Path Segmentation-Based Hybrid Caching in Information-Centric Networks

Abstract

Information-centric networks (ICNs) have received wide interest from researchers, and in-network caching is an important characteristic of ICN. The management and placement of contents are essential due to cache nodes’ limited cache space and the huge Internet traffic. This paper focuses on coordinating two cache metrics, namely user access latency and network resource utilization, and proposes a hybrid caching scheme called the path segmentation-based hybrid caching scheme (PSBC). We temporarily divide each data transmit path into a user-edge area and non-edge area. The user-edge area adopts a heuristic caching scheme to reduce user access latency. In contrast, the non-edge area implements caching network content migration and optimization to improve network resource utilization. The simulation results show that the proposed method positively affects both the cache hit ratio and access latency.

A Novel Hypercube-based Approach to Overlay Design Algorithms on Topic Distribution Networks

“…The execution times of the algorithms for different number of subscriptions, nodes, and topics are listed in Tables 19,20,21 and Figures 14,15,16 respectively. Although all execution times are more than the previously developed TD-CD-ODA, Hypercube-ODA has similar execution times with the other algorithms.…”