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QoS provisioning by power control for video communication via satellite links

By September 2, 2014 Industry News No Comments

SUMMARY

Video 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.

Ma T., Lee Y. H., Winkler S. and Ma M. “QoS provisioning by power control for video communication via satellite links” Wiley, 1 September 2014. Web. 2 September 2014.

http://onlinelibrary.wiley.com/doi/10.1002/sat.1087/abstract

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