ordered data stream.