Title :
A low-complexity carrier phase and frequency offset estimator with adaptive filter length for coherent receivers
Author :
Meiyappan, A. ; Pooi-Yuen Kam ; Hoon Kim
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
We present a low-complexity joint carrier phase and frequency offset estimator, with adaptive sample averaging length according to the modulation format, signal-to-noise ratio, and laser linewidth. No preset parameters are required. It also achieves complete frequency estimation range.
Keywords :
adaptive filters; frequency estimation; optical modulation; optical receivers; adaptive filter length; adaptive sample averaging length; coherent receivers; complex-weighted decision-aided maximum-likelihood; elastic optical networks; frequency estimation range; frequency offset estimator; laser linewidth; low-complexity joint carrier phase; modulation format; signal-to-noise ratio;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1594
