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Theses

Ordonnancement opportuniste dans les réseaux mobiles de nouvelle génération

Abstract : The scarce resources in wireless systems compounded by their highly variable and error prone propagation characteristics stress the need for efficient resource management. Scheduling is a key tool to allocate efficiently the radio frequency spectrum. While fading effects have long been combated in wireless networks, primarily devoted to voice calls, they are now seen as an opportunity to increase the capacity of novel wireless networks that incorporate data traffic. For data applications, there is a service flexibility afforded by the delay tolerance of elastic traffic and by their ability to adapt their rate to the variable channel quality. Channel-aware scheduling exploit these characteristics by making use of channel state information to ensure that transmission occurs when radio conditions are most favourable. When users have heterogeneous characteristics and quality of service requirements, channel-aware scheduling becomes a challenging task. In this thesis, channel-aware transmission schemes for supporting downlink non-real time services are proposed and analyzed for novel cellular systems. The proposed schemes are designed for providing various QoS requirements for users while increasing the system global throughput.
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https://pastel.archives-ouvertes.fr/pastel-00002059
Contributor : Ecole Télécom Paristech <>
Submitted on : Wednesday, January 17, 2007 - 8:00:00 AM
Last modification on : Friday, July 31, 2020 - 10:44:05 AM
Long-term archiving on: : Saturday, November 26, 2016 - 4:15:17 PM

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  • HAL Id : pastel-00002059, version 1

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Kinda Khawam. Ordonnancement opportuniste dans les réseaux mobiles de nouvelle génération. domain_other. Télécom ParisTech, 2006. English. ⟨pastel-00002059⟩

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