Abstract

A new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulation (QAM) Nyquist systems is proposed. It is verified in 32- and 128-QAM systems that it can provide high linewidth tolerance with little complexity.

© 2016 Chinese Laser Press

Feedforward carrier recovery via pilot-aided transmission for single-carrier systems with arbitrary M-QAM constellations

Mohamed Morsy-Osman, Qunbi Zhuge, Lawrence R. Chen, and David V. Plant
Opt. Express 19(24) 24331-24343 (2011)

Low-complexity carrier phase estimation for M-ary quadrature amplitude modulation optical communication based on dichotomy

Xu Yan, Changqing Cao, Wenrui Zhang, Xiaodong Zeng, Zhejun Feng, Zengyan Wu, Xiyuan Su, and Ting Wang
Opt. Express 28(17) 25263-25277 (2020)

Feed-forward carrier phase recovery for offset-QAM Nyquist WDM transmission

Haoyuan Tang, Meng Xiang, Songnian Fu, Ming Tang, Perry Shum, and Deming Liu
Opt. Express 23(5) 6215-6227 (2015)

Eight-state trellis-coded optical modulation with signal constellations of four-dimensional M-ary quadrature-amplitude modulation

Shota Ishimura and Kazuro Kikuchi
Opt. Express 23(5) 6692-6704 (2015)

Pilot-aided carrier phase recovery for M-QAM using superscalar parallelization based PLL

Qunbi Zhuge, Mohamed Morsy-Osman, Xian Xu, Mohammad E. Mousa-Pasandi, Mathieu Chagnon, Ziad A. El-Sahn, and David V. Plant
Opt. Express 20(17) 19599-19609 (2012)