Title :
Iterative-LAPPR-statistic-decision-aided algorithm: A method for carrier phase synchronization and decoding in turbo-coded systems
Author :
Du, Jiqing ; Li, Zhiqiang ; Xiao, Yang ; Li, Feilong
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, the influence of imperfect carrier phase synchronization on the performance of turbo-coded system is analyzed and a novel method called Logarithm-A-Posteriori Probability-Ratios (LAPPRs)-statistic-decision-aided for carrier phase synchronization and decoding is proposed. The bits satisfying the criterion presented in this paper are chosen iteratively for Data-Aided estimation and phase estimation performance influenced by a few wrongly-decided bits are also mentioned. The bit error rate is investigated and shows the performance of this method is very close to the optimally synchronized system.
Keywords :
error statistics; iterative decoding; maximum likelihood estimation; phase estimation; satellite communication; synchronisation; turbo codes; bit error rate; data-aided estimation; iterative-LAPPR-statistic-decision-aided algorithm; logarithm-a-posteriori-probability-ratios-statistic-decision-aided method; optimally synchronized system; phase estimation performance; turbo-coded system; Decoding; Estimation; Iterative decoding; Phase estimation; Signal to noise ratio; Synchronization; Turbo codes; LAPPRs; iterative decoding; phase synchronization; statistic decision; turbo codes;
Conference_Titel :
Computer Science and Service System (CSSS), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9762-1
DOI :
10.1109/CSSS.2011.5974756
