METHOD FOR PREDICTING DECODING PERFORMANCE OF APPROXIMATE DECODING OF NETWORK CODED SOURCE DATA USING POSITION SIMILARITY INFORMATION

摘要

The present invention relates to network coding, and more specifically, to a decoding performance prediction method for approximate decoding utilizing the position resemblance information of network-coded source data. The decoding performance prediction method according to an embodiment of the present invention receives network-coded data and uses the correlation of the received data to approximately recover lost data. The decoding performance index of the present invention is computed to have a higher value if the success probability of the decoding is higher. When the packet loss ratio is 50% or less, the decoding performance index converges to the maximum saturation level as the position resemblance information decreases. When the packet loss ratio is more than 50%, the decoding performance index converges to the minimum saturation level as the position resemblance information decreases.