A new fast householder-based fractionally-spaced FIR MMSE-DFE computation algorithm and its real-time implementation

Authors:
K. M. Zahidul Islam;Naofal Al-Dhahir;Russell McKown;Robert Dawes;Christopher Stillo
Affiliations:
Department of Electrical Engineering, The University of Texas at Dallas, Richardson, TX;Department of Electrical Engineering, The University of Texas at Dallas, Richardson, TX;Advanced Receiver Technologies, Inc., Dallas, TX;QED Corporation, Bedford, TX;Xilinx, Inc., Dallas, TX
Venue:
IEEE Communications Letters
Year:
2010

Citing 3
Cited 0

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Abstract

We present a new parallel algorithm for computing the optimum coefficients of the fractionally-spaced FIR MMSE-DFE based on the Householder orthogonal transformation which avoids the back-substitution computational bottleneck in [1]. The resulting significant reductions in the algorithm's execution time are demonstrated through a real-time FPGA implementation.