DELTA++: Reducing the Size of Android Application Updates

Abstract

Compression can be a useful tool to reduce network bandwidth usage. We have developed an improved compression method for Android application updates called DELTA++ that achieves an additional 50% traffic reduction when compared to Google Smart Application Update. We estimate that the extra reduction in network bandwidth use from using DELTA++ would be about 1.8% of all annual cellular traffic in the US. Increased battery discharge from DELTA++ was found to be negligible. If similar methods were to be used for iPhone application updates even larger savings could be achieved

Existing System

Proposed System

Architecture