Performance of carrier phase estimation QPSK optical coherent receiver with N bit resolution ADCS

Author

Yuanwei Fan ; Jian Chen ; Pu Cao ; Changyuan Yu

Author_Institution

Sch. of InfoComm Eng., Nanjing Univ. of Posts & Telecommun., Nanjing, China

fYear

2014

fDate

9-10 Nov. 2014

Firstpage

1

Lastpage

4

Abstract

We study the performance of QPSK optical receiver with carrier phase estimation in the presence of N bit resolution ADCs. Two carrier phase estimation schemes, decision-aided maximum likelihood and M-th power, are considered. Bit error rate (BER) of the receiver with phase noise, amplitude noise and ADC quantization noise is theoretically analyzed. Monte-Carlo (MC) simulation results show that 5 bit ADC resolution is sufficient for both phase estimated schemes with less than 0.2 dB SNR penalty compared with the case of infinite ADC resolution. The results are also verified based on latest version of VPItransmissionMaker while less than 0.5 dB OSNR penalty is observed.

Keywords

Monte Carlo methods; analogue-digital conversion; error statistics; maximum likelihood estimation; optical modulation; optical receivers; phase estimation; phase noise; quadrature phase shift keying; Monte-Carlo simulation; N bit resolution ADCS; OSNR penalty; QPSK optical coherent receiver; VPItransmissionMaker; amplitude noise; analog-to-digital converter; bit error rate; carrier phase estimation performance; decision-aided maximum likelihood; phase noise; receiver BER; Bit error rate; Optical receivers; Phase estimation; Phase shift keying; Quantization (signal); Signal to noise ratio; analog-to-digital converter (ADC) resolution; carrier phase estimation (CPE); optical coherent receiver;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communications and Networks (ICOCN), 2014 13th International Conference on

Conference_Location

Suzhou

Type

conf

DOI

10.1109/ICOCN.2014.6987116

Filename

6987116