Blockwise uniform channel decomposition for MIMO systems

Kyoung Jae Lee, Bertrand M. Hochwald, Inkyu Lee

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

1 Citation (Scopus)

Abstract

In this paper, we investigate spatial multiplexing schemes for closed-loop multiple-input multiple-output (MIMO) systems. The performance of the singular value decomposition (SVD) scheme is limited by the smallest singular value. When all the subchannels are utilized, uniform channel decomposition (UCD) was recently proposed to obtain a performance gain by making subchannels have equal gains. The UCD requires a successive interference cancelation (SIC) receiver, and thus it suffers from the error propagation inherent in the SIC receiver. We propose the blockwise UCD (BL-UCD) scheme which increases the minimum subchannel gain by pairing two singular values. The proposed scheme allows single-symbol decodable maximum-likelihood detection (MLD) instead of the SIC receiver. The simulation results demonstrate that the proposed BL-UCD scheme outperforms the SVD scheme and the conventional UCD at full spatial multiplexing for four transmit antennas and four receive antennas by 8dB and 5dB, respectively.

Original languageEnglish
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
Pages3154-3158
Number of pages5
DOIs
Publication statusPublished - 2007 Dec 1
Event50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007 - Washington, DC, United States
Duration: 2007 Nov 262007 Nov 30

Other

Other50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
CountryUnited States
CityWashington, DC
Period07/11/2607/11/30

Fingerprint

Singular value decomposition
Multiplexing
Antennas
Maximum likelihood

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, K. J., Hochwald, B. M., & Lee, I. (2007). Blockwise uniform channel decomposition for MIMO systems. In GLOBECOM - IEEE Global Telecommunications Conference (pp. 3154-3158). [4411507] https://doi.org/10.1109/GLOCOM.2007.597

Blockwise uniform channel decomposition for MIMO systems. / Lee, Kyoung Jae; Hochwald, Bertrand M.; Lee, Inkyu.

GLOBECOM - IEEE Global Telecommunications Conference. 2007. p. 3154-3158 4411507.

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

Lee, KJ, Hochwald, BM & Lee, I 2007, Blockwise uniform channel decomposition for MIMO systems. in GLOBECOM - IEEE Global Telecommunications Conference., 4411507, pp. 3154-3158, 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007, Washington, DC, United States, 07/11/26. https://doi.org/10.1109/GLOCOM.2007.597
Lee KJ, Hochwald BM, Lee I. Blockwise uniform channel decomposition for MIMO systems. In GLOBECOM - IEEE Global Telecommunications Conference. 2007. p. 3154-3158. 4411507 https://doi.org/10.1109/GLOCOM.2007.597
Lee, Kyoung Jae ; Hochwald, Bertrand M. ; Lee, Inkyu. / Blockwise uniform channel decomposition for MIMO systems. GLOBECOM - IEEE Global Telecommunications Conference. 2007. pp. 3154-3158
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