EM-based blind demodulation of synchronous CDMA

Yingwei Yao, H. Vincent Poor

Research output: Contribution to conferencePaper

4 Scopus citations

Abstract

The problem of blind detection in a synchronous CDMA system when there is no knowledge of the users' spreading sequences is considered. An EM-based algorithm which exploits the finite alphabet property of the digital communications source is proposed. Simulations show that this approach, which makes use of knowledge of the subspace spanned by the signaling multiplex, achieves the Cramer-Rao lower bound. The issues of subspace estimation and timing acquisition are also considered.

Original languageEnglish (US)
Pages738-742
Number of pages5
StatePublished - Dec 11 2000
Event2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000) - Parsippany, NJ, USA
Duration: Sep 6 2000Sep 8 2000

Other

Other2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000)
CityParsippany, NJ, USA
Period9/6/009/8/00

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Control and Systems Engineering

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  • Cite this

    Yao, Y., & Poor, H. V. (2000). EM-based blind demodulation of synchronous CDMA. 738-742. Paper presented at 2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000), Parsippany, NJ, USA, .