Performance Evaluation of Trellis Code Modulated oDQPSK Using the KLSE Method

M. Sathish Kumar, Hosung Yoon, Namkyoo Park

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A direct detection optical differential quadrature phase-shift keying (oDQPSK) system with trellis coded modulation (TCM) is proposed and analyzed. From the results obtained for the symbol-error rate, it is observed that the proposed oDQPSK-TCM system can perform about 5 dB better than the uncoded oDQPSK system. Optical signal-to-noise ratio penalty due to first-order polarization-mode dispersion of the proposed oDQPSK-TCM system is evaluated and compared with that of unequalized as well as electrically equalized oDQPSK systems.

Original languageEnglish
Pages (from-to)1245-1247
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number16
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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