A turbo rake receiver for space-time block coded frequency selective CDMA systems

Sudharman K. Jayaweera, H. Vincent Poor

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

3 Scopus citations

Abstract

A turbo receiver that combines the concepts of RAKE combining, turbo detection and space-time block coding is proposed for multipath CDMA systems. The proposed system combines the decorrelating RAKE (DRAKE) receiver developed for frequency selective CDMA channels with the iterative soft interference cancellation and Minimum Mean Square Error (MMSE) filtering proposed for convolutionally coded CDMA, and extends these ideas to the case where the system also employs space-time block coding (STBC) in addition to the convolutional channel coding. A novelty of the new receiver is that the space-time decoding is performed along each resolvable multipath direction. Simulation results show that, while in some cases a non-iterative space-time coded system may have inferior performance compared to a system without space-time coding in a multipath channel, the proposed iterative scheme always significantly outperforms systems without spacetime coding even with only two iterations.

Original languageEnglish (US)
Title of host publication2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
PublisherIEEE Computer Society
Pages456-460
Number of pages5
ISBN (Electronic)0780375513
DOIs
StatePublished - Jan 1 2002
EventIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002 - Rosslyn, United States
Duration: Aug 4 2002Aug 6 2002

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2002-January
ISSN (Electronic)2151-870X

Other

OtherIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
CountryUnited States
CityRosslyn
Period8/4/028/6/02

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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    Jayaweera, S. K., & Poor, H. V. (2002). A turbo rake receiver for space-time block coded frequency selective CDMA systems. In 2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002 (pp. 456-460). [1191081] (Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop; Vol. 2002-January). IEEE Computer Society. https://doi.org/10.1109/SAM.2002.1191081