Hybrid OFDM/OOK Modulations in OCDMA Scheme for Free Space Optics


  • Chih-Ta Yen
  • Chia-Yu Liu


optical code-division multiple-access (OCDMA), free space optics (FSO), orthogonal frequency division multiplexing (OFDM), multiple access interference (MAI)


The study proposes hybrid analog/digital transmission format scheme which integrated optical code-division multiple-access (OCDMA) and polarization multiplexing technique in free space optics (FSO) transmission. Orthogonal frequency division multiplexing (OFDM) transmits as the analog format and (on-off keying) OOK transmits as digital format in the study, respectively. In the proposed hybrid OCDMA system, it has high-speed transmission, signal security and low cost…etc. The multiple access interference (MAI) can be efficiently eliminated by using the balanced detection scheme at the receive end.


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How to Cite

C.-T. Yen and C.-Y. Liu, “Hybrid OFDM/OOK Modulations in OCDMA Scheme for Free Space Optics”, Proc. eng. technol. innov., vol. 3, pp. 1–3, Aug. 2016.