Mobility Enhancement for Digital Video Broadcast Networks Via Satellite

Burak Unal, Ashraf Ali, Nicholas Avlonitis, Ifiok Otung

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid


    The DVB-S2 standard has been optimised for provision of broadband multimedia services to geographically dispersed fixed satellite end-users under line-of-sight (LOS) channel condition. However, continuing growth in demand for mobile
    broadband services via satellite necessitates a detailed examination of the DVB-S2 technology to assess its suitability for application in the mobile satellite environment. The environment is affected by signal fading due to path blockage,
    multipath propagation and shadowing, Doppler shift which is expressed by the Rician channel K-factor parameter values. In this paper, a model was developed in MATLAB® to simulate transmission scenarios through a mobile satellite channel, in order to investigate the bit-error-rate (BER) performance of the 16-APSK and 32-APSK modulation formats for different coding rates. This modelling of higher modulation formats of the DVB-S2 standard until now, has not been addressed
    adequately in related literature. Moreover, the mobility effect over the BER performance is not well investigated in the literature especially for high modulation schemes. Results obtained by simulation indicate a significant degradation in the system’s BER when compared to a line-of-sight channel
    condition. Which even becomes worse with added varying mobility scenarios. However, higher Rician channel K-factor values tend to improve the link quality closer to that of the AWGN. These results highlight a crucial need to develop
    improved receiver processing and new switching thresholds applicable to the mobile satellite environment that deliver improved link availability as well as enhanced data throughput for different mobility scenarios.
    Iaith wreiddiolSaesneg
    TeitlAdvances in Communications Satellite Systems
    Is-deitlProceedings of The 36th International Communications Satellite Systems Conference (ICSSC-2018)
    GolygyddionIfiok Otung, Thomas Butash, Peter Garland
    Man cyhoeddiStevenage, UK
    CyhoeddwrInstitution of Engineering and Technology
    Nifer y tudalennau9
    ISBN (Electronig)978-1-78561-962-5
    ISBN (Argraffiad)978-1-78561-961-8
    Dynodwyr Gwrthrych Digidol (DOIs)
    StatwsCyhoeddwyd - Ion 2020

    Cyfres gyhoeddiadau

    Enw36th International Satellite Communications Systems Conference (ICSSC2018)

    Ôl bys

    Gweld gwybodaeth am bynciau ymchwil 'Mobility Enhancement for Digital Video Broadcast Networks Via Satellite'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

    Dyfynnu hyn