Title :
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
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;
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
DOI :
10.1109/ICICIC.2008.386
