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Improvement of Number of Sensors Simultaneously Connected to Optical Sensor Network Using Frequency domain Optical CDMA with Excess Noise Suppression

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2007, 12(6), pp.243-250
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

박상조 1

1서원대학교

Accredited

ABSTRACT

I propose the excess noise suppressed optical sensor network using optical CDMA with gain saturated optical amplifier in order to increase number of sensors simultaneously connected to network. Simulation analyses confirm that the maximum number of sensors simultaneously connected to the optical sensor network can be largely increased by increasing the gain of gain saturated optical amplifier owing to the spression of access noises with the assignment of sweeping frequency of optical sensors within 10MHz. In the case of the requested SNR of 20dB and the sweeping frequency of 10KHz, the maximum number of sensors simultaneously connected to the optical sensor network can be increased four times as many as the conventional system.

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