try40tcp.mdl

MATLAB程序

	  Points		  [0, 0; 15, 0]
	  Branch {
	    DstBlock		    "Gain"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 30]
	    DstBlock		    "Product2"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Gain"
	  SrcPort		  1
	  Points		  [75, 0; 0, -115]
	  DstBlock		  "Product1"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Product1"
	  SrcPort		  1
	  Points		  [20, 0; 0, 120]
	  DstBlock		  "Sum"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Product2"
	  SrcPort		  1
	  Points		  [20, 0; 0, -10]
	  DstBlock		  "Sum"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "Sum"
	  SrcPort		  1
	  Points		  [10, 0; 0, -45; -410, 0; 0, -100]
	  DstBlock		  "x(t)"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "combine\nx(t) & q(t)"
	  SrcPort		  1
	  DstBlock		  "red dropping \nfunction"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "red dropping \nfunction"
	  SrcPort		  1
	  DstBlock		  "drop prob"
	  DstPort		  1
	}
      }
    }
    Block {
      BlockType		      Sum
      Name		      "Sum"
      Ports		      [2, 1]
      Position		      [345, 270, 365, 310]
      Orientation	      "left"
      NamePlacement	      "alternate"
      ShowName		      off
      IconShape		      "rectangular"
      Inputs		      "+|+"
      SaturateOnIntegerOverflow	off
    }
    Block {
      BlockType		      SubSystem
      Name		      "TCP source"
      Ports		      [2, 2]
      Position		      [80, 91, 160, 204]
      ShowPortLabels	      on
      TreatAsAtomicUnit	      off
      RTWSystemCode	      "Auto"
      RTWFcnNameOpts	      "Auto"
      RTWFileNameOpts	      "Auto"
      MaskIconFrame	      on
      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "autoscale"
      System {
	Name			"TCP source"
	Location		[257, 454, 1072, 975]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"white"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
	PaperType		"A4"
	PaperUnits		"inches"
	ZoomFactor		"100"
	AutoZoom		on
	Block {
	  BlockType		  Inport
	  Name			  "lost\nprob"
	  Position		  [140, 103, 170, 117]
	  NamePlacement		  "alternate"
	  Port			  "1"
	  Interpolate		  on
	}
	Block {
	  BlockType		  Inport
	  Name			  "RTT"
	  Position		  [140, 158, 170, 172]
	  Port			  "2"
	  Interpolate		  on
	}
	Block {
	  BlockType		  Math
	  Name			  "1/rtt"
	  Ports			  [1, 1]
	  Position		  [210, 150, 240, 180]
	  Operator		  "reciprocal"
	  OutputSignalType	  "auto"
	}
	Block {
	  BlockType		  Sum
	  Name			  "AIMD"
	  Ports			  [2, 1]
	  Position		  [365, 207, 385, 243]
	  IconShape		  "rectangular"
	  Inputs		  "+|-"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Gain
	  Name			  "Gain"
	  Position		  [465, 435, 495, 465]
	  Orientation		  "left"
	  Gain			  "1/2"
	  Multiplication	  "Element-wise(K.*u)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Product
	  Name			  "Product"
	  Ports			  [2, 1]
	  Position		  [660, 81, 705, 114]
	  Inputs		  "2"
	  Multiplication	  "Element-wise(.*)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Saturate
	  Name			  "Saturation"
	  Position		  [580, 75, 610, 105]
	  UpperLimit		  "500"
	  LowerLimit		  "1"
	  LinearizeAsGain	  on
	}
	Block {
	  BlockType		  VariableTransportDelay
	  Name			  "Variable\nTransport Delay"
	  Position		  [545, 345, 580, 380]
	  Orientation		  "left"
	  NamePlacement		  "alternate"
	  MaximumDelay		  "10"
	  InitialInput		  "0"
	  MaximumPoints		  "20000"
	  PadeOrder		  "0"
	}
	Block {
	  BlockType		  Product
