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  • Research Article
  • Open Access

Optimisation of Downlink Resource Allocation Algorithms for UMTS Networks

EURASIP Journal on Wireless Communications and Networking20052005:132194

  • Received: 22 October 2004
  • Published:


Recent interest in resource allocation algorithms for multiservice CDMA networks has focused on algorithms optimising the aggregate uplink or downlink throughput, sum of all individual throughputs. For a given set of real-time (RT) and non-real-time (NRT) communications services, an upper bound of the uplink throughput has recently been obtained. In this paper, we give the upper bound for the downlink throughput and we introduce two downlink algorithms maximising either downlink throughput, or maximising the number of users connected to the system, when orthogonal variable spreading factors (OVSFs) are limited to the wideband code division multiple access (WCDMA) set.


  • resource management
  • capacity optimisation
  • code division multiple access
  • OVSF
  • multiservices

Authors’ Affiliations

Conservatoire National des Arts et Métiers (CNAM), 292 rue Saint Martin, Paris, 75003, France
Institut Supérieur d'Electronique de Paris (ISEP), 28 rue Notre Dame des Champs, 75006, France


© Michel Terré et al. 2005

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.