DocumentCode
2821824
Title
Low-Complexity Joint Channel Estimation and LDPC Decoding for Block Fading Channel
Author
Lin, Zhichu ; Yang, Zhixing ; Pan, Changyong
Author_Institution
Dept. of Electron. Eng., Tsinghua Univ., Beijing
fYear
2006
fDate
Aug. 31 2006-Sept. 1 2006
Firstpage
1
Lastpage
5
Abstract
This paper presents a low-complexity iterative joint channel estimation and LDPC decoding algorithm for block-fading channel. Normalized min-sum algorithm, which has a much lower complexity than sum-product algorithm, is used as LDPC decoding algorithm. By choosing an optimal normalization factor, the performance of our algorithm can be as good as its counterpart using sum-product algorithm, and only 0.3-0.5 dB away from the case where perfect CSI is known
Keywords
block codes; channel coding; channel estimation; fading channels; iterative decoding; parity check codes; LDPC decoding algorithm; block fading channel; iterative joint channel estimation; normalized min-sum algorithm; AWGN channels; Algorithm design and analysis; Binary phase shift keying; Channel estimation; Fading; Iterative algorithms; Iterative decoding; Iterative methods; Parity check codes; Sum product algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location
Busan
Print_ISBN
1-4244-0573-4
Electronic_ISBN
1-4244-0574-2
Type
conf
DOI
10.1109/APCC.2006.255801
Filename
4023106
Link To Document