Premium
Networking with multi‐service GEO satellites: cross‐layer approaches for bandwidth allocation
Author(s) -
Celandroni Nedo,
Davoli Franco,
Ferro Erina,
Gotta Alberto
Publication year - 2006
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.850
Subject(s) - computer science , computer network , bandwidth (computing) , dynamic bandwidth allocation , bandwidth allocation , fading , throughput , physical layer , channel allocation schemes , link adaptation , channel (broadcasting) , wireless , telecommunications
Cross‐layer Radio Resource Management (CL‐RRM) has been recently investigated by quite a few research groups in wireless communications. In the specific satellite‐networking environment, the paper presents an overview of different CL‐RRM techniques devoted to dynamic bandwidth allocation, whose interactions span the physical, data link, network and transport layers, in various combinations. A multi‐service setting is considered, in the presence of variations in both traffic and channel conditions. Regarding the latter, bit and coding rate adaptation are adopted as fade countermeasure, and their effect on the higher layers is modelled as a bandwidth reduction. Traffic models and methodologies for dynamic bandwidth allocation and performance optimization are discussed. Numerical examples are presented to highlight throughput/fairness trade‐offs for long‐lived TCP connections that share multiple channels with different fading depth. Copyright © 2006 John Wiley & Sons, Ltd.