Performance Enhancement of Discrete Multi-Tone Systems with a Trigonometric Transform

The sine transform can be used as a tool to conquer the problems of discrete multi-tone (DMT) systems to increase the bit rate. In the proposed discrete sine transform based discrete multi-tone (DST-DMT) system, we make use of the energy compaction property of the DST to reduce the channel effects on the transmitted signals. The mathematical model of the proposed DST system is presented in the paper. Simulation experiments have been carried out to test the effect of the proposed DST-DMT system. The results of these experiments show that the performance of the DST-DMT system is better than that of the traditional FFT-DMT system. The results also show that employing the proposed TEQ in the DST-DMT system can increase the bit rate by about 2.57 Mbps.

[1]  John M. Cioffi,et al.  Equalizer training algorithms for multicarrier modulation systems , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[2]  Inkyu Lee,et al.  Performance Evaluation of a Fast Computation Algorithm for the DMT in High-Speed Subscriber Loop , 1995, IEEE J. Sel. Areas Commun..

[3]  N. Al-Dhahir,et al.  Efficiently computed reduced-parameter input-aided MMSE equalizers for ML detection: a unified approach , 1996, IEEE Trans. Inf. Theory.

[4]  Norman C. Beaulieu,et al.  An improved DCT-based OFDM data transmission scheme , 2005, 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications.

[5]  Andrew B. Watson,et al.  Image Compression Using the Discrete Cosine Transform , 1994 .

[6]  Norman C. Beaulieu,et al.  A Comparison of DCT-Based OFDM and DFT-Based OFDM in Frequency Offset and Fading Channels , 2006, IEEE Transactions on Communications.

[7]  B.L. Evans,et al.  Unification and evaluation of equalization structures and design algorithms for discrete multitone modulation systems , 2005, IEEE Transactions on Signal Processing.

[8]  Marc Moonen,et al.  Linear and decision-feedback per tone equalization for DMT-based transmission over IIR channels , 2006, IEEE Trans. Signal Process..

[9]  John M. Cioffi,et al.  A cost-effective maximum likelihood receiver for multicarrier systems , 1992, [Conference Record] SUPERCOMM/ICC '92 Discovering a New World of Communications.

[10]  Marc Moonen,et al.  Linear and decision-feedback per tone equalization for DMT-based transmission over IIR channels , 2006, IEEE Transactions on Signal Processing.

[11]  Brian L. Evans,et al.  Equalization for discrete multitone transceivers to maximize bit rate , 2001, IEEE Trans. Signal Process..

[12]  J. Tuqan,et al.  PAPR Reduction in Trigonometric-Based OFDM Systems , 2007, 2007 Conference Record of the Forty-First Asilomar Conference on Signals, Systems and Computers.

[13]  Brian L. Evans,et al.  Iterative Refinement Methods for Time-Domain Equalizer Design , 2006, EURASIP J. Adv. Signal Process..

[14]  Marc Moonen,et al.  Per tone equalization for DMT-based systems , 2001, IEEE Trans. Commun..

[15]  B.L. Evans,et al.  DMT bit rate maximization with optimal time domain equalizer filter bank architecture , 2002, Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002..

[16]  Ming Ding,et al.  An achievable performance upper bound for discrete multitone equalization , 2004, IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..

[17]  An-Yeu Wu,et al.  Cost-efficient parallel lattice VLSI architecture for the IFFT/FFT in DMT transceiver technology , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).