Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink

Heunchul Lee, Kwangwon Lee, Bertrand M. Hochwald, Inkyu Lee

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

15 Citations (Scopus)

Abstract

Channel inversion is one of the simplest techniques for multiuser downlink systems with single-antenna users. In this paper, we extend the regularized channel inversion technique developed for the single-antenna user case to multiuser multiple-input multiple-output (MIMO) channels with multiple-antenna users. We first employ the multiuser preprocessing to project the multiuser signals near the null space of the unintended users based on the MMSE criterion, and then the single-user preprocessing is applied to the decomposed MIMO interference channels. In order to reduce the complexity, we focus on non-iterative solutions for the multiuser transmit beamforming and use a linear receiver based on an MMSE criterion. Simulation results show that the proposed scheme outperforms existing joint iterative algorithms in most multiuser configurations.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Pages3501-3505
Number of pages5
DOIs
Publication statusPublished - 2008 Sep 12
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 2008 May 192008 May 23

Other

OtherIEEE International Conference on Communications, ICC 2008
CountryChina
CityBeijing
Period08/5/1908/5/23

Fingerprint

Antennas
Beamforming

ASJC Scopus subject areas

  • Media Technology

Cite this

Lee, H., Lee, K., Hochwald, B. M., & Lee, I. (2008). Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink. In IEEE International Conference on Communications (pp. 3501-3505). [4533694] https://doi.org/10.1109/ICC.2008.658

Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink. / Lee, Heunchul; Lee, Kwangwon; Hochwald, Bertrand M.; Lee, Inkyu.

IEEE International Conference on Communications. 2008. p. 3501-3505 4533694.

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

Lee, H, Lee, K, Hochwald, BM & Lee, I 2008, Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink. in IEEE International Conference on Communications., 4533694, pp. 3501-3505, IEEE International Conference on Communications, ICC 2008, Beijing, China, 08/5/19. https://doi.org/10.1109/ICC.2008.658
Lee H, Lee K, Hochwald BM, Lee I. Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink. In IEEE International Conference on Communications. 2008. p. 3501-3505. 4533694 https://doi.org/10.1109/ICC.2008.658
Lee, Heunchul ; Lee, Kwangwon ; Hochwald, Bertrand M. ; Lee, Inkyu. / Regularized channel inversion for multiple-antenna users in multiuser MIMO downlink. IEEE International Conference on Communications. 2008. pp. 3501-3505
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