Exploiting Diversity for Multimedia Audio Streaming

This work explores how to leverage diversity in cellular environments for improving multimedia streaming applications, especially audio streaming. The main motivation for this work stems from the observation that cellular channels exhibit both uncorrelated and correlated behavior on a variety of levels. Hence we first examined the statistical properties of the  cellular links, and then proposed three different techniques exploiting channel and network diversity to help improve statistical throughput and multimedia quality.

Based on our empirical observations, we
designed and implemented a high quality multimedia streaming application called VorbisStreamer augmented with Unequal Error Protection (UEP) channel coding techniques to improve audio streaming performance. Our experiments over a cellular GPRS network testbed demonstrated substantial benefits from each of the proposed channel diversity schemes.

->  Overview Overview
->  Deployment Tests over commercial GPRS network.
->  Screenshots Some Screenshots
->  Source Code Implementation overview


Cambridge Open Mobile System

University of Cambridge Computer Laboratory