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Multichannel and block based precoding methods for fixed point equalization of nonlinear communication channels

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2 Author(s)
Redfern, Arthur J. ; Texas Instrum. Inc., Dallas, TX, USA ; Zhou, G.T.

Substantial power efficiency improvements are possible in communication systems if a moderate amount of nonlinearity is permitted at the transmitter amplifier and corrected for at the receiver. The Volterra series is a suitable model for many power amplifiers, and is readily incorporated into communication channel models. Existing fixed point equalization algorithms for Volterra channels place restrictive conditions on the locations of first-order kernel zeros. We show that multichannel and block based precoding linear equalization techniques can be combined with the fixed point equalizer to allow for exact equalization of Volterra systems with mixed-phase first-order kernels

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Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on

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