DocumentCode
3491282
Title
New Results of SNR Estimation for High-Order Modulation
Author
Xu, Hua ; Zhang, Dongmei ; Guo, Jianxin
Author_Institution
Telecommun. Eng. Inst., Air Force Eng. Univ., Xian
fYear
2007
fDate
21-25 Sept. 2007
Firstpage
1212
Lastpage
1215
Abstract
The Cramer-Rao lower bounds (CRLB), data-aided maximum-likelihood (ML) signal-to-noise ratio (SNR) estimation algorithm (DAML), decision-directed ML SNR estimation algorithm (DDML) and an iterative ML SNR estimation algorithm for QAM signals are presented in this paper. The performance analysis, computer simulation and performance comparing with another blind SNR estimation algorithm [10, 11] and CRLB are completed. And then the corresponding conclusions are derived.
Keywords
maximum likelihood estimation; noise; quadrature amplitude modulation; Cramer-Rao lower bounds; QAM signals; data-aided ML SNR estimation; decision-directed ML SNR estimation; high-order modulation; iterative ML SNR estimation; maximum-likelihood SNR estimation; signal-to-noise ratio estimation; Computer simulation; Constellation diagram; Data engineering; Iterative algorithms; Maximum likelihood estimation; Microstrip; Performance analysis; Quadrature amplitude modulation; Signal to noise ratio; Statistics;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location
Shanghai
Print_ISBN
978-1-4244-1311-9
Type
conf
DOI
10.1109/WICOM.2007.309
Filename
4340084
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