Cross-layer scheduling strategy for UMTS downlink enhancement

Authors:
R. Ferrus;L. Alonso;A. Umbert;X. Reves;J. Perez-Romero;F. Casadevall
Affiliations:
Catalonia Tech. Univ., Spain;-;-;-;-;-
Venue:
IEEE Communications Magazine
Year:
2005

Citing 0
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Abstract

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.