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A New Multistage Whitener-Based Detector for MIMO Systems

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Abstract

We propose a new multistage whitener-based detector (MWD) to guarantee low complexity and high performance for multiple-input multiple-output systems. The proposed MWD reduces complexity by detecting two out of N T transmitted symbols in each stage of the whitening process. Furthermore, it can enhance performance by adopting a norm-based selection criterion that considers the instantaneous channel state and interference cancellation using C i local solutions at the i-th stage of the whitening process. Accordingly, the proposed MWD can achieve the optimum maximum likelihood detector (MLD) while having a considerably reduced computational complexity compared with the optimal MLD.

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Authors and Affiliations

  1. Information and Telecommunication Laboratory, School of  Electrical and Electronic Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea

    Sangho Nam, Sungmook Lim & Daesik Hong

  2. Department of Control & Instrumentation Engineering, Chungju National University, 72 Daehak-ro, Chungju-si, Chungbuk, 380-702, Korea

    Kyunbyoung Ko

Authors
  1. Sangho Nam
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  2. Sungmook Lim
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  3. Kyunbyoung Ko
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  4. Daesik Hong
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Correspondence to Sangho Nam.

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Nam, S., Lim, S., Ko, K. et al. A New Multistage Whitener-Based Detector for MIMO Systems. Wireless Pers Commun 61, 335–347 (2011). https://doi.org/10.1007/s11277-010-0026-4

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  • DOI: https://doi.org/10.1007/s11277-010-0026-4

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