Fan Qiu

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Wireless Networked Control Systems (NCS) are increasingly deployed to monitor and control Cyber-Physical Systems (CPS). To achieve and maintain a desirable level of performance, NCS face significant challenges posed by the scarce wireless resource and network dynamics. In this paper, we consider NCS consisting of multiple physical plant and digital(More)
Joint congestion control and scheduling has been widely applied to resource allocation in multi-hop wireless networks. Existing algorithms usually rely on seamless cooperation between network components to seek the optimal solution. However, this is unrealistic considering the presence of time delay and channel capacity perturbation in real wireless(More)
The goal of this paper is to minimize service disruption, a unique phenomenon in peer-to-peer (P2P) streaming system and the major contributing factor to degrade user experience. In order to improve its streaming quality and stability, a P2P system should select peers with abundant bandwidth resource and prospect longevity as the parents of other peers.(More)
Integrating Peer-to-Peer streaming with wireless networks is a promising technique which promotes ubiquitous multi-media services. Rate allocation within this context is essential to the overall performance of a streaming system due to the limitation of wireless network resource. Optimizing rate allocation in wireless P2P streaming poses us the twofold(More)
In this paper we propose a quantitative model to study user satisfaction level in online video streaming, which features great variety across video access sessions under the impact of network conditions and user-specific factors. By applying survival analysis to video session duration ratio, which in our study is regarded to be a measure of user(More)