DVB-S2 full cross-layer design for QoS provision

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Vazquez Castro, M.Angeles (Author) FEUP; Fausto Vieira (Author) FEUP

Journal

Title: IEEE Communications Magazine

Vol. 50 No. 1

Pages: 128-135

ISSN: 0163-6804

Publisher: IEEE

Indexing

ISI Proceedings

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Abstract (EN): The second generation of the Digital Video Broadcasting standard for Satellite transmission, DVB-S2, is the evolution of the highly successful DVB-S satellite distribution technology. DVB-S2 has benefited from the latest progress in channel coding and modulation such as Low Density Parity Check Codes and higher order constellations to achieve performance that approaches Shannon??s theoretical limit. We present a cross-layer design for Quality-of-Service (QoS) provision of interactive services, which is not specified in the standard. Our cross-layer approach exploits the satellite channel characteristics of space-time correlation via a cross-layer queueing architecture and an adaptive cross-layer scheduling policy. We show that our approach not only allows system load control but also rate adaptation to channel conditions and traffic demands on the coverage area. We also present the extension of our cross-layer design for mobile gateways focusing on the railway scenario. We illustrate the trade-off between system-wide and individual throughput by means of simulation, and that this trade-off could be a key metric in measuring the service level of DVB-S2 Broadband Service.

Language: English

Type (Professor's evaluation): Scientific