A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems

Sung Hyun Moon, Heunchul Lee, Young Tae Kim, Inkyu Lee

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

6 Citations (Scopus)

Abstract

This paper introduces a new efficient design scheme for spatial multiplexing (SM) systems over closed loop multiple-input multiple-output (MIMO) wireless channels. Extending the orthogonalized spatial multiplexing (OSM) scheme which was developed recently for transmitting two data streams, we propose a new SM scheme where a larger number of data streams can be supported. To achieve this goal, we partition the data streams into several subblocks and execute the block-diagonalization process at the receiver. The proposed scheme still guarantees single-symbol maximum likelihood (ML) detection with small feedback information. Simulation results verify that the proposed scheme achieves a huge performance gain at a bit error rate (BER) of 10-4 over conventional closed-loop schemes based on minimum mean-square error (MSE) or bit error rate (BER) criterion. We also show that an additional 2.5dB gain can be obtained by optimizing the group selection with extra feedback information.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Pages3988-3992
Number of pages5
DOIs
Publication statusPublished - 2008 Sep 12
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 2008 May 192008 May 23

Other

OtherIEEE International Conference on Communications, ICC 2008
CountryChina
CityBeijing
Period08/5/1908/5/23

Fingerprint

Multiplexing
Bit error rate
Feedback
Mean square error
Maximum likelihood

ASJC Scopus subject areas

  • Media Technology

Cite this

Moon, S. H., Lee, H., Kim, Y. T., & Lee, I. (2008). A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems. In IEEE International Conference on Communications (pp. 3988-3992). [4533785] https://doi.org/10.1109/ICC.2008.749

A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems. / Moon, Sung Hyun; Lee, Heunchul; Kim, Young Tae; Lee, Inkyu.

IEEE International Conference on Communications. 2008. p. 3988-3992 4533785.

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

Moon, SH, Lee, H, Kim, YT & Lee, I 2008, A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems. in IEEE International Conference on Communications., 4533785, pp. 3988-3992, IEEE International Conference on Communications, ICC 2008, Beijing, China, 08/5/19. https://doi.org/10.1109/ICC.2008.749
Moon SH, Lee H, Kim YT, Lee I. A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems. In IEEE International Conference on Communications. 2008. p. 3988-3992. 4533785 https://doi.org/10.1109/ICC.2008.749
Moon, Sung Hyun ; Lee, Heunchul ; Kim, Young Tae ; Lee, Inkyu. / A new efficient group-wise spatial multiplexing design for closed-loop MIMO systems. IEEE International Conference on Communications. 2008. pp. 3988-3992
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