Investigation of suitability of RF signal transmission over FSO links

Pham Tien Dat, Alam Mohammad Shah, Kamugisha Kazaura, Kazuhiko Wakamori, Toshiji Suzuki, Kazunori Omae, Mitsuji Matsumoto, Yuji Aburakawa, Koichi Takahashi, Takuya Nakamura, Takeshi Higashino, Katsutoshi Tsukamoto, Shozo Komaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

Transmission of modulated RF signal using FSO communications links is receiving a lot of research interest recently. We are developing a new advanced DWDM RoFSO link system capable of transmitting multiple RF signals. In this paper, we present results from analytical modeling reflecting on the design parameters of the RoFSO system to evaluate and predict its performance. The parameters of interests include the atmospheric turbulence characterization parameter, Cn 3, as well as another important parameter in evaluating RF signals, SFDR. Results show that for W-CDMA signal transmission using RoFSO in presence of relative strong atmospheric turbulence, the SFDR value might occasionally drop below the required threshold of 60 dB. A 10 dB improvement of SFDR can be achieved when an optical power amplifier is employed. The paper also shows preliminary experimental results of a RF-FSO link performance in terms of CNR and ACLR when transmitting W-CDMA signal. Combination of theoretical and preliminary experimental works will give a helpful insight to the performance of the new RoFSO system.

Original languageEnglish
Title of host publication2007 International Symposium on High Capacity Optical Networks and Enabling Technologies, HONET
DOIs
Publication statusPublished - 2007
Event2007 International Symposium on High Capacity Optical Networks and Enabling Technologies, HONET - Dubai
Duration: 2007 Nov 182007 Nov 20

Other

Other2007 International Symposium on High Capacity Optical Networks and Enabling Technologies, HONET
CityDubai
Period07/11/1807/11/20

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Keywords

  • Adjacent channel leakage ratio (ACLR)
  • C
  • Free-space optical (FSO)
  • Radio on FSO (RoFSO)
  • Refractive index structure constant parameter
  • Spurious free dynamic range (SFDR)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Dat, P. T., Shah, A. M., Kazaura, K., Wakamori, K., Suzuki, T., Omae, K., Matsumoto, M., Aburakawa, Y., Takahashi, K., Nakamura, T., Higashino, T., Tsukamoto, K., & Komaki, S. (2007). Investigation of suitability of RF signal transmission over FSO links. In 2007 International Symposium on High Capacity Optical Networks and Enabling Technologies, HONET [4600248] https://doi.org/10.1109/HONET.2007.4600248