Title :
Performance evaluation of the mean-square prefiltered delayed decision feedback sequence detector
Author :
Magarini, M. ; Spalvieri, A. ; Tartara, G.
Author_Institution :
Dipt. di Elettronica e Inf., Politecnico di Milano, Italy
Abstract :
In signal equalization, a technique that allows reduction of the number of states of the Viterbi detector is the delayed decision feedback sequence detector (DDFSD). In order to achieve good performance, it is essential to operate, before the DDFSD, an appropriate prefiltering of the received sequence. This paper is devoted to performance evaluation of the DDFSD when the feedforward filter of a minimum mean square error decision feedback equalizer is adopted as a prefilter. A truncated version of the union bound is used to approximate the bit error rate. The analysis includes a method for determining the error events that dominate the bound
Keywords :
Viterbi detection; decision feedback equalisers; error statistics; feedforward; matched filters; maximum likelihood detection; maximum likelihood sequence estimation; mean square error methods; signal sampling; Viterbi detector; bit error rate; decision feedback equalizer; delayed decision feedback sequence detector; feedforward filter; mean-square prefiltered DDFSD; minimum mean square error; performance evaluation; sampled matched filter; signal equalization; truncated union bound; Bit error rate; Decision feedback equalizers; Delay; Detectors; Finite impulse response filter; Matched filters; Maximum likelihood detection; Mean square error methods; State feedback; Viterbi algorithm;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
DOI :
10.1109/PIMRC.2001.965399
