Photonic Network Communications

, Volume 31, Issue 2, pp 285–293 | Cite as

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

  • Yuanwei Fan
  • Jian Chen
  • Yong Zhang
  • Changyuan Yu


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.


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


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Yuanwei Fan
    • 1
  • Jian Chen
    • 1
  • Yong Zhang
    • 1
  • Changyuan Yu
    • 2
  1. 1.School of InfoComm EngineeringNanjing University of Posts and TelecommunicationsNanjingChina
  2. 2.Department of Electrical and Computer EngineeringNational University of SingaporeSingaporeSingapore

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