A Pre-Caching Strategy Based on the Content Relevance of Smart Device’s Request in Information-Centric IoT

A Pre-Caching Strategy Based on the Content Relevance of Smart Device’s Request in Information-Centric IoT

Blog Article

In recent years, investigations on various forms of solution for Internet of Things (IoT) paradigm opens the new era of smart devices.The Information-Centric Internet of Things (IC-IoT) can apply the characteristics of content caching which is a typical feature of Information-Centric Networking.Therefore, designing an efficient caching strategy for IC-IoT is able to improve the efficiency of smart devices.In this paper, we propose Air Freshener a Pre-Caching Strategy based on the Relevance of smart device request Content, namely PCSRC.After the first request of content chunk at a smart device side, PCSRC pre-caches the rest of the content chunks.

There are two types of cached content chunks, that is, actual requested content chunks and pre-caching content chunks.Actual requested content chunks are pushed forward hop-by-hop according to the trend of the local activity.The popular content will be gradually pushed to the edge of IC-IoT.Furthermore, a sojourn time of a cached content chunk is employed to save storage space.The simulation results show PCSRC can reach 42.

7% on the cache hit ratio with the different storage sizes.For the average hop count, PCSRC can increase about 42.2% than that of ProbCache.And PCSRC can improve Downstems about 47.9% than that of CEE for the average hop count.