A new two-step precoding based on rotation transformations in closed-loop MIMO systems

Heunchul Lee, Seokhwan Park, Inkyu Lee

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

Abstract

In this paper, we propose a two-step precoding approach for multiple-input multiple-output (MIMO) systems by dividing the precoding process into two steps: spatial multiplexing transformation which establishes orthogonalized subchannels with the same quality and beamforming transformation which achieves diversity gain. In the proposed precoding method, we improve the system performance by maximizing the minimum Euclidean distance between the received signals. Compared with the optimal singular value decomposition based precoding methods, the proposed approach significantly reduces the processing complexity as well as the feedback overhead since precoding techniques are based on simple rotation transformations.

Original languageEnglish
Title of host publicationThe 68th IEEE Vehicular Technology Conference, VTC 2008-Fall
DOIs
Publication statusPublished - 2008
Event68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference - Calgary, AB, Canada
Duration: 2008 Sep 212008 Sep 24

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference
CountryCanada
CityCalgary, AB
Period08/9/2108/9/24

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Lee, H., Park, S., & Lee, I. (2008). A new two-step precoding based on rotation transformations in closed-loop MIMO systems. In The 68th IEEE Vehicular Technology Conference, VTC 2008-Fall [4656947] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECF.2008.115