Performance of Homogeneous and Heterogeneous Cache Policy for Named Data Network
I Gede Esa Mahananda, Leanna Vidya Yovita, Ridha Muldina Negara · 2022
The internet today is a host-centric and cannot efficiently accommodate data communications. Only the destination node can provide a response for consumer. To support e-services and dynamic demands from consumers, a content-centric network is needed to accomodate communication efficiently. The Named Data Network (NDN) is a content-centric network, candidate of future internet. One of the main elements of NDN is the content store which is used for caching. We can apply various cache policy in the content store to provide performance according to requirements, specifically homogeneous and heterogeneous mechanism. In the homogeneous cache, the content store capacity is the same for all nodes in the network, and heterogeneous is the opposite condition. Heterogeneous scheme with higher capacity in core network provides the better cache hit ratio and delay for all of scenarios. The most significant cache hit ratio is provided for the heterogeneous scheme with bigger content store capacity using LFU, that is 28% better than LRU.