A Dynamic Self-adapting Algorithm of Redundancy Parameter in TCP-NC

摘要

We propose a method of dynamically adjusting redundancy parameter,which can be applied in "Network Coding Meets TCP".It can help solve the packet losses in the TCP layer and be part of the new protocol in the future Internet.In our scheme,we mainly introduce "time-cache" and "time-classification management algorithm" to the network coding layer of the sender.By analyzing the time difference between the acknowledgements given by the sink,we can give the right value of redundancy parameter using time-classification management algorithm,for choosing a right value of redundancy parameter is very important to mask losses from TCP.Finally,we give the theoretical analyses of the algorithm and get the optimal solution of redundancy parameter.As a result,network coding can perfectly meet TCP in the lossy links.