DATA TRANSFERRING SYSTEM AND METHOD USING NETWORK CODING

摘要

PURPOSE: A data transmission system at a network using network coding and a method thereof are provided to abandon a packet with an error, by checking integrity of received data using a checksum in the unit of block. CONSTITUTION: A transmission side node(100) includes a channel forming part(102), a data processing part(104) and a transmission part(106). The channel forming part forms a security channel. The channel forming part shares a security key with a reception side node(140). The data processing part generates a transmission packet. The data processing part calculates checksum value to each block. The data processing part transmits the calculated checksum value to the reception side node. The transmission part transmits the transmission packet to the reception side node. The reception side node checks integrity of the received transmission packet by comparing the calculated checksum value with the checksum value received from the transmission side node.