DocumentCode
1163385
Title
Effect of noisy phase reference on coherent detection of band-limited offset-QPSK signals
Author
Fan, Feng ; Li, Loh-ming
Author_Institution
Res. Center for Inf. Syst., Univ. of Electron. Sci. & Technol. of China, Sichuan, China
Volume
38
Issue
2
fYear
1990
fDate
2/1/1990 12:00:00 AM
Firstpage
156
Lastpage
159
Abstract
The performance of bandlimited offset-quaternary-phase-shift-keying (OQPSK) systems in the presence of noisy phase reference and additive Gaussian noise is analyzed. Expressions for error probability calculation are obtained. A new search method for computing the detection loss and the required SNR of the phase reference is proposed. It is shown that when the rolloff factor for the Nyquist filtering is large, OQPSK surpasses QPSK, but when the rolloff factor is small, QPSK surpasses OQPSK
Keywords
filtering and prediction theory; phase shift keying; random noise; signal detection; Nyquist filtering rolloff factor; OQPSK; QPSK signals; SNR; additive Gaussian noise; bandlimited offset-quaternary-phase-shift-keying; coherent detection; detection loss; error probability calculation; noisy phase reference; Additive noise; Error probability; Filtering; Gaussian noise; Performance analysis; Phase detection; Phase noise; Quadrature phase shift keying; Search methods; Signal to noise ratio;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/26.47848
Filename
47848
Link To Document