Cross-Layer Design of Dynamic Bandwidth Allocation in DVB-RCS

In this paper, a novel cross-layer framework for optimizing the dynamic bandwidth allocation (DBA) of a digital video broadcast (DVB)-return channel satellite (RCS) system using adaptive coding is proposed. The design of the medium access control (MAC) methods taking into account the adaptive physic...

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Bibliographic Details
Published in:IEEE systems journal 2008-03, Vol.2 (1), p.62-73
Main Authors: Morell, A., Seco-Granados, G., Vazquez-Castro, M.A.
Format: Article
Language:English
Subjects:
Access control
Adaptive coding
Adaptive control
Allocations
Bandwidth
Channel allocation
Cross layer
Cross layer design
Design engineering
digital video broadcast (DVB)-return channel satellite (RCS)
Digital video broadcasting
dynamic bandwidth allocation (DBA)
Dynamical systems
Dynamics
IP (Internet Protocol)
Media Access Protocol
Optimization
optimization algorithms
Physical layer
Programmable control
Quality of service
Satellite broadcasting
Satellite communications
Satellites
Studies
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Summary:In this paper, a novel cross-layer framework for optimizing the dynamic bandwidth allocation (DBA) of a digital video broadcast (DVB)-return channel satellite (RCS) system using adaptive coding is proposed. The design of the medium access control (MAC) methods taking into account the adaptive physical layer and higher layers' quality of service (QoS) requirements is cast as an optimization problem by using the network utility maximization (NUM) framework applied within the satellite subnetwork. Hierarchical and global solving procedures fully compliant with the DVB-RCS standard are proposed. They do not only provide minimum bandwidth guarantees but also maximize fairness. Further, they allow a joint optimization of the time slot size and overall system efficiency while minimizing signalling overhead. A reduced computational complexity algorithm to solve the DBA problem is presented. In practical terms, it increases the number of connections with absolute and relative QoS requirements the system can manage and facilitates the interoperability of the satellite network within an Internet protocol (IP) environment.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2007.914812