Beyond the limits: Maximization of ICN caching capabilities with global detour algorithm

Abstract

Wide range of researchers have explored and criticized the in-network caching performance for a set of algorithms, recently. While there are quite a few caching architecture proposals for Information-centric networks (ICN) to increase the effectiveness of it, there has also been criticisms against it stating that clever ideas do not improve the efficiency latency-wise. On the other hand, the default caching strategy taken by most of the current ICN proposals causes popular objects to be cached redundantly across the network, resulting in a low cache space utilization. We have explored the possibilities of improving the storage efficiency of the cache space instead of the more common latency improvement so that the cache space is utilized to its most. In this work we discuss the ICN caching problem, and discuss a novel distributed architecture based on detour to efficiently use the network-wide cache storage space proposed in a previous work. Then we explore the effects of a universal caching authority over the distributed caching mechanism and the effect of cache clustering on the total hop count required for retrieving the content.