Conference Proceeding

Distance distribution for turbo-equalized systems over static frequency selective channels

ENSEA, Cergy-Pontoise Univ., Pontoise
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on (impact factor: 4.63). 05/2008; DOI:10.1109/ICASSP.2008.4518268 pp.2949 - 2952 In proceeding of: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Source: IEEE Xplore

ABSTRACT In this paper we investigate the Euclidean distance distribution in turbo-equalized systems over static frequency-selective (ISI) channels . We propose a novel approach in evaluating the squared Euclidean distance between transmitted sequences at the output of the ISI channel based on the correlogram of error sequences. By inspecting autocorrelation properties of error sequences, we derive the main statistics of the output Euclidean distance. The proposed method provides a more comprehensive tool to predict system behavior with finite or infinite packet length. We exploit obtained results to evaluate the frame error rate (FER) performance of the system under maximum-likelihood sequence estimation.

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Keywords

error sequences
 
Euclidean distance distribution
 
frame error rate
 
infinite packet length
 
maximum-likelihood sequence estimation
 
output Euclidean distance
 
proposed method
 
sequences
 
squared Euclidean distance
 
static frequency-selective
 
system behavior
 
turbo-equalized systems