Call Admission Control for Weather-Impacted Multimedia Satellite Networks

Imole, Olugbenga E.; Walingo, Tom

doi:10.1109/vtcspring.2017.8108499

Cited by 3 publications

(1 citation statement)

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“…Other proposals for CAC in satellite networks [5][6][7], where rain fading is mitigated by the adaptation of forward error correction (FEC) codes only, to the rain attenuation dynamics are not optimal in performance. A basic yet dynamic approach to admission control and link state prediction and adaptation to mitigate rain attenuation in satellite networks is presented in [23]. Although the proposed approach yields promising results, a more robust modeling of the various rain conditions should be considered and used to test the performance of the proposed approach.…”

Section: Related Workmentioning

confidence: 99%

Performance of Resource Management Techniques for Weather-Impacted Satellite Networks

Imole

Walingo

2019

Journal of Computer Networks and Communications

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Signals transmitted via satellite networks at high frequency in the Ka, Q, and V bands are susceptible to degradation due to rain attenuation. Adaptive transmission techniques are usually employed to mitigate the effect of rain and improve users' quality of service (QoS) but the effectiveness of these techniques hinges on the accuracy with which rain attenuation on the link is known. Commonly, most techniques rely on predicted attenuation along the link for selection of optimal transmission parameters. is paper proposes an efficient approach to predict the rain attenuation experienced by sources of multimedia connections in rainimpacted satellite networks. e proposed technique is based on three Markov models for widespread, shower, and thunderstorm rain events and predicts the attenuation experienced at different periods within the duration of a user's connection. It relies on an adaptive modulation and coding (AMC) scheme to dynamically mitigate rain attenuation and a call admission control (CAC) policy to guarantee the satisfaction of users' QoS requirements.

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