New Multi-Modulus Algorithms for Blind Decision- Feedback Equalization of High-Order QAM Signals

Author

Liu, Feng ; Ge, Lin-dong ; Li, Jia-ming ; Liu, Shi-gang

Author_Institution

Inst. of Inf. Eng., Inf. Eng. Univ., Zhengzhou

fYear

2008

fDate

18-20 June 2008

Firstpage

386

Lastpage

386

Abstract

Two new multi-modulus algorithms (MMA)-the dual-mode MMA and the stop-and-go dual-mode MMA for blind decision-feedback equalization of highorder quadrature amplitude modulation (QAM) signals are proposed. Simulations using a fractionallyspaced decision-feedback equalization (DFE) setting are used to compare the proposed scheme with the recently introduced multi-modulus algorithm. The proposed blind equalizers are shown to have faster convergence speed and improved steady-state mean square error, compared with the MMA.

Keywords

blind equalisers; decision feedback equalisers; least mean squares methods; quadrature amplitude modulation; blind decision-feedback equalization; fractionally-spaced decision-feedback equalization; high-order QAM signals; high-order quadrature amplitude modulation signals; multimodulus algorithms; steady-state mean square error; Algorithm design and analysis; Blind equalizers; Convergence; Decision feedback equalizers; Digital communication; Intersymbol interference; Quadrature amplitude modulation; Steady-state; Switches; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on

Conference_Location

Dalian, Liaoning

Print_ISBN

978-0-7695-3161-8

Electronic_ISBN

978-0-7695-3161-8

Type

conf

DOI

10.1109/ICICIC.2008.386

Filename

4603575