Supermedia transport for teleoperations over overlay networks

Abstract

In real-time Internet based teleoperation systems, the operator controls the robot and receives feedback through the Internet. Supermedia refers to robotic control commands, video, audio, haptic feedback, and other sensory information in the control system. Traditional transport services may not be able to meet the timely transmission requirements and dynamic priority changes of supermedia streams. Supermedia TRansport for teleoperations over Overlay Networks (STRON) uses multiple disjoint paths and forward error correction encodings to reduce end-to-end latency for supermedia streams. Network routes and encoding redundancy may be adjusted dynamically to meet the supermedia QoS requirements. NS2 simulations and evaluations using available bandwidth traces from globally distributed computing nodes show that STRON can significantly reduce latency compared with available transport services. © IFIP International Federation for Information Processing 2005.