Efficient Soft-Output Demapping Method for MIMO-OFDM WLAN System

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 164)

Abstract

In this paper, a simplified soft-output demapping method is proposed for a coded MIMO-OFDM Wireless LAN system, only requiring 3-bit soft information. In particular, we apply bit-rounding and effective-bit threshold adjustment techniques, in order to effectively extract 3-bit soft information without performance degradation.

Keywords

Multiple-input multiple-output (MIMO) Orthogonal frequency division multiplexing (OFDM) Wireless local area network (WLAN) Soft-output demapping 

References

  1. 1.
    IEEE Std 802.11a: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High-Speed Physical Layer in 5 GHz Band. Sept. 1999Google Scholar
  2. 2.
    Rosdahl, J.: Draft PAR for high throughput study group. In: IEEE 802.11 document, doc. no. 11-02-0798-07-htsg, Nov. 2002Google Scholar
  3. 3.
    Zelst, A.V.: Space division multiplexing algorithms. In: Proceeding 10th Mediterranean Electrotechnical Conference, vol. 3, (2000)Google Scholar
  4. 4.
    Artes, H., Seethaler, D., Hlawatsch, F.: Efficient detection algorithms for mimo channels: a geometrical approach to approximate ML detection. IEEE Trans. Signal Process. 51, 2808–2820 (2003)MathSciNetCrossRefGoogle Scholar
  5. 5.
    Muller-Weinfurtner, S.H.: Coding approaches for multiple antenna transmission in fast fading and OFDM. IEEE Trans. Signal Process. 50, 2442–2450 (2002)CrossRefGoogle Scholar
  6. 6.
    Pyndiah, R., Picart, A., Glavieux, A.: Performance of block turbo coded 16-QAM and 64-QAM modulations. In: Proceeding IEEE GLOBECOM 1995, pp. 1039–1043 (1995)Google Scholar
  7. 7.
    Tosato, F., Bisaglia, P.: Simplified soft-output demapper for binary interleaved COFDM with application to HIPERLAN/2. In: Proceeding IEEE International Conference on Community, (2002)Google Scholar
  8. 8.
    Stephens, A. P.: IEEE 802.11 TGn comparison criteria. In: IEEE 802.11 document, doc. no.11-03-0814-31-000n, (2004)Google Scholar

Copyright information

© Springer Science+Business Media Dortdrecht 2012

Authors and Affiliations

  1. 1.Super-Speed Wireless Communcation Research Team, ETRIDaejeonKorea
  2. 2.Department of Information and Communications EngineeringHansung UniversitySeoulKorea

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