A Comparative Study of List Sphere Decoders for MIMO Systems

  • Pham, Van-Su (IT Convergence Campus, Korea Advanced Institute of Science and Technology) ;
  • Yoon, Giwan (IT Convergence Campus, Korea Advanced Institute of Science and Technology)
  • Published : 2009.05.29

Abstract

In this paper, we investigated the list sphere decoders (LSD) for multiple-input multiple-output (MIMO) systems. We showed that the ordering procedures play an important role in LSD in order to achieve the low complexity without degrading the bit-error-rate (BER) performance. Then, we proposed a novel ordering algorithm for the LSD which uses a look-up table and simply comparative operations. Comparative results in terms of BER performance and computational complexity are provided through computer simulations.

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