CodingCache

Abstract

Content Centric Networking (CCN) performance by definition depends on the in-network caching efficiency. We propose CodingCache which utilizes network coding and random forwarding to improve caching efficiency under multipath forwarding. Its advantage is that existing caching strategies can be easily incorporated with it for better performance. We evaluate CodingCache by extensive simulation experiments with the China Telecom network topology and a unique dataset consisting of video access logs from the PPTV system. The results demonstrate that compared with the CCN caching strategy, CodingCache improves the cache hit rate by about 60%.