dc.contributor.authorMa, Ting
dc.contributor.authorLee, Yee Hui
dc.contributor.authorWinkler, Stefan
dc.contributor.authorMa, Maode
dc.identifier.citationMa, T., Lee, Y. H., Winkler, S., & Ma, M. (2015). QoS provisioning by power control for video communication via satellite links. International Journal of Satellite Communications and Networking, 33(3), 259-275.en_US
dc.description.abstractVideo transmissions over satellite links are sensitive to signal fades because of rain, especially in the tropics. We performed a video-streaming experiment over a satellite link for 24 days distributed over 1 year to investigate the effects of rain fade. Based on the measurements, models for the relationships between rainfall rate, power level, packet loss, and video quality are proposed. Furthermore, for both uplink and downlink channel, an adaptive closed loop power control algorithm, with a Proportional–Integral–Derivative controller is designed. This is used for the mitigation of the rain-induced attenuation in order to guarantee a certain level of Quality of Service and Quality of Experience. Simulation results show the effectiveness of the proposed power control solution and its ability to sustain video quality levels in spite of rain fades.en_US
dc.format.extent17 p.en_US
dc.relation.ispartofseriesInternational Journal of Satellite Communications and Networkingen_US
dc.rights© 2014 John Wiley & Sons, Ltd.en_US
dc.subjectKa-band satelliteen_US
dc.subjectVideo-streaming qualityen_US
dc.titleQoS provisioning by power control for video communication via satellite linksen_US
dc.typeJournal Article

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