Higher-quality videos on your handheld
The ‘Design, analysis and applications of robust and efficient transmission schemes for multimedia streaming in wireless networks’ (MMStream) project was initiated to investigate improved transmission schemes for real-time scalable image/video streaming to handheld devices. Given that recent research suggests the benefit of one or more additional users acting as a relay between source and destination, the researchers set out to thoroughly investigate the limits of currently available multi-user communication setups and to extend existing models for wireless multicast/broadcast communications. In particular, the researchers investigated generic code design optimisation for application layer codes (application layer forward error correction, or AL-FEC) for use in a wide variety of communications scenarios taking into account recent advances in scalable video coding (SVC). The investigators conducted a rigorous theoretical analysis resulting in precise achievable performance limits. In addition, they extended this work to the area of cooperative relay-assisted coding to evaluate multi-user communication setups. Such setups utilise cooperative coding among sources and assisting nodes for multimedia streaming in ad hoc wireless networks. Project efforts should provide important additional enhancements to the design of robust and efficient transmission schemes for multimedia streaming in wireless networks. Given the ubiquitous nature of multimedia streaming to handheld devices, the MMStream project could provide a competitive edge to the European communications industry.
