Title :
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
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;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204339
