TITLE:
Performance Enhancement of Discrete Multi-Tone Systems with a Trigonometric Transform
AUTHORS:
Samir Abd Elghafar, Salaheldin M. Diab, Bassiouny M. Sallam, Moawad I. Dessouky, El-Sayed M. El-Rabaie, Fathi E. Abd El-Samie
KEYWORDS:
DMT System; Discretesine Transform; Discrete Fourier Transform; Time Domain Equalizer
JOURNAL NAME:
International Journal of Communications, Network and System Sciences,
Vol.7 No.1,
January
7,
2014
ABSTRACT: 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.