NDLI: Enhanced Dynamic Resource Allocation for DVB-RCS: a Cross-Layer Operational Framework

Content Provider	IEEE Xplore Digital Library
Author	Morell, Antoni Seco-Granados, Gonzalo Vazquez-Castro, Maria Angeles
Copyright Year	2007
Description	Author affiliation: Universitat Autònoma de Barcelona (UAB), Telecommunications and System Engineering Department (TES). e-mail: Antoni.Morell@uab.es (Morell, Antoni) \|\| Universitat Autònoma de Barcelona (UAB), Telecommunications and System Engineering Department (TES). e-mail: Gonzalo.Seco@uab.es (Seco-Granados, Gonzalo) \|\| Universitat Autònoma de Barcelona (UAB), Telecommunications and System Engineering Department (TES). e-mail: Angeles.Vazquez@uab.es (Vazquez-Castro, Maria Angeles)
Abstract	This work deals with an enhanced Dynamic Bandwidth Allocation (DBA) scheme designed for satellite communication networks deployed under DVB-RCS. Our contribution defines a DVB-RCS standard-compliant operational framework that, unlike other approaches, fixes some structure in the general and combinatorial DBA problem. This results in reduced signalling, increased robustness to PHY-layer changes and reduced complexity of the subsequent allocation. Thereafter, the DBA problem is cast in a mathematical optimization problem and a fast algorithm to solve it is proposed. Moreover, the problem formulation guarantees maximum fairness among users and establishes a link to deal with QoS requirements at higher layers. This cross-layer solution is specially interesting when merging the satellite subnetwork with the Internet TCP/IP-based core network. Results show significant increases in both bandwidth utilization and overall transferred data rate by using the proposed method. Computational time is decreased by a factor of two when compared to existing solutions. And finally, the advantageous interaction with QoS requirements at higher layers is shown with practical examples.
Starting Page	1
Ending Page	7
File Size	255564
Page Count	7
File Format	PDF
ISBN	9781424415120
DOI	10.1109/MILCOM.2007.4455126
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resource management Digital video broadcasting Satellite broadcasting Multimedia communication Channel allocation Bandwidth TV broadcasting Design engineering Systems engineering and theory Electronic mail
Content Type	Text
Resource Type	Article

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