Power allocation algorithms for ZF-THP sum rate optimization in multi-user multi-antenna systems

Wookbong Lee, Changick Song, Sangrim Lee, Kilbom Lee, Jin Sam Kwak, Inkyu Lee

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

1 Citation (Scopus)

Abstract

In this paper, we study a power allocation technique for Tomlinson-Harashima precoding (THP) in multi- user multiple input single output (MISO) downlink systems. In contrast to previous approaches, a mutual information based method is exploited for maximizing the sum rate of zero-forcing THP systems. Then, we propose a simple power allocation algorithm which assigns proper power level for modulo operated users. Simulation results show that the proposed scheme outperforms a conventional water-filling method, and achieves near optimal performance with much reduced complexity.

Original languageEnglish
Title of host publicationIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
DOIs
Publication statusPublished - 2012
EventIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan
Duration: 2012 May 62012 Jun 9

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

OtherIEEE 75th Vehicular Technology Conference, VTC Spring 2012
CountryJapan
CityYokohama
Period12/5/612/6/9

ASJC Scopus subject areas

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

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  • Cite this

    Lee, W., Song, C., Lee, S., Lee, K., Kwak, J. S., & Lee, I. (2012). Power allocation algorithms for ZF-THP sum rate optimization in multi-user multi-antenna systems. In IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings [6240084] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2012.6240084