Title :
On optimal modulation and FEC overhead for future optical networks
Author :
Alvarado, Alex ; Ives, David J. ; Savory, Seb J. ; Bayvel, Polina
Author_Institution :
Opt. Networks Group, Univ. Coll. London, London, UK
Abstract :
Transceivers employing square PM-QAM with up to two FEC overheads are optimized based on the SNR distribution. For NSFNET two FEC overheads with PM-16QAM give an 82% throughput increase compared with PM-QPSK with 7% overhead.
Keywords :
forward error correction; optical fibre networks; optical modulation; quadrature amplitude modulation; quadrature phase shift keying; FEC overhead; NSFNET; PM-16QAM; PM-QPSK; SNR distribution; optical networks; optimal modulation; transceivers; Forward error correction; Modulation; Optical fiber networks; Optical transmitters; Receivers; Signal to noise ratio; Throughput;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
