Title :
Improved SNR Estimator for QPSK Modulations
Author :
Liu, Guangzu ; Wang, Jianxin ; Xue, Wen ; Chen, Riqing
Author_Institution :
Sch. of Electron. & Opt. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A new non-data-aided signal-to-noise ratio estimator for QPSK modulations in additive white Gaussian noise is proposed. It uses a simplified structure to achieve a good performance with less computational complexity. Simulation results show that the new estimator has smaller bias than existing estimators. The small bias and low computational complexity make it useful for practical applications.
Keywords :
AWGN; computational complexity; quadrature phase shift keying; QPSK modulation; SNR estimator; additive white Gaussian noise; computational complexity; signal-to-noise ratio; Computational complexity; Digital signal processing; Estimation; Phase shift keying; Signal to noise ratio;
Conference_Titel :
E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on
Conference_Location :
Henan
Print_ISBN :
978-1-4244-7159-1
DOI :
10.1109/ICEEE.2010.5661261
