  The last years have witnessed a dramatic growth in the number as well as the
variety of graphics intensive mobile applications, which allow users to
interact and navigate through large scenes such as ancient places, museums and
even virtual cities. These applications support many clients and impose a heavy
requirement on network resources and computational resources. One key issue in
the design of cost efficient mobile walkthrough applications is the data
transmission between servers and mobile client devices. In this paper, we
propose an effective progressive mesh transmission framework that stores and
divide scene objects into different resolutions. This way, each mobile
progressively receives and process the only object's details that match with
its display resolution, and hence improving the user's perception and overall
system's response time. A fine grained cache mechanism is used to keep the most
frequently requested objects' details in the device memory and consequently
reduce the network traffics. Lastly, practical experiments are carried out to
illustrate the effectiveness of the proposed framework under various setting of
the virtual scene and mobile devices configuration/types.
