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This article describes the benefits of including cross-layer information in the scheduling mechanism of a UMTS downlink channel. In particular, the information obtained from the fast power control algorithm is used to properly schedule transmissions. A prioritization function that exploits the short...

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Bibliographic Details
Main Authors: Todorov Trifonov, Trifon, Rodríguez Martínez, Ángel, Servera, F, Marsal, L F, Pallarès Marzal, Josep, Alcubilla González, Ramón
Format: Text Resource
Language:English
Subjects:
3G mobile communication
Channel capacity
Diversity reception
Enginyeria de la telecomunicació
Fotònica
Multiuser channels
Photonics
Power control
Radio links
Scheduling
Telecommunication control
Telecommunication network management
Telecomunicació òptica
Àrees temàtiques de la UPC
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Summary:This article describes the benefits of including cross-layer information in the scheduling mechanism of a UMTS downlink channel. In particular, the information obtained from the fast power control algorithm is used to properly schedule transmissions. A prioritization function that exploits the short-term channel variations is proposed. This strategy is shown to be a feasible approach to improve system performance in terms of capacity and delay. This enhancement is obtained as a benefit of intrinsic multi-user diversity. The proposal is applicable within the current UMTS radio resource management framework. Peer Reviewed
ISSN:0031-8965
DOI:10.1109/MCOM.2005.1452831