Abstract
A novel Viterbi-type adaptive maximum likelihood sequence detection algorithm is developed and investigated in coherent optical communication systems in the presence of both laser phase noise and nonlinear phase noise. Compared with the nonadaptive version, it can self-adjust the effective memory length of the phase estimator and automatically deliver the optimum bit-error rate performance without requiring any prior statistical knowledge of the optical channel. The phase error variance of the estimator is also analytically investigated.
Original language | English |
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Article number | 6716029 |
Pages (from-to) | 583-586 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 26 |
Issue number | 6 |
DOIs | |
Publication status | Published - 15 Mar 2014 |
Externally published | Yes |
Keywords
- Carrier phase estimation
- coherent detection
- nonlinear compensation
- nonlinear phase noise
- sequence detection
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering