Cioni, Stefano and Vanelli-Coralli, Alessandro and Párraga Niebla, Cristina and Scalise, Sandro and Seco Granados, Gonzalo and Vázquez Castro, María Ángeles (2007) Antenna diversity and GSE-based packet level FEC for DVB-S2 Systems in Railway scenarios. In: 25th AIAA International Communications Satellite Systems Conference (ICSSC 2007), Seoul, South Korea, 10 - 13 Apr 2007. 25th AIAA ICSSC 2007, 2007-04-10 - 2007-04-13, Seoul, South Korea.
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In this paper, we address the study of a broadband satellite system based on DVB-S2 for interactive services in a mobile scenario. In particular, we focus on the railway scenario when the train is moving with high speed under LOS (Line of Sight) conditions considering also the atmospheric effects for Ku band. We aim at the design of fading countermeasure to compensate the impact of short and medium term fading that is present in the LOS case, which is owed to the speed, the near environment (modelled by a Rice model) and the power arches. Long term signal blockage due to e.g. railway tunnels has not been considered in this study. With the purpose of compensating for these effects, the use of packet-level FEC and antenna diversity has been already proposed. In this paper, a further development of packet-level FEC, in combination or not with antenna diversity, is proposed. We propose a coding that differentiates classes of service thus avoiding guaranteeing quasi-error free PER performance for applications that do not need it with the consequent gain in capacity. Furthermore, we consider the adaptation layer to be based on the novel GSE (Generic Stream Encapsulation) encapsulation method currently under standardization process. Our results show that our proposed fade mitigation techniques yield improvements of average packet error rate.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Antenna diversity and GSE-based packet level FEC for DVB-S2 Systems in Railway scenarios|
|Date:||14 March 2007|
|Journal or Publication Title:||25th AIAA International Communications Satellite Systems Conference (ICSSC 2007), Seoul, South Korea, 10 - 13 Apr 2007|
|In ISI Web of Science:||No|
|Keywords:||Forward Error Correction, Mobile DVB-S2/RCS, satellite systems, QoS, GSE, fade mitigation techniques|
|Event Title:||25th AIAA ICSSC 2007|
|Event Location:||Seoul, South Korea|
|Event Type:||international Conference|
|Event Dates:||2007-04-10 - 2007-04-13|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W - no assignement|
|DLR - Research area:||Space|
|DLR - Program:||W - no assignement|
|DLR - Research theme (Project):||W -- no assignement (old)|
|Institutes and Institutions:||Institute of Communication and Navigation > Digital Networks|
|Deposited By:||Cristina Parraga Niebla|
|Deposited On:||11 Jun 2007|
|Last Modified:||15 Jan 2010 00:48|
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