A SIMULATION TOOLS TO AID THE DESIGN OF by pptfiles

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									A SIMULATION TOOLS TO AID THE
  DESIGN OF DWDM NETWORK

  NAME    : Tirza Hardita
  NPM     : 11407052
Background
 DWDM is multiplexing technology in fiber optic used
  occasionally for long distance data transmission.
 Needed simulation to find total losses that got in DWDM
  transmission.
 Needed simulation to make easy calculation amplifier in
  DWDM.
Scope of The Research
 The problems that be discussed is limited to design
  simulation power budget to calculate the total losses and
  number of amplifiers required by DWDM transmission using
  GUI MATLAB program.
Research Objectives
 To facilitate calculate total losses in transmission lines.
 To facilitate calculate number of amplifiers needed in
  transmission line.
 To prove the best parameter in DWDM transmission.
Methodology of The Research
 Study literature.
 Design simulation with program MATLAB based on GUI.
 Coding process to produce appropriate simulation with
  purpose.
 Final step is testing simulation that has made.
Flowchart
              Display of Simulation
• Main Menu              • Menu Help
• Simulation Power Budget   • Simulation Fiber with Amplifier
• Simulation Power Budget   • Specification Details
Minimum
                              Result and Analysis
• Simulation Power Budget

Total Losses = (distance *attenuation)
                 +connector loss +
                splice loss
             = (250 * 0.3) + 1.5 + 0.1
             = 76.6 dB


PRx         = PTX - Total Losses +
              Safety Margin
            = 8 dBm - 76.6 dB + 3 dB
            = -65.6 dBm


LMax        = FL + (PRx - Pmin / α)
            = 250 + (-135.33)
            = 114.67 km
• Simulation Fiber Optic With Amplifier
   PRx    = PTX + (Gain Amp – Gain ASE) -
             Total Losses + Safety Margin
                                                 Options On Popup menu                  Input
           = 8 dBm + (25-3) dB - 76.6 dB+3dB   Type of Amplifier : EDFA   Length of Fiber : 250 Km
                                               Gain Amplifier : 25 dB     Power Transmitter : 8 dBm
           = -43.6 dBm                         Gain ASE : 3 dB            Power Minimum : -25 dBm
                                                                          Safety Margin : 3 dB
                                                                          Attenuation : 0.3 dB/Km
   ΔP     = PRx - Pmin                                                   Total Losses : 76.6 dB

           = -65.6 - (-25)
           = -40.6 dBm

   N      = ΔP / (GAmp-GASE)
           = -40.6/22
           = | -1.84 | = 2 amplifiers

   LMax   = FL + (PRx - Pmin / α)
           = 250 + 11:33
           = 261.33 km
• Simulation Power Budget Minimum
   Total Losses
    TL1        = (jarak1 * 0.4) + conlos + splicelossA
               = (300 * 0.4) + (2* 0.5) + (1 * 0.1)
               = 121.1 dB
    TL2        = (jarak1 * 0.4) + conlos + splicelossB
               = (300 * 0.4) + (2 * 0.5) + (1 * 0.5)
               = 121.5 dB
    TL3        = (jarak1 * 0.3) + conlos + splicelossA
               = (300 * 0.3) + (2 * 0.5) + (1 * 0.1)
               = 91.1 dB
    TL4        = (jarak1 * 0.3) + conlos + splicelossB
               = (300 * 0.3) + (2 * 0.5) + (1 * 0.5)
               = 91.5 dB


   Power Receiver
    PRa        = Ptrans - (TLA +30) + (sm +30)
               = 8 dBm - (91.1 + 30) dBm + 33 dBm
               = -80.1 DBm


   Maximum Length
    LM1        = flA + (PRa-30) - (PIN-30) / attA
               = 300 + (-80.1-30) - (-25-30) / 0.3
               = 116.33 km
    LM2        = flA + (PRa-30) - (APD-30) / attA
               = 300 + (-80.1-30) - (-34-30) / 0.3
               = 146.33 km
• Simulation Specification Details
CONCLUSIONS
 This program simulation can be used to facilitate calculating
  the value of power budget that will be generated.
 Results of the simulation are same to the mathematics
  calculation.
 DWDM better use wavelength 1550nm and amplifier EDFA
  because has a small attenuation and gain of EDFA bigger than
  gain Raman amplifier.
 According to existing theory, transmission long haul APD
  better than PIN because has a great sensitivities and can
  accommodate the wider bandwidth.
Suggestion

 To generate a simulation that much more complete and
  accurate to the real condition, it would require a more
  comprehensive type of parameters and has a predetermined
  value by the IEEE or ITU-T.

								
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