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 Vehicular Technology Conference
DOIs
Publication statusPublished - 2012 Aug 20
EventIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan
Duration: 2012 May 62012 Jun 9

Other

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

Fingerprint

Precoding
Power Allocation
Antenna
Antennas
Zero-forcing
Optimization
Mutual Information
Assign
Modulo
Water
Output
Simulation

ASJC Scopus subject areas

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

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 Vehicular Technology Conference [6240084] https://doi.org/10.1109/VETECS.2012.6240084

Power allocation algorithms for ZF-THP sum rate optimization in multi-user multi-antenna systems. / Lee, Wookbong; Song, Changick; Lee, Sangrim; Lee, Kilbom; Kwak, Jin Sam; Lee, Inkyu.

IEEE Vehicular Technology Conference. 2012. 6240084.

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

Lee, W, Song, C, Lee, S, Lee, K, Kwak, JS & Lee, I 2012, Power allocation algorithms for ZF-THP sum rate optimization in multi-user multi-antenna systems. in IEEE Vehicular Technology Conference., 6240084, IEEE 75th Vehicular Technology Conference, VTC Spring 2012, Yokohama, Japan, 12/5/6. https://doi.org/10.1109/VETECS.2012.6240084
Lee, Wookbong ; Song, Changick ; Lee, Sangrim ; Lee, Kilbom ; Kwak, Jin Sam ; Lee, Inkyu. / Power allocation algorithms for ZF-THP sum rate optimization in multi-user multi-antenna systems. IEEE Vehicular Technology Conference. 2012.
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