	  Name			  "decrease term"
	  Ports			  [2, 1]
	  Position		  [375, 425, 425, 460]
	  Orientation		  "left"
	  Inputs		  "2"
	  Multiplication	  "Element-wise(.*)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Constant
	  Name			  "dt"
	  Position		  [210, 90, 240, 120]
	  Value			  "1"
	  VectorParams1D	  on
	}
	Block {
	  BlockType		  Product
	  Name			  "dt/rtt"
	  Ports			  [2, 1]
	  Position		  [275, 111, 320, 144]
	  Inputs		  "2"
	  Multiplication	  "Element-wise(.*)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Product
	  Name			  "pkt lost rate"
	  Ports			  [2, 1]
	  Position		  [650, 345, 705, 380]
	  Orientation		  "left"
	  Inputs		  "2"
	  Multiplication	  "Element-wise(.*)"
	  SaturateOnIntegerOverflow on
	}
	Block {
	  BlockType		  Integrator
	  Name			  "window\n"
	  Ports			  [1, 1]
	  Position		  [445, 75, 475, 105]
	  ExternalReset		  "none"
	  InitialConditionSource  "internal"
	  InitialCondition	  "0"
	  LimitOutput		  off
	  UpperSaturationLimit	  "inf"
	  LowerSaturationLimit	  "-inf"
	  ShowSaturationPort	  off
	  ShowStatePort		  off
	  AbsoluteTolerance	  "auto"
	}
	Block {
	  BlockType		  Outport
	  Name			  "BW"
	  Position		  [745, 93, 775, 107]
	  Port			  "1"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "[]"
	}
	Block {
	  BlockType		  Outport
	  Name			  "window"
	  Position		  [745, 208, 775, 222]
	  Port			  "2"
	  OutputWhenDisabled	  "held"
	  InitialOutput		  "[]"
	}
	Line {
	  SrcBlock		  "window\n"
	  SrcPort		  1
	  Points		  [0, 0; 35, 0]
	  Branch {
	    Points		    [0, 360]
	    DstBlock		    "Gain"
	    DstPort		    1
	  }
	  Branch {
	    DstBlock		    "Saturation"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Gain"
	  SrcPort		  1
	  DstBlock		  "decrease term"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "decrease term"
	  SrcPort		  1
	  Points		  [-45, 0; 0, -210]
	  DstBlock		  "AIMD"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "dt"
	  SrcPort		  1
	  Points		  [15, 0]
	  DstBlock		  "dt/rtt"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "1/rtt"
	  SrcPort		  1
	  Points		  [0, 0; 5, 0]
	  Branch {
	    Points		    [10, 0]
	    DstBlock		    "dt/rtt"
	    DstPort		    2
	  }
	  Branch {
	    Points		    [0, -5; 385, 0; 0, -55]
	    DstBlock		    "Product"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "dt/rtt"
	  SrcPort		  1
	  Points		  [0, 75]
	  DstBlock		  "AIMD"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "AIMD"
	  SrcPort		  1
	  Points		  [15, 0; 0, -135]
	  DstBlock		  "window\n"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "RTT"
	  SrcPort		  1
	  Points		  [0, 0; 15, 0]
	  Branch {
	    DstBlock		    "1/rtt"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 235; 415, 0; 0, -30]
	    DstBlock		    "Variable\nTransport Delay"
	    DstPort		    2
	  }
	}
	Line {
	  SrcBlock		  "Saturation"
	  SrcPort		  1
	  Points		  [5, 0]
	  Branch {
	    DstBlock		    "Product"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 125]
	    DstBlock		    "window"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "Product"
	  SrcPort		  1
	  Points		  [10, 0]
	  Branch {
	    DstBlock		    "BW"
	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, 130]
	    DstBlock		    "pkt lost rate"
	    DstPort		    1
	  }
	}
	Line {
	  SrcBlock		  "lost\nprob"
	  SrcPort		  1
	  Points		  [5, 0; 0, 300; 575, 0; 0, -40]
	  DstBlock		  "pkt lost rate"
	  DstPort		  2
	}
	Line {
	  SrcBlock		  "pkt lost rate"
