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A scheduling technique for increasing downlink throughput in wideband CDMA systems

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3 Author(s)
Kahn, S. ; Commun. & Signal Process. Res. Group, Imperial Coll., London, UK ; Gurcan, M.K. ; Oyefuga, O.O.

In wideband CDMA systems, downlink capacity is limited by distortion in orthogonal codes, causing multiple access interference. This paper presents a multi-frame scheduling method to reduce the number of simultaneous transmissions, thereby increasing capacity. To avoid wasting resources where there is insufficient demand, a buffer management tool is proposed to match the delivered rate to the arrival rate. Simulation results suggest that this gives up to 55% improvement in delivered bit-rate over a single-frame approach.

Published in:

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE  (Volume:1 )

Date of Conference:

1-5 Dec. 2003