166 research outputs found
Real-time video adaptation in virtualised 5G networks
Get PDFVideo applications are expected to increasingly dominate the traffic of mobile networks in the 5G era, and thus a real-time adaptation of these high resource demanding network applications is crucial in optimising the overall 5G networks. In this manuscript, we leverage Virtual Network Function (VNF) techniques to implement a video adaptation service that automatically adapts the quality of video transmissions depending on the status of the network. Furthermore, Network Function Virtualisation (NFV) techniques are employed here to simplify, optimise and speed up the deployment process of the aforementioned video adapter service (vAdapter), and therefore, allowing its on-demand deployment in a flexible way. We design, implement and test the scheme in a realistic virtualised 5G testbed. Empirical results focus on the scalability evaluation and performance as well as demonstrates a significant bandwidth reduction without compromising the final user’s video quality expectations
ENERGY-NEUTRAL DATA DELIVERY IN ENVIRONMENTALLY-POWERED WIRELESS SENSOR NETWORKS
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Evaluation of Sigfox LPWAN for sensor-enabled homes to identify at risk community dwelling seniors
No full textPerformance analysis of wireless scheduling with ARQ in fast fading channels
Get PDFWe develop a Markov model to study the performance of opportunistic scheduling for downlink data transmissions with type-II packet-combining hybrid ARQ in a multirate cellular network for a fast fading environment. For a two-user scenario with two feasible transmission rates, there exists an operating region within which opportunistic scheduling maintains its scheduling gain over round-robin scheduling. In ongoing work, we seek to extend the analysis of the model as well as generalize the model to a multi-user scenario
Technology-enabled medication adherence for seniors living in the community: Experiences, lessons, and the road ahead
Get PDFSingapore National Research Foundation; Singapore Ministry of National Developmen
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