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.
Original language | English |
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Pages (from-to) | 2339-2352 |
Number of pages | 14 |
Journal | Journal of Lightwave Technology |
Volume | 34 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 May 2016 |
Keywords
- Bit-wise receivers
- channel coding
- forward error correction
- modulation
- optical networks
- soft-decision