Performance of ADC resolution-limited optical coherent receivers with DA-ML carrier phase estimation

Yuanwei Fan, Jian Chen, Yong Zhang, Changyuan Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

We investigate the performance of decision-aided maximum likelihood (DA-ML) carrier phase estimation (CPE) algorithm in analog-to-digital converter (ADC) resolution-limited optical coherent receivers. The signal model of ADC resolution-limited receiver is established, and its bit error rate with DA-ML CPE in M-ary phase-shift keying (MPSK) system is analyzed. Simulation results show that N+ 2 (N bits per symbol)-bit resolution is acceptable and N+ 3 bit is sufficient for DA-ML receiver in MPSK (M= 4 , 8 , 16) system, and for 16-ary quadrature amplitude modulation system, 6-bit resolution is reasonable. Simulation and theoretical analyses both indicate that the optimal ADC quantization range equals to the average amplitude of received symbols which carry the information symbols with the highest energy on the constellation.
Original languageEnglish
Pages (from-to)285-293
Number of pages9
JournalPhotonic Network Communications
Volume31
Issue number2
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes

Keywords

  • ADC resolution
  • DA-ML
  • Optical coherent receiver
  • Phase estimation
  • Quantization range

ASJC Scopus subject areas

  • Software
  • Atomic and Molecular Physics, and Optics
  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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