Title :
On phase correct blind deconvolution exploiting channel coding
Author :
Scherb, Ansgar ; Kühn, Volker ; Kammeyer, Karl-Dirk
Author_Institution :
Dept. of Commun. Eng., Bremen Univ., Germany
Abstract :
In this paper we derive an algorithm, which estimates the channel blindly exploiting the statistical dependencies of the transmitted signal caused by channel coding. An additional feature of this algorithm is that in contrast to most blind deconvolution algorithms phase correct estimates can be obtained. The error performance of the proposed algorithm depends on the characteristics of the channel code. If the code has appropriate properties, which is true for some convolutional codes as well as for several block codes, e.g. especially low-density parity check codes (LDPC), the proposed algorithm performs similarly or slightly better in comparison to higher order statics based algorithms.
Keywords :
block codes; channel coding; channel estimation; convolutional codes; deconvolution; higher order statistics; parity check codes; LDPC; blind deconvolution; block codes; channel coding; convolutional codes; higher order statics based algorithms; low-density parity check codes; Approximation algorithms; Block codes; Channel coding; Convolutional codes; Deconvolution; Logic; Maximum likelihood estimation; Parity check codes; Phase estimation; Protection;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341172