Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization

Jin Sung Kim, Sung Hyun Moon, Inkyu Lee

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

5 Citations (Scopus)

Abstract

Recently linear processing strategies have been developed to approach the optimum performance of dirty paper coding with low complexity in multiuser multiple-input multiple-output (MIMO) downlink systems. In this paper, we propose a new linear coordinated beamforming algorithm which is applicable to the systems with an arbitrary number of antennas and users. Unlike other conventional methods, our scheme exploits the orthogonalized effective channels to yield the transmit beamforming and receive combining vectors. As the proposed scheme generates a solution in a non-iterative fashion, it is more feasible than other iterative schemes. Simulation results show that the performance of our proposed scheme is very close to the conventional iterative scheme with significantly reduced complexity. For a system equipped with four transmit and four receive antennas with two users, the proposed scheme exhibits the bit error rate (BER) comparable to the conventional scheme with a complexity reduction of 79%.

Original languageEnglish
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE Global Telecommunications Conference, GLOBECOM 2009 - Honolulu, HI, United States
Duration: 2009 Nov 302009 Dec 4

Other

Other2009 IEEE Global Telecommunications Conference, GLOBECOM 2009
CountryUnited States
CityHonolulu, HI
Period09/11/3009/12/4

Fingerprint

Beamforming
Antennas
Bit error rate
Processing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kim, J. S., Moon, S. H., & Lee, I. (2009). Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization. In GLOBECOM - IEEE Global Telecommunications Conference [5426203] https://doi.org/10.1109/GLOCOM.2009.5426203

Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization. / Kim, Jin Sung; Moon, Sung Hyun; Lee, Inkyu.

GLOBECOM - IEEE Global Telecommunications Conference. 2009. 5426203.

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

Kim, JS, Moon, SH & Lee, I 2009, Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization. in GLOBECOM - IEEE Global Telecommunications Conference., 5426203, 2009 IEEE Global Telecommunications Conference, GLOBECOM 2009, Honolulu, HI, United States, 09/11/30. https://doi.org/10.1109/GLOCOM.2009.5426203
Kim JS, Moon SH, Lee I. Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization. In GLOBECOM - IEEE Global Telecommunications Conference. 2009. 5426203 https://doi.org/10.1109/GLOCOM.2009.5426203
Kim, Jin Sung ; Moon, Sung Hyun ; Lee, Inkyu. / Linear beamforming for multiuser MIMO downlink systems with channel orthogonalization. GLOBECOM - IEEE Global Telecommunications Conference. 2009.
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