Research Article
Optimisation of Downlink Resource Allocation Algorithms for UMTS Networks
1 Conservatoire National des Arts et Métiers (CNAM), 292 rue Saint Martin, Paris 75003, France
2 Institut Supérieur d'Electronique de Paris (ISEP), 28 rue Notre Dame des Champs, 75006, France
EURASIP Journal on Wireless Communications and Networking 2005, 2005:132194 doi:10.1155/WCN.2005.573
Published: 8 September 2005Abstract
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.
