Mobility

A Bandwidth and Effective Hit Optimal Cache Scheme for Wireless Data Access Networks With Client Injected Updates

Date Added: Mar 2012
Format: PDF

In this paper, the authors propose an optimal cache replacement policy for data access applications in wireless networks where data updates are injected from all the clients. The goal of the policy is to increase effective hits in the client caches and in turn, make efficient use of the network bandwidth in wireless environment. To serve the applications with the most updated data, they also propose two enhanced cache access policies making copies of data objects strongly consistent. They analytically prove that a cache system, with a combination of their cache access and replacement policy, guarantees the optimal number of effective cache hits and optimal cost (in terms of network bandwidth) per data object access.