Title :
Performance evaluation of the MMSE delayed decision feedback sequence detector
Author :
Magarini, Maurizio ; Spalvieri, Arnaldo ; Tartara, Guido
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 (1979) detector is the delayed decision feedback sequence detector (DDFSD). In order to achieve good performance, it is crucial to operate an appropriate prefiltering of the received sequence before the DDFSD. This paper is devoted to performance evaluation of the DDFSD when the prefilter of a minimum mean square error decision feedback equalizer is adopted. The union upper bound is used to evaluate the probability of first-event error, and truncation of the sum to the error sequences that dominate the performance is discussed
Keywords :
Viterbi detection; decision feedback equalisers; delays; error statistics; filtering theory; least mean squares methods; matched filters; DDFSD; MMSE DFE; MMSE delayed decision feedback sequence detector; Viterbi detector; binary uncoded data sequence; decision feedback equalizer; error sequences; first-event error probability; minimum mean square error DFE; performance evaluation; prefiltering; received sequence; sampled matched filter; signal equalization; union upper bound; Additive white noise; Character generation; Decision feedback equalizers; Delay; Detectors; Gaussian noise; Matched filters; Maximum likelihood detection; Mean square error methods; Viterbi algorithm;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965709
