Three-stage iterative detection of a MIMO-aided precoded AMR-WB speech transceiver

N. S. Othman, M. El-Hajjar, O. Alamri, S. X. Ng, L. Hanzo

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

Abstract

A jointly optimised iterative source and channel decoding (ISCD) scheme invoking the Adaptive Multi RateWideband (AMR-WB) speech codec is proposed. More explicitly, the transceiver investigated consists of serially concatenated Recursive Convolutional (RSC) codes, a Unity Rate Code (URC) referred to as a precoder and the AMRWB speech codec, where the resultant bitstream is transmitted using Differential Space-Time Spreading (DSTS) and Sphere Packing (SP) modulation over narrowband temporally correlated Rayleigh fading channels. The convergence behaviour of the advocated scheme is investigated with the aid of Extrinsic Information Transfer (EXIT) charts, which suggests that potential performance improvements can be achieved by combining a serially concatenated precoder with the AMR-WB speech codec. The proposed system exhibits an E b/N0 gain of about 1.5 dB in comparison to the benchmark scheme carrying out iterative source- and channel-decoding as well as DSTS aided SP-demodulation, but dispensing with the precoder, when using I system = 4 system iterations.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
DOIs
Publication statusPublished - 01 Dec 2009
Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
Duration: 20 Sep 200923 Sep 2009

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
CountryUnited States
CityAnchorage, AK
Period20/09/0923/09/09

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Othman, N. S., El-Hajjar, M., Alamri, O., Ng, S. X., & Hanzo, L. (2009). Three-stage iterative detection of a MIMO-aided precoded AMR-WB speech transceiver. In Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall [5378676] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECF.2009.5378676