Title
Post-FEC performance evaluation of coherent QPSK system with an enhanced pilot-aided CPE scheme
Abstract
In this paper, a simple and robust pilot-aided carrier phase estimation scheme with a modified phase unwrapping is proposed. The principle of the proposed phase unwrapping is shown with a step-by-step procedure. Further, we test the post-FEC BER performance for the pilot-aided carrier phase estimation scheme with the traditional and proposed phase unwrapping. For the proposed phase unwrapping, a cycle slip rate reduction of about 10 times is achieved than the case using the traditional phase unwrapping through simulations in the presence of Wiener phase noise. Finally, we present a 2.2 Eb/N0 gain and post-FEC error-free performance with only 0.78 % pilot overhead in a 32-Gbaud QPSK system using soft-decision forward error correction.
Year
DOI
Venue
2016
10.1007/s11107-016-0630-7
Photonic Network Communications
Keywords
Field
DocType
Pilot-aided CPE,Phase unwrapping,Differential penalty,Soft-decision FEC
Computer science,Phase noise,Computer network,Electronic engineering,Electrical engineering,Phase-shift keying
Journal
Volume
Issue
ISSN
32
2
1387-974X
Citations 
PageRank 
References 
0
0.34
1
Authors
5
Name
Order
Citations
PageRank
huizhong chen100.34
haiquan cheng210.70
yan li302.70
Jian Wu43912.86
JinTong Lin55912.58