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Jointly Optimal MMSE design for non-redundant FIR precoding and equalization

Vijaya, KA and Hari, KVS (2010) Jointly Optimal MMSE design for non-redundant FIR precoding and equalization. In: Signal Processing and Communications (SPCOM), 2010 International Conference on , 18-21 July 2010 , Bangalore.

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We provide a filterbank precoding framework (FBP) for frequency selective channels using the minimum mean squared error (MMSE) criterion. The design obviates the need for introducing a guard interval between successive blocks, and hence can achieve the maximum possible bandwidth efficiency. This is especially useful in cases where the channel is of a high order. We treat both the presence and the absence of channel knowledge at the transmitter. In the former case, we obtain the jointly optimal precoder-equalizer pair of the specified order. In the latter case, we use a zero padding precoder, and obtain the MMSE equalizer. No restriction on the dimension or nature of the channel matrix is imposed. Simulation results indicate that the filterbank approach outperforms block based methods like OFDM and eigenmode precoding.

Item Type: Conference Paper
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Additional Information: Copyright 2010 IEEE. Personal use of this material is permitted.However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 19 Dec 2011 10:30
Last Modified: 19 Dec 2011 10:30
URI: http://eprints.iisc.ernet.in/id/eprint/38964

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