A vector perturbation technique based on eigenvalue normalization for multi-user MIMO downlink

Hyungjoon Song, Dongyoung Kwon, Sungmook Lim, Sungsoo Park, Daesik Hong

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

Abstract

We investigate a non-linear precoding techniques for multi-user multiple-input multiple-output (MU-MIMO) downlink. When assuming full knowledge of the channel state information at the transmitter, a vector perturbation (VP) is a promising precoding scheme that approaches sum capacity and has simple receiver. However, its encoding is nondeterministic polynomial time (NP)-hard problem. In the MU-MIMO downlink, this encoding problem becomes harder because the proper user selection must be considered. In this paper, we propose a new vector perturbation scheme based on eigenvalue normalization (VPEVN), which converts the NP-hard problem into a channel condition-based finite integer problem, resulting in a reduction of encoding complexity. In addition, it can select a good user set by simple maximum norm criterion owing to its orthogonalization effect.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
DOIs
Publication statusPublished - 2009
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 2009 Apr 262009 Apr 29

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

OtherVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
CountrySpain
CityBarcelona
Period09/4/2609/4/29

All Science Journal Classification (ASJC) codes

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

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    Song, H., Kwon, D., Lim, S., Park, S., & Hong, D. (2009). A vector perturbation technique based on eigenvalue normalization for multi-user MIMO downlink. In VTC Spring 2009 - IEEE 69th Vehicular Technology Conference [5073352] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2009.5073352