Minimum relevant error MIMO decision-feedback equalizer for high-speed wireless data communications

Author

Wang, Cheng-Kang ; Lee, Yumin

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

4

fYear

2003

fDate

11-15 May 2003

Firstpage

2375

Abstract

A new criterion for optimizing the coefficients of multi-input multi-output (MIMO) decision feedback equalizers (DFE) is proposed for asymmetric signal constellations. It is shown that the new criterion is a generalization of the minimum mean square error (MMSE) criterion. The proposed MIMO DFE can be applied to the equalization of Gaussian minimum shift keying (GMSK) signals. Simulation results indicate that the proposed method achieves a performance gain of as much as 2 dB without increasing equalization complexity.

Keywords

MIMO systems; data communication; decision feedback equalisers; least mean squares methods; minimum shift keying; radiocommunication; 2 dB; Gaussian minimum shift keying signals; MIMO decision-feedback equalizer; MMSE criterion; asymmetric signal constellations; coefficient optimization; equalization complexity; high-speed wireless data communications; minimum mean square error; minimum relevant error; multiple input multiple output; Constellation diagram; Data communication; Decision feedback equalizers; Intersymbol interference; MIMO; Maximum likelihood estimation; Multiple access interference; Performance gain; Signal processing; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204339

Filename

1204339