Achievable data rates for two transmit antenna broadcast channels with WCDMA HSDPA feedback information

G Corral-Briones*, AA Dowhuszko, Jyri Hämäläinen, R Wichman

*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

Previous works have shown that in case of multiple transmit antenna broadcast channels, the total system throughput can be greatly improved by combining spatial prefiltering (SP) with multiuser scheduling (MS) [1], [2]. However, most of the studies assume full channel state information at the transmitter (CSIT). In this paper, we study the achievable data rates within the current WCDMA HSDPA specification and present different schemes based on the WCDMA closed-loop transmit diversity (CLTD) modes. Although the achievable throughput is interference limited at high SNR due to partial CSIT, we show that at moderate power regimes a significant performance gain can be achieved by the proper combination of SP and MS concepts, compared to the systems that only transmit to the user with the best channel condition in each transmission time interval (TTI).

Original languageEnglish
Title of host publicationICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5
PublisherIEEE
Pages2722-2727
Number of pages6
ISBN (Print)0-7803-8938-7
DOIs
Publication statusPublished - 2005
MoE publication typeA4 Article in a conference publication
EventIEEE International Conference on Communications - Seoul, Korea, Republic of
Duration: 16 May 200520 May 2005

Publication series

NameIEEE International Conference on Communications
PublisherIEEE
ISSN (Print)1550-3607

Conference

ConferenceIEEE International Conference on Communications
Abbreviated titleICC
CountryKorea, Republic of
CitySeoul
Period16/05/200520/05/2005

Keywords

  • DIRTY PAPER
  • CAPACITY

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