A new multistage whitener-based detector for MIMO systems

Sangho Nam, Sungmook Lim, Kyunbyoung Ko, Daesik Hong

Research output: Contribution to journalArticle


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 NT 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 Ci local solutions at the i -th stage of the whitening process. Accordingly, the proposedMWDcan achieve the optimum maximum likelihood detector (MLD)while having a considerably reduced computational complexity compared with the optimal MLD.

Original languageEnglish
Pages (from-to)335-347
Number of pages13
JournalWireless Personal Communications
Issue number2
Publication statusPublished - 2011 Nov 1

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

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