Protection for scalable data transmissions over lossy networks

The Technology

With the ever increasing complexity of information and compression techniques the incomplete transmission of important data is a concern. UNSW has developed a system to protect scalable data transmitted through unreliable or interrupted networks by reserving slots for retransmission of data.

The system uses two reserved transmission slots to securely transmit a given unit of data without risk of loss. The transmitter can determine the success rate of an initial transmission via feedback from the receiver and re-send the data in the second slot if required potentially using more robust encoding or transmitting only a needed subset of the data. This technique both preserves bandwidth while ensuring all the information is transmitted successfully.

Key Benefits

• Provides a reliable method for sending real-time data (such as video) over lossy channels, where limitations on bandwidth preclude traditional high-redundancy systems.
• Uses two reserved data slots and simple channel condition information to adapt usage of the second slot.
• Predictive algorithms estimate future behaviour and control the transmission

Applications