Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33563
Title: Carrier phase estimation through the rotation algorithm for 64-QAM optical systems
Authors: Bilal, SM
Bosco, G
Cheng, J
Lau, APT
Lu, C 
Keywords: Bit error rate (BER)
Carrier phase recovery
Quadrature amplitude modulation (QAM)
Triangle edge (TE)
Viterbi & Viterbi algorithm
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers
Source: Journal of lightwave technology, 2015, v. 33, no. 9, 7038197, p. 1766-1773 How to cite?
Journal: Journal of lightwave technology 
Abstract: A novel low-complexity two-stage digital feed-forward carrier phase estimation algorithm based on the rotation of constellation points to remove phase modulation for a 64-ary quadrature amplitude modulation (QAM) system is proposed and analyzed both experimentally and through numerical simulations. The first stage is composed of a Viterbi and Viterbi (V&V) block, based on either the standard quadrature phase shift keying (QPSK) partitioning algorithm using only Class-1 symbols or a modified QPSK partitioning scheme utilizing both Class-1 and outer most triangle-edge (TE) symbols. The second stage applies the V&V algorithm after the removal of phase modulation through rotation of constellation points. Comparison of the proposed scheme with constellation transformation, blind phase search (BPS) and BPS+MLE (maximum likelihood estimation) algorithm is also shown. For an OSNR penalty of 1 dB at bit error rate of 10-2, the proposed scheme can tolerate a linewidth times symbol duration product (Δv • Ts) equal to 3.7 times 10-5, making it possible to operate 32-GBd optical 64-QAM systems with current commercial tunable lasers.
URI: http://hdl.handle.net/10397/33563
ISSN: 0733-8724
EISSN: 1558-2213
DOI: 10.1109/JLT.2015.2402441
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

9
Last Week
0
Last month
2
Citations as of Nov 15, 2017

WEB OF SCIENCETM
Citations

9
Last Week
0
Last month
1
Citations as of Nov 19, 2017

Page view(s)

41
Last Week
1
Last month
Checked on Nov 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.