Analogue MIMO Detection

  • Robert J. PiechockiEmail author
  • Jose Soler-Garrido
  • Darren McNamara
  • Joe McGeehan
Open Access
Research Article
Part of the following topical collections:
  1. Implementation Aspects and Testbeds for MIMO Systems


In this contribution we propose an analogue receiver that can perform turbo detection in MIMO systems. We present the case for a receiver that is built from nonlinear analogue devices, which perform detection in a "free-flow" network (no notion of iterations). This contribution can be viewed as an extension of analogue turbo decoder concepts to include MIMO detection. These first analogue implementations report reductions of few orders of magnitude in the number of required transistors and in consumed energy, and the same order of improvement in processing speed. It is anticipated that such analogue MIMO decoder could bring about the same advantages, when compared to traditional digital implementations.


Information Technology Quantum Information Processing Speed MIMO System Analogue Implementation 


  1. 1.
    Loeliger H-A, Lustenberger F, Helfenstein M, Tarkoy F: Probability propagation and decoding in analog VLSI. Proceedings of IEEE International Symposium on Information Theory (ISIT '98), August 1998, Cambridge, Mass, USA 146–146.Google Scholar
  2. 2.
    Hagenauer J, Winklhofer M: The analog decoder. Proceedings of IEEE International Symposium on Information Theory (ISIT '98), August 1998, Cambridge, Mass, USA 145–145.Google Scholar
  3. 3.
    Lustenberger FOn the design of analog iterative VLSI decoders, vol. 2 of Series in Signal and Information Processing, Hartung-Gorre, Konstanz, Germany, 2000, Ph.D. dissertationGoogle Scholar
  4. 4.
    Xotta A, Vogrig D, Gerosa A, et al.: An all-analog CMOS implementation of a turbo decoder for hard-disk drive read channels. Proceedings of IEEE International Symposium on Circuits and Systems (ISCAS '02), May 2002, Scottsdale, Ariz, USA 5: 69–72.Google Scholar
  5. 5.
    Mondragon-Torres AF, Sanchez-Sinencio E, Narayanan KR: Floating-gate analog implementation of the additive soft-input soft-output decoding algorithm. IEEE Transactions on Circuits and Systems—Part I: Fundamental Theory and Applications 2003, 50(10):1256–1269. 10.1109/TCSI.2003.817763CrossRefGoogle Scholar
  6. 6.
    Gaudet VC, Gulak PG:A 13.3-Mb/s 0.35-Open image in new windowm CMOS analog turbo decoder IC with a configurable interleaver. IEEE Journal of Solid-State Circuits 2003, 38(11):2010–2015. 10.1109/JSSC.2003.818134CrossRefGoogle Scholar
  7. 7.
    Winstead C, Dai J, Yu S, Myers C, Harrison RR, Schlegel C: CMOS analog MAP decoder for (8,4) Hamming code. IEEE Journal of Solid-State Circuits 2004, 39(1):122–131. 10.1109/JSSC.2003.820845CrossRefGoogle Scholar
  8. 8.
    Mead C: Analog VLSI and Neural Systems. Addison-Wesley, Reading, Mass, USA; 1989.zbMATHGoogle Scholar
  9. 9.
    Herken R (Ed): The Universal Turing Machine: A Half-Century Survey. Oxford University Press, Oxford, UK; 1988.zbMATHGoogle Scholar
  10. 10.
    Hagenauer J, Offer E, Measson C, Moerz M: Decoding and equalization with analog non-linear networks. European Transactions on Telecommunications 1999, 10: 659–680. 10.1002/ett.4460100610CrossRefGoogle Scholar
  11. 11.
    Paulraj A, Nabar R, Gore D: Introduction to Space-Time Wireless Communications. Cambridge University Press, Cambridge, UK; 2003.Google Scholar
  12. 12.
    Haykin S: Communication Systems. 4th edition. John Wiley & Sons, Chichester, West Sussex, UK; 2001.Google Scholar
  13. 13.
    Pena-Finol JS, Connelly JA: A MOS four-quadrant analog multiplier using the quarter-square technique. IEEE Journal of Solid-State Circuits 1987, 22(6):1064–1073. 10.1109/JSSC.1987.1052856CrossRefGoogle Scholar

Copyright information

© Piechocki et al. 2006

Authors and Affiliations

  • Robert J. Piechocki
    • 1
    Email author
  • Jose Soler-Garrido
    • 1
  • Darren McNamara
    • 2
  • Joe McGeehan
    • 1
    • 2
  1. 1.Centre for Communications ResearchUniversity of BristolBristolUnited Kingdom
  2. 2.Telecommunications Research LaboratoryToshiba Research Europe LtdBristolUnited Kingdom

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