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Joint Transmitter-Receiver Optimization for Bonded Wireline Communications

Authors: Mohammed H. Nafie, Ahmed F. Shalash


With the advent of DSL services, high data rates are now available over phone lines, yet higher rates are in demand. In this paper, we optimize the transmit filters that can be used over wireline channels. Results showing the bit error rates when optimized filters are used, and with a decision feedback equalizer (DFE) employed in the receiver, are given. We then show that significantly higher throughput can be achieved by modeling the channel as a multiple input multiple output (MIMO) channel. A receiver that employs a MIMO-DFE that deals jointly with several users is proposed and shown to provide significant improvement over the conventional DFE.

Keywords: DFE, MIMO Channels, Receiver Architectures, Transmit Filters.

Digital Object Identifier (DOI):

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[1] N. Al-Dhahir, "Optimum Finite Length LTI Transmit Filters for ISI Channels," IEEE ICASSP, Seattle, WA, May 1998.
[2] S.T. Chung et al, "A Game-Theoretic Approach to Power Allocation in Frequency-Selective Gaussian Interference Channels", IEEE Symposium on Information. Theory. July 2003.
[3] N. Al-Dhahir and J. Cioffi, "Block Transmission Over Dispersive Channels: Transmit Filter Optimization and Realization, and MMSEDFE Receiver Performance," IEEE Transactions on Information Theory, pp. 137-160, Jan. 1996.
[4] , J. M. Cioffi, G. P. Dudevoir, M. V. Eyuboglu, and G. D. Forney, "MMSE Decision-Feedback Equalizers and Coding. Parts I and II," IEEE Trans. On Comm., pp. 2582-2604, Oct. 1995.
[5] Scaglione, S. Barbarossa, and G. B. Giannakis, "Filterbank Transceivers Optimizing Information Rate in Block Transmission over Dispersive Channels", IEEE Transactions on Information Theory, pp. 1019-1032, April 1999.
[6] F. Shalash and M. Nafie, "Multiple Access Over Digital Subscriber Loops Using Optimal FIR Transmit Filter Bank," GLOBECOM, Rio, Brazil, Dec. 1999.
[7] Committee T1, Dynamic Spectrum Management Project,
[8] P.P. Vaidyanathan, Multirate Systems and Filter Banks, Prentice Hall, 1993.
[9] G. Cherubini , E. Eleftheriou, and S. Olcer, "Filtered Multitone Modulation for VDSL," GLOBECOM, vol. 2, pp 1139-1144, Rio, Brazil, Dec. 1999.
[10] S. Galli et al, "Multiuser channel estimation: finding the best sparse representation of crosstalk on the basis of over-complete dictionaries," GLOBECOM 2002, pp. 1213-1217, Nov. 2002.
[11] Duel-Hallen, "Equalizers for Multiple Input/Multiple Output Channels and PAM Systems with Cyclostationary Input Sequences," IEEE J-SAC, vol. 10, pp. 630-639, April 1992.
[12] N. Al-Dhahir and J. Cioffi, "MMSE Decision-Feedback Equalizers: Finite-Length Results," IEEE Transactions on Information Theory, pp. 961-975, July 1995.