	  SrcPort		  1
	  Points		  [-30, 0; 0, -10]
	  DstBlock		  "Variable\nTransport Delay"
	  DstPort		  1
	}
	Line {
	  SrcBlock		  "Variable\nTransport Delay"
	  SrcPort		  1
	  Points		  [-70, 0; 0, 70]
	  DstBlock		  "decrease term"
	  DstPort		  1
	}
      }
    }
    Block {
      BlockType		      Scope
      Name		      "avg queue length"
      Ports		      [1]
      Position		      [520, 89, 550, 121]
      Floating		      off
      Location		      [695, 427, 1019, 666]
      Open		      off
      NumInputPorts	      "1"
      TickLabels	      "OneTimeTick"
      ZoomMode		      "on"
      List {
	ListType		AxesTitles
	axes1			"%<SignalLabel>"
      }
      Grid		      "on"
      TimeRange		      "auto"
      YMin		      "-5"
      YMax		      "5"
      SaveToWorkspace	      off
      SaveName		      "ScopeData1"
      DataFormat	      "StructureWithTime"
      LimitDataPoints	      on
      MaxDataPoints	      "5000"
      Decimation	      "1"
      SampleInput	      off
      SampleTime	      "0"
    }
    Block {
      BlockType		      Scope
      Name		      "inst queue length"
      Ports		      [1]
      Position		      [520, 24, 550, 56]
      Floating		      off
      Location		      [682, 114, 1006, 353]
      Open		      off
      NumInputPorts	      "1"
      TickLabels	      "OneTimeTick"
      ZoomMode		      "on"
      List {
	ListType		AxesTitles
	axes1			"%<SignalLabel>"
      }
      Grid		      "on"
      TimeRange		      "auto"
      YMin		      "-5"
      YMax		      "5"
      SaveToWorkspace	      off
      SaveName		      "ScopeData"
      DataFormat	      "StructureWithTime"
      LimitDataPoints	      on
      MaxDataPoints	      "5000"
      Decimation	      "1"
      SampleInput	      off
      SampleTime	      "0"
    }
    Block {
      BlockType		      Constant
      Name		      "propagation\ndelay"
      Position		      [410, 290, 440, 320]
      Orientation	      "left"
      Value		      "0.2"
      VectorParams1D	      on
    }
    Line {
      SrcBlock		      "TCP source"
      SrcPort		      1
      DstBlock		      "Gain"
      DstPort		      1
    }
    Line {
      SrcBlock		      "Gain"
      SrcPort		      1
      Points		      [0, 40]
      DstBlock		      "RED routers"
      DstPort		      1
    }
    Line {
      SrcBlock		      "RED routers"
      SrcPort		      2
      Points		      [40, 0; 0, 130]
      DstBlock		      "Sum"
      DstPort		      1
    }
    Line {
      SrcBlock		      "propagation\ndelay"
      SrcPort		      1
      DstBlock		      "Sum"
      DstPort		      2
    }
    Line {
      SrcBlock		      "Sum"
      SrcPort		      1
      Points		      [-290, 0; 0, -115]
      DstBlock		      "TCP source"
      DstPort		      2
    }
    Line {
      SrcBlock		      "RED routers"
      SrcPort		      4
      Points		      [15, 0; 0, -135; -355, 0; 0, 60]
      DstBlock		      "TCP source"
      DstPort		      1
    }
    Line {
      SrcBlock		      "RED routers"
      SrcPort		      1
      Points		      [65, 0; 0, -80]
      DstBlock		      "inst queue length"
      DstPort		      1
    }
    Line {
      SrcBlock		      "RED routers"
      SrcPort		      3
      Points		      [90, 0; 0, -65]
      DstBlock		      "avg queue length"
      DstPort		      1
    }
    Line {
      SrcBlock		      "TCP source"
      SrcPort		      2
      Points		      [30, 0; 0, 65; 275, 0; 0, -30]
      DstBlock		      "Congestion Window\n"
      DstPort		      1
    }
  }
}