A Data Activity-Based Server-Side Cache Replacement for Mobile Devices

Mobile environment allows us to access data anytime, anywhere from a wireless network in which mobile data management plays an important role. Power consumption on mobile side is a major constraint in wireless network. By reducing the access delay, we can optimize the power. Hence, one way to reduce the delay is by increasing the cache hit ratio. In this paper, to increase cache hit ratio, we introduce an AUB cache management scheme includes prefetching and ALFU cache replacement policy at server-side cache. AUB cache management scheme is designed with both access and update information and partition the cache into two zones: Active zone and Safe zone. Based on the access and update information, data is organized in their respective zone. The AUB cache management addresses the shortcomings of power consumption due to access delay and it also minimizes the workload of the main server.