Title :
Experimental investigation of a four-dimensional 256-ary lattice-based modulation format
Author :
Eriksson, Tobias A. ; Alreesh, Saleem ; Schmidt-Langhorst, Carsten ; Frey, Felix ; Berenguer, Pablo Wilke ; Schubert, Colja ; Fischer, Johannes K. ; Andrekson, Peter A. ; Karlsson, Magnus ; Agrell, Erik
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
A four-dimensional modulation format with 256 point from the D4-lattice (256-D4) is compared to PM-16QAM in experiments. 256-D4 is more sensitive at high OSNR but with a 21.3% overhead turbo product code, PM-16QAM outperforms 256-D4.
Keywords :
product codes; quadrature amplitude modulation; turbo codes; wavelength division multiplexing; 256-D4 format; PM-16QAM; WDM long-haul transmission; four-dimensional 256-ary lattice-based modulation format; overhead turbo product code; Bit error rate; Gain; Modulation; Optical noise; Optical transmitters; Sensitivity; Signal to noise ratio;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
