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A commutating decision feedback equalizer (CDFE) for digital mobile radios


Author(s) : Sheikh AUH Tantikovit S, 
Publisher : IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Publication Date : 2001
ISSN : N/A
Abstract : We propose a new structure of decision feedback adaptive equalizer (DFE) suitable for use in mobile radio systems. The proposed structure named Commutating Decision Feedback Equalizer (CDFE) has two DFEs that operate in a commutating fashion; the two DFEs commutate between training and equalization. Such a commutating operation effectively lengthens the equalizer tracking period over time variant channels. Thus, the CDFE has a superior performance over the conventional DFE in fading channels. Simulation results are presented in the paper.,