Efficient Cooperative Caching with Improved Performance in Wireless Mesh Networks

Abstract

The cache replacement mechanism in cooperative caching has a significant bearing in determining the caches performance. Valid data items still get evicted from the cache space when new item is to be cached but there is no space available to hold it. The existence of data items in caches indicates some degree of interest on the data item. Salvaging the evicted valid data item could improve the overall caching performance. In this paper, we propose an efficient cooperative caching scheme known as CacheRescue for wireless mesh networks. The CacheRescue scheme caches data in the mesh routers expandable storage space to hold valid but evicted data items. We have used simulation to evaluate the performance of CacheRescue scheme. The simulation results show that our proposed approach improves the caching performance when compared to other existing and previously proposed caching solutions.