Low-complexity blind carrier phase recovery for C-mQAM coherent systems

P Zhang, H Ren, M Gao, J Lu, Z Le… - IEEE Photonics …, 2018 - ieeexplore.ieee.org
… schemes, including BPS, n-PSK partitioning and our proposed BPR algorithms. Therefore, …
Carrier phase recovery for 16-QAM using QPSK partitioning and sliding window averaging,…

Carrier phase recovery for set-partitioning QAM formats

J Lu, S Fu, Z Hu, L Deng, M Tang, D Liu… - Journal of lightwave …, 2018 - opg.optica.org
… for the CPR of QPSK format [20]. When it comes to 16-QAM, QPSK partitioning scheme is …
Therefore, it would limit the optimal number of symbols used in an averaging block especially …

[PDF][PDF] A High Performance FPGA Implementation of a Feed-Forward Carrier Phase Recovery Algorithm for 16-QAM Real-Time Coherent Receivers

IV Kostalampros - 2017 - dspace.lib.ntua.gr
… Βέβαια, πέρα απο την QPSK κωδικοποίηση υπάρχουν και κωδικοποιήσεις υψηλότερων ρυθ
ών. … Therefore, by averaging the carrier phase over many symbol intervals, it is possible to …

Filtered carrier phase estimator for high-order QAM optical systems

V Rozental, D Kong, B Corcoran, D Mello… - Journal of Lightwave …, 2018 - opg.optica.org
… Conversely, F-CPE does not require averaging because after QPSK partition the probability
… “Carrier phase recovery for 16-QAM using QPSK partitioning and sliding window averaging,…

VLSI implementations of carrier phase recovery algorithms for M-QAM fiber-optic systems

E Börjeson, C Fougstedt… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
… of using a block average as opposed to a sliding-window one… using the latter averaging
method, with different window sizes… for 16QAM coherent optical systems using QPSK partitioning,…

Implementation of Blind Carrier Phase Recovery for Coherent Fiber-Optical Receivers

E Börjesson - 2018 - odr.chalmers.se
… replace the sliding window average with a block average. To … with both average types and
varying carrier phase noise. The … phase recovery of a 16QAM signal using QPSK partitioning […

Low-complexity carrier phase recovery based on constellation classification for M-ary offset-QAM signal

H Tang, S Fu, H Liu, M Tang, P Shum… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
… or Cy requires 1 multiplier on average and 3 adders, and the … for 16QAM coherent optical
systems using QPSK partitioning”… equalization and carrier phase recovery in a 16-QAM optical …

Linewidth-tolerant and multi-format carrier phase estimation schemes for coherent optical m-QAM flexible transmission systems

T Yang, C Shi, X Chen, M Zhang, Y Ji, F Hua… - Optics express, 2018 - opg.optica.org
… Therefore, the conventional QPSK partitioning needs a long … of the phase offsets can be
mitigated by the averaging window. … like QPSK, 16-QAM, 32-QAM and 64-QAM here, we use the …

Machine learning assisted modulation-format transparent and nonlinearity tolerant carrier recovery scheme for intelligent receiver

Q Xiang, Y Yang, Q Zhang, Y Yao - Journal of Lightwave Technology, 2020 - opg.optica.org
… for both 28GS/s QPSK and 16-QAM systems in the back-to-back (… and modulation transparent
carrier phase recovery scheme to … average power of I and Q component of the transmitted …

Hardware optimization of dual-stage carrier-phase recovery for coherent optical receivers

CS Martins, FP Guiomar, AN Pinto - OSA Continuum, 2021 - opg.optica.org
… communication system performance using 16-QAM, 64-QAM, … quadrature phase-shift keying
(QPSK) partitioning approach … test phases, the angle interval and the moving average filter …