Title :
Two-phased capacity upgrade method for NG-PON2 with hierarchical star 8-QAM and square 16-QAM
Author :
Iiyama, Noriko ; Kani, Jun-ichi ; Terada, Jun ; Yoshimoto, Naoto
Author_Institution :
NTT Access Network Service Syst. Labs., NTT Corp., Yokosuka, Japan
Abstract :
We propose a two-phased upgrade method of capacity per wavelength in NG-PON2. Coexistence with conventional NG-PON2 ONUs and a higher capacity are realized using star 8-QAM and square 16-QAM in phases 1 and 2, respectively.
Keywords :
next generation networks; passive optical networks; quadrature amplitude modulation; NG-PON2 ONUS; hierarchical star 8-QAM; square 16-QAM; two-phased capacity upgrade method; Amplitude shift keying; Digital signal processing; Numerical analysis; Optical modulation; Optical network units; Phase shift keying;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
