Title :
Combined decision feedback equalization and coding for high SNR channels
Author :
Yellin, Daniel ; Vardy, Alexander ; Amrani, Ofer
Author_Institution :
Tel Aviv Univ., Israel
Abstract :
Motivated by the desire to transmit the maximum possible data rate through a band-limited additive-noise channel with intersymbol interference (ISI), a considerable research effort has been devoted to equalization techniques for such channels. We present a novel scheme that combines decision feedback equalization (DFE) with high-rate error-detection coding in an efficient manner. The proposed scheme is evaluated both analytically and by means of comprehensive computer simulations. In our analysis, we introduce an approximate mathematical model taking into account the error propagation phenomenon. Both evaluation methods show that power savings of 2.5 dB to 3 dB over the conventional DFE can be achieved at the expense of a moderate complexity increase
Keywords :
approximation theory; coding errors; decision feedback equalisers; error detection codes; error statistics; intersymbol interference; noise; telecommunication channels; ISI; approximate mathematical model; bandlimited additive noise channel; computer simulations; data rate; decision feedback equalization; equalization techniques; error propagation; evaluation methods; high SNR channels; high rate error detection coding; intersymbol interference; power savings; Attenuation; Computer errors; Decision feedback equalizers; Feedforward systems; Intersymbol interference; Mathematical model; Maximum likelihood estimation; Noise generators; Performance analysis; Power engineering computing;
Conference_Titel :
Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on
Conference_Location :
Whistler, BC
Print_ISBN :
0-7803-2453-6
DOI :
10.1109/ISIT.1995.550324