A new reduced complexity ML detection scheme for MIMO systems

Jin Sung Kim, Sung Hyun Moon, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

For multiple-input multiple-output (MIMO) systems, the optimum maximum likelihood (ML) detection requires tremendous complexity as the number of antennas or modulation level increases. This paper proposes a new algorithm which attains the ML performance with significantly reduced complexity. Based on the minimum mean square error (MMSE) criterion, the proposed scheme reduces the search space by excluding unreliable candidate symbols in data streams. Utilizing the probability metric which evaluates the reliability with the normalized likelihood functions of each symbol candidate, near optimal ML detection is made possible. A threshold parameter is introduced to balance a tradeoff between complexity and performance. Besides, we propose an efficient way of generating the log likelihood ratio (LLR) values which can be used for coded systems.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
DOIs
Publication statusPublished - 2009 Nov 19
Event2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
Duration: 2009 Jun 142009 Jun 18

Other

Other2009 IEEE International Conference on Communications, ICC 2009
CountryGermany
CityDresden
Period09/6/1409/6/18

Fingerprint

Maximum likelihood
Mean square error
Modulation
Antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Kim, J. S., Moon, S. H., & Lee, I. (2009). A new reduced complexity ML detection scheme for MIMO systems. In IEEE International Conference on Communications [5198645] https://doi.org/10.1109/ICC.2009.5198645

A new reduced complexity ML detection scheme for MIMO systems. / Kim, Jin Sung; Moon, Sung Hyun; Lee, Inkyu.

IEEE International Conference on Communications. 2009. 5198645.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, JS, Moon, SH & Lee, I 2009, A new reduced complexity ML detection scheme for MIMO systems. in IEEE International Conference on Communications., 5198645, 2009 IEEE International Conference on Communications, ICC 2009, Dresden, Germany, 09/6/14. https://doi.org/10.1109/ICC.2009.5198645
Kim JS, Moon SH, Lee I. A new reduced complexity ML detection scheme for MIMO systems. In IEEE International Conference on Communications. 2009. 5198645 https://doi.org/10.1109/ICC.2009.5198645
Kim, Jin Sung ; Moon, Sung Hyun ; Lee, Inkyu. / A new reduced complexity ML detection scheme for MIMO systems. IEEE International Conference on Communications. 2009.
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