MULTIPLE MULTICAST NETWORK SYSTEM AND METHOD FOR ENSURING RELIABILITY

摘要

A multiple multicast network system and method for ensuring reliability in such a network are provided. A multiple multicast method in a multiple multicast network system may include grouping terminals having data to be transmitted to each other in a group. The method transmits, by each of the terminals in the group, data of each of the terminals to the other terminals in the group. In response to receiving the data, the method provides, to the terminals in the group, as feedback, missing packet information, and generates, by a terminal among the terminals in the group, a secondary network-coded packet by performing network coding based on a successfully received packet and data of each of the terminal, and transmits the secondary network-coded packet to the other terminals in the group based on the missing packet information.

主权项

1. A terminal, comprising:
a primary transmission processing unit configured to generate a primary network-coded packet by performing network coding on data of the terminal, and to transmit the primary network-coded packet to the other terminals in a group; a feedback processing unit configured to transmit missing packet information of missing packets of the terminal to the other terminals in the group, and to receive missing packet information from terminals having missing packets in the group, wherein the missing packets are packets that the terminal fails to receive from the other terminals in the group; and a retransmission processing unit configured to transmit a secondary network-coded packet to the other terminals in the group by performing network coding based on a successfully received packet and the data of the terminal, in response to the terminal being a retransmission terminal, and based on the missing packet information.