A DATALINK LAYER RECEPTION PROTOCOL FOR LONG RANGE UNDERWATER NETWORKS

摘要

The present invention relates to a datalink layer reception protocol for a long range underwater network. The present invention comprises: (a) an initial stage for a bus bar to set an initial communication path; (b) a normal stage for the bus bar and multiple cluster heads to communicate through the communication path; and (c) a final stage for the bus bar and the multiple cluster heads to finish the communication. The communication transmits and receives a packet-train type packet for transmitting the packet en bloc in a time division multiple access (TDMA). The packet receiving method of the packet-train train type comprises the steps of: (d) receiving the packet from Q by a packet-train lead algorithm to check the table of RX state and a header based on whether there is an error in the received packet, initializing the times of packet loss and the number of packets received based on whether reception is repeated to check if the received number of packets is the same as the total number of the packets based on whether newly created packets are received in the middle; and (e) checking if the table of RX state is updated or not and if the same is transmitted to an upper level based on reception signals are identical to a seq value of a beacon signal or are uplink data after receiving the packet train produced by the packet-train lead algorithm.