A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm

Hyounkuk KIM; Kihwan JEON; Joonhyuk KANG; Hyuncheol PARK

doi:10.1093/ietcom/e90-b.12.3665

A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm

Hyounkuk KIM, Kihwan JEON, Joonhyuk KANG, Hyuncheol PARK

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This letter presents a new vertical Bell Labs layered space-time (V-BLAST) transmission scheme for developing low-complexity tree searching in the QRD-M algorithm. In the new V-BLAST system, we assign modulation scheme in ascending order from top to bottom tree branches. The modulation set to be assigned is decided by two criteria: minimum performance loss and maximum complexity reduction. We also propose an open-loop power allocation algorithm to surmount the performance loss. Numerical results show that the proposed V-BLAST transmission approach can significantly reduce the computational loads of the QRD-M algorithm with a slight performance degradation.

Publication: IEICE TRANSACTIONS on Communications Vol.E90-B No.12 pp.3665-3669

Publication Date: 2007/12/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e90-b.12.3665

Type of Manuscript: LETTER

Category: Transmission Systems and Transmission Equipment for Communications

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Hyounkuk KIM, Kihwan JEON, Joonhyuk KANG, Hyuncheol PARK, "A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm" in IEICE TRANSACTIONS on Communications, vol. E90-B, no. 12, pp. 3665-3669, December 2007, doi: 10.1093/ietcom/e90-b.12.3665.
Abstract: This letter presents a new vertical Bell Labs layered space-time (V-BLAST) transmission scheme for developing low-complexity tree searching in the QRD-M algorithm. In the new V-BLAST system, we assign modulation scheme in ascending order from top to bottom tree branches. The modulation set to be assigned is decided by two criteria: minimum performance loss and maximum complexity reduction. We also propose an open-loop power allocation algorithm to surmount the performance loss. Numerical results show that the proposed V-BLAST transmission approach can significantly reduce the computational loads of the QRD-M algorithm with a slight performance degradation.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e90-b.12.3665/_p

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@ARTICLE{e90-b_12_3665,
author={Hyounkuk KIM, Kihwan JEON, Joonhyuk KANG, Hyuncheol PARK, },
journal={IEICE TRANSACTIONS on Communications},
title={A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm},
year={2007},
volume={E90-B},
number={12},
pages={3665-3669},
abstract={This letter presents a new vertical Bell Labs layered space-time (V-BLAST) transmission scheme for developing low-complexity tree searching in the QRD-M algorithm. In the new V-BLAST system, we assign modulation scheme in ascending order from top to bottom tree branches. The modulation set to be assigned is decided by two criteria: minimum performance loss and maximum complexity reduction. We also propose an open-loop power allocation algorithm to surmount the performance loss. Numerical results show that the proposed V-BLAST transmission approach can significantly reduce the computational loads of the QRD-M algorithm with a slight performance degradation.},
keywords={},
doi={10.1093/ietcom/e90-b.12.3665},
ISSN={1745-1345},
month={December},}

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TY - JOUR
TI - A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm
T2 - IEICE TRANSACTIONS on Communications
SP - 3665
EP - 3669
AU - Hyounkuk KIM
AU - Kihwan JEON
AU - Joonhyuk KANG
AU - Hyuncheol PARK
PY - 2007
DO - 10.1093/ietcom/e90-b.12.3665
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E90-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2007
AB - This letter presents a new vertical Bell Labs layered space-time (V-BLAST) transmission scheme for developing low-complexity tree searching in the QRD-M algorithm. In the new V-BLAST system, we assign modulation scheme in ascending order from top to bottom tree branches. The modulation set to be assigned is decided by two criteria: minimum performance loss and maximum complexity reduction. We also propose an open-loop power allocation algorithm to surmount the performance loss. Numerical results show that the proposed V-BLAST transmission approach can significantly reduce the computational loads of the QRD-M algorithm with a slight performance degradation.
ER -