Title :
A Comparison of Phase Estimation in Coherent Optical PSK System
Author :
Zhang, Shaoliang ; Kam, Pooi Yuen ; Chen, Jian ; Yu, Changyuan
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
We studied the performance comparison among data-aided maximum likelihood (DA ML) phase estimation, block phase estimation (PE) and differential detection in optical differential quadrature phase shift keying system. Numerical results show that DA ML has the best performance on both linear and nonlinear optical channel.
Keywords :
differential detection; differential phase shift keying; maximum likelihood estimation; optical fibre communication; optical receivers; optical signal detection; phase estimation; DA ML receiver; DQPSK; block phase estimation; data-aided maximum likelihood phase estimation; differential detection; optical PSK system; optical channel; optical differential quadrature phase shift keying system; phase estimation comparison; signal detection; Fiber nonlinear optics; High speed optical techniques; Maximum likelihood detection; Maximum likelihood estimation; Nonlinear optics; Optical receivers; Optical sensors; Optical signal processing; Phase estimation; Phase shift keying;
Conference_Titel :
PhotonicsGlobal@Singapore, 2008. IPGC 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3901-0
Electronic_ISBN :
978-1-4244-2906-6
DOI :
10.1109/IPGC.2008.4781442
