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Switching between two different fractionally spaced subband adaptive equalisation structures

Weiss, S. and Mohamad, Hafizal and Hadef, M. (2002) Switching between two different fractionally spaced subband adaptive equalisation structures. In: IMA Conference on Mathematics in Communications, 2002-12-16 - 2002-12-18.

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Abstract

This paper discusses methods for the fast adaptation of fractionally spaced equalisers. Subband methods offer advantages in adapting large scale equaliser, whereby two structures have been previously proposed. A first structure is faster, but can only be operated in training mode. A second structure permits the use in both training and decision directed mode at the cost of slower convergence. We propose and demonstrate a switching method to exploit the various benefits as best as possible.