DocumentCode
3611232
Title
EM-based SNR estimator for faster-than-Nyquist signalling system
Author
Xiaohu Liang ; Aijun Liu ; Xiaofei Pan ; Gang Wu
Author_Institution
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Volume
51
Issue
24
fYear
2015
Firstpage
2051
Lastpage
2053
Abstract
Considering the intentionally introduced inter-symbol interference and coloured noise, proposed is a new signal-to-noise ratio (SNR) estimator based on the expectation-maximisation algorithm for the faster-than-Nyquist signalling system. The proposed SNR estimator can maximise the likelihood function by iteratively using the soft information from the channel decoder. Moreover, the new SNR estimator can be applied into high-order modulation. The performance of the proposed SNR estimator is verified and tested.
Keywords
channel coding; decoding; expectation-maximisation algorithm; intersymbol interference; mobile radio; telecommunication signalling; channel decoder soft information; coloured noise; electromagnetic based SNR estimator; expectation-maximisation algorithm; faster-than-Nyquist signalling system; intersymbol interference; maximum likelihood function; signal-to-noise ratio estimator;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2015.1517
Filename
7335738
Link To Document