An Improved Architecture for Complete Cache Management in Mobile Computing Environments

摘要

Caching plays a key role in mobile computing because of, its ability to alleviate the performance and availability limitations of weakly-connected and disconnected operations. Caching frequently accessed data objects at the local buffer of a mobile is an efficient way to reduce query delay, save bandwidth and improve system performance. Classical cache management strategies may not be suitable for mobile environments due to the disconnection and mobility of the mobile clients. Cache management in mobile environment, in general, includes cache placement, cache discovery, cache consistency and cache replacement techniques. In this study, we design a combined cache management architecture which includes all the above techniques. By simulation results, it has been shown that our proposed architecture achieves lower latency and packet loss, reduced network bandwidth consumption and reduced data server workload.