Title :
Multiplier-free realtime phase tracking in digital synchronous QPSK receiver for coherent optical detection
Author :
Hoffmann, S. ; Herath, V. ; El-Darawy, M. ; Pfau, T. ; Wördehoff, C. ; Peveling, R. ; Rückert, U. ; Noé, R.
Author_Institution :
EIM-E, Univ. of Paderborn, Paderborn, Germany
Abstract :
A multiplier-free phase estimation algorithm based on the barycentre approach for coherent QPSK detection is presented. A selectivity mechanism was developed that significantly improved its performance. In addition to recently published measurement results, theoretical background and new simulation results are presented.
Keywords :
optical communication; optical receivers; phase estimation; quadrature phase shift keying; barycentre approach; coherent QPSK detection; coherent optical detection; digital synchronous QPSK receiver; multiplier-free phase estimation algorithm; multiplier-free realtime phase tracking; Digital signal processing; Optical detectors; Optical receivers; Phase detection; Phase estimation; Phase modulation; Quadrature phase shift keying; Signal processing algorithms; Switches; Viterbi algorithm;
Conference_Titel :
Industrial and Information Systems (ICIIS), 2009 International Conference on
Conference_Location :
Sri Lanka
Print_ISBN :
978-1-4244-4836-4
Electronic_ISBN :
978-1-4244-4837-1
DOI :
10.1109/ICIINFS.2009.5429888
