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In OpenFlow-based SDN environment, we have designed and implemented the middle-box and splitting functionalities for chunked video streaming over multiple concurrent paths and constructed a prototype system to evaluate these functionalities with various scenarios of splitting ratio. The multi-path chunked video streaming has been tested in the Open vSwitch (OVS)-enabled Mininet-emulated network testbed...
In this work-in-progress paper, we present a network coding scheme based on random linear coding (RLC), named cumulative RLC. Cumulative RLC applies RLC in a cumulative manner such that the end-to-end delay is minimized and it can be used for real-time one-to-many video distribution over wireless networks. The proposed cumulative RLC is well-suited especially for media applications with low-latency...
In this paper, we carry out a transparency analysis and propose a haptic synchronization scheme for force-reflecting teleoperations such as a telerobotic game over time-varying network delays. The transparency analysis quantifies the force feedback distortion caused by network delay and packet loss, and predicts the maximally allowable delay and loss for predefined transparency requirements. In order...
Haptic-based NVEs (networked virtual environments) with CS (client/server) communication architectures support better consistency but induce larger end-to-end delays than those with P2P (peer-to-peer) communication architectures. Unfortunately, large delay severely deteriorates the transparency (i.e., reality) of haptic interaction. To improve the haptic interaction quality for haptic-based NVEs with...
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