Low Complexity Carrier Phase Estimation for 16-QAM Systems
- 10.2991/icmmita-16.2016.71How to use a DOI?
- Coherent optical communication; carrier phase estimation; 16QAM.
A low complexity carrier phase estimation (CPE) algorithm for 16-QAM systems is investigated in this paper. In the proposed CPE algorithm, the QPSK partitioning scheme is adopted to divide the symbols into three classes (C1, C2 and C3). The symbols in C1 and C3 are used to achieve the coarse estimation and then the symbols in C2 are used to achieve the fine estimation. In addition, the Mth-power operation is replaced by the M-level absolute operation for the removal of modulated data phase, which greatly reduced the complexity. The simulation results show that the proposed algorithm has better linewidth tolerance that the traditional Viterbi and Viterbi (V&V) algorithm.
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jilong Han AU - Wei Li AU - Haitao Yao PY - 2017/01 DA - 2017/01 TI - Low Complexity Carrier Phase Estimation for 16-QAM Systems BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SP - 397 EP - 400 SN - 2352-538X UR - https://doi.org/10.2991/icmmita-16.2016.71 DO - 10.2991/icmmita-16.2016.71 ID - Han2017/01 ER -