Downlink beamforming for TD/CDMA multipath channels

Martin Schubert, Holger Boche

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations


Downlink beamforming has been proposed for high-capacity and spectrally-efficient DS-CDMA wireless systems. It mitigates the effects of multiple access interference, self interference and inter-cell interference. We propose a new direction-based downlink beamforming algorithm for frequency selective TD/CDMA multipath channels. It minimises the radiated array power while suppressing dominant interferers. By considering the directivity of the beam pattern, improved robustness and good spatial filtering properties are achieved. This approach also supports path diversity, assuming that a conventional RAKE is deployed at the mobile. Moreover, it can easily be expanded to facilitate space division multiple access (SDMA).

Original languageEnglish
Title of host publicationCommunicationsSensor Array and Multichannel Signal Processing
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)0780362934
StatePublished - 2000
Externally publishedYes
Event25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000 - Istanbul, Turkey
Duration: 5 Jun 20009 Jun 2000

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149


Conference25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000


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