Title :
Error propagation in blind sequence estimation
Author :
Tang, Xiang-Guo ; Ding, Zhi
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
fDate :
6/1/2002 12:00:00 AM
Abstract :
We demonstrate how error propagation may occur with blind sequence estimation based on the Viterbi algorithm (BSE-VA). We further show that differential encoding can be used to alleviate this error propagation in blind sequence estimation. In addition, we compare the BSE-VA with a much simpler differential correlation approach (DCA) method for differentially encoded input symbols.
Keywords :
differential phase shift keying; encoding; error statistics; maximum likelihood estimation; sequential estimation; BER; BPSK input signal; BSE-VA; Viterbi algorithm; blind sequence estimation; differential correlation approach; differential encoding; error propagation; Additive noise; Antennas and propagation; Baseband; Digital communication; Estimation error; Phase estimation; Receiving antennas; Statistics; Vectors; Viterbi algorithm;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.1010876
