Flow control enhancements in Content Centric Networking

In window-based flow control mechanism for Content Centric Networking (CCN), for one Interest (a content request packet), more than one Content Objects (content chunks) are expected to be received. TCP´s RTT estimation algorithm cannot be used directly for such scenarios because for some contents, there will be no Interest reference. In this paper, we extend TCP´s RTT estimation for window-based flow control mechanism. We also estimate the processing time delay and use the estimate to compute a number of timer values. The proposed mechanism is supported by various experimental results. In addition to that, we also propose an optimization for Content Store processing in window-based flow control mechanism for the received Interest packet and compare the results obtained from the actual implementation.