Title :
Investigation of CAZAC sequences for data-aided channel estimation considering nonlinear optical transmission
Author :
Nolle, Markus ; Frey, Felix ; Elschner, Robert ; Schmidt-Langhorst, Carsten ; Fischer, Johannes K. ; Schubert, Colja
Author_Institution :
Fraunhofer Inst. for Telecommun., Heinrich Hertz Inst., Berlin, Germany
Abstract :
We investigate CAZAC sequences with positive and negative chirp for the use as training sequences in data-aided channel estimation. While both sequences show the same linear performance, the right choice of chirp is critical in case of nonlinear transmission. A performance difference of up to 2 dBQ was experimentally verified.
Keywords :
channel estimation; error statistics; optical communication; CAZAC sequences; data-aided channel estimation; negative chirp; nonlinear optical transmission; positive chirp; Decision support systems; Optical fibers;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
