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QOS considerations for future military satcom networks with link layer dynamic resource allocation
Author(s) -
NarulaTam Aradhana,
Wysocarski Jeff,
Yao Huan,
Wang MuCheng,
Macdonald Thomas,
Huang Orton,
Pandya Julee
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.852
Subject(s) - computer science , quality of service , computer network , telecommunications link , network packet , resource allocation , scheduling (production processes) , physical layer , link layer , distributed computing , wireless , telecommunications , operations management , economics
To efficiently utilize limited RF resources, future military packet‐switched satellite networks will dynamically allocate resources on the uplink and downlink. Designing the resource allocation algorithms to maximize link layer efficiency is insufficient. The resource allocation algorithms must work cooperatively with the network layer and transport layer to optimize network layer performance and provide quality of service (QoS) to applications and users. Several mechanisms for facilitating this required cooperation between the layers are presented. The individual roles and actions of the layers as well as their interaction are defined. QoS schedulers that continue to provide service differentiation in the presence of link variations are illustrated. Downlink scheduling architectures that provide terminal QoS guarantees are demonstrated. Finally, the interaction between TCP and the dynamic resource allocation algorithms is investigated, leading to suggested modifications of either the resource allocation algorithms, the TCP protocol, or both. Copyright © 2006 John Wiley & Sons, Ltd.