Performance evaluation of OOK free-space optical transmission system with dynamic decision threshold and coherent detection

Zixiong Wang, Wen De Zhong, Shaoliang Zhang, Changyuan Yu, Yicheng Ding

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)


Transmission performance of free-space optical (FSO) communication is severely degraded by scintillation effect, which is a slow fading process. In this paper, we propose a dynamic decision threshold scheme to efficiently detect the bit stream. The decision threshold is varied in every sub-millisecond time slot. In addition, it is shown that coherent detection with 10dBm-local oscillator (LO) can make the BER performance better than 10-3under different atmospheric turbulence scenarios from weak to strong.
Original languageEnglish
Title of host publication2010 Photonics Global Conference, PGC 2010
Publication statusPublished - 1 Dec 2010
Externally publishedYes
Event2010 Photonics Global Conference, PGC 2010 - Orchard, Singapore
Duration: 14 Dec 201016 Dec 2010


Conference2010 Photonics Global Conference, PGC 2010


  • Coherent detection
  • Dynamic decision threshold
  • Free-space optical (FSO)
  • On-off-keying (OOK)
  • Scintillation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mathematical Physics
  • Atomic and Molecular Physics, and Optics

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