Performance analysis of WS-EWC coded optical CDMA networks with/without LDPC codes

Chun Ming Huang, Jen-Fa Huan, Chao Chin Yang

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


One extended Welch-Costas (EWC) code family for the wavelength-division- multiplexing/spectral-amplitude coding (WDM/SAC; WS) optical code-division multiple-access (OCDMA) networks is proposed. This system has a superior performance as compared to the previous modified quadratic congruence (MQC) coded OCDMA networks. However, since the performance of such a network is unsatisfactory when the data bit rate is higher, one class of quasi-cyclic low-density parity-check (QC-LDPC) code is adopted to improve that. Simulation results show that the performance of the high-speed WS-EWC coded OCDMA network can be greatly improved by using the LDPC codes.

Original languageEnglish
Pages (from-to)265-270
Number of pages6
JournalOptical Fiber Technology
Issue number5
Publication statusPublished - 2010 Jan 1

All Science Journal Classification (ASJC) codes

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


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