Forward capacity of space-time turbo coded CDMA system with turbo reception

J Shen, A G Burr, S Hirst

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper we consider a multiple-input multiple-output (MIMO) downlink multi-cell CDMA system employing BLAST space-time Turbo codes (STTuC) over the frequency-selective fading channel. The system performance is measured in terms of system spectral efficiency (bits/s/Hz/cell). A space-time RAKE receiver and a space-time Turbo receiver are proposed. The Turbo receiver is based on space-time Parallel Interference Cancellation (ST-PIC), which can reconstruct and subtract all the types of inferference in the multipath MIMO CDMA channel at the same time. In each iteration,the soft output of the spacetime Turbo decoder is fed back to improve the PIC'S performance. The simulation shows that the Turbo PIC receiver enhances the STTuC CDMA system spectral efficiency by 50% over, the RAKE receiver. This result suggests that, with the Turbo reception technique, the MIMO CDMA system can serve much more users in a cell or provide much higher rate downlink packed data service to one user.

Original languageEnglish
Title of host publicationPIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003
EditorsK Gong, ZH Niu
Place of PublicationBEIJING
PublisherPUBLISHING HOUSE ELECTRONICS INDUSTRY
Pages1390-1394
Number of pages5
ISBN (Print)7-5053-5066-8
Publication statusPublished - 2003
Event14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - BEIJING
Duration: 7 Sept 200310 Sept 2003

Conference

Conference14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
CityBEIJING
Period7/09/0310/09/03

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