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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:98db718d0bf89da2e915ec31624499d68101b659175b122291fbf41d86cde068"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 5: Fundamentals of Cellular Communications"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 5.1, Page 130"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "ToCH=960.;# Total available channels\n",
+      "Cellarea=6.; #in km^2\n",
+      "Covarea=2000.;#in km^2\n",
+      "N1=4.;  # Cluster Size\n",
+      "N2=7.;  #Cluster Size\n",
+      "\n",
+      "#Calculations\n",
+      "Area1=N1*Cellarea;#for N=4\n",
+      "Area2=N2*Cellarea;#For N=7\n",
+      "No_of_clusters1=round(Covarea/Area1);\n",
+      "No_of_clusters2=round(Covarea/Area2);\n",
+      "No_of_CH1=ToCH/N1;    # No of channels with cluster size 4\n",
+      "No_of_CH2=ToCH/N2;    # No of channels with cluster size 7\n",
+      "SysCap1=No_of_clusters1*ToCH;\n",
+      "SysCap2=No_of_clusters2*ToCH;\n",
+      "\n",
+      "#Results\n",
+      "print 'System Capacity with cluster size 4 is %d channels'%SysCap1\n",
+      "print 'Number of clusters for covering total area with N equals 4 are %d'%No_of_clusters1\n",
+      "print 'System Capacity with cluster size 7 is %d channels'%SysCap2\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "System Capacity with cluster size 4 is 79680 channels\n",
+        "Number of clusters for covering total area with N equals 4 are 83\n",
+        "System Capacity with cluster size 7 is 46080 channels\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 5.2, Page 132"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Variable declaration\n",
+      "S_IAMP=18.;# S/I ratio in dB\n",
+      "S_IGSM=12.;# S/I ratio in dB\n",
+      "PPL=4.; # propogation path loss coefficient\n",
+      "\n",
+      "#Calculations\n",
+      "# Using Equation 5.16 on page no 132, we get\n",
+      "N_AMP=(1./3)*((6*10**(0.1*S_IAMP))**(2/PPL));#reuse factor for AMPS\n",
+      "  \n",
+      "N_GSM=(1./3)*((6*10**(0.1*S_IGSM))**(2/PPL));#reuse factor for GSM\n",
+      "\n",
+      "\n",
+      "#Result\n",
+      "print 'Reuse Factor for AMP system is N = %.3f = approx %d \\n'%(N_AMP,N_AMP+1);\n",
+      "print 'Reuse Factor for GSM system is N = %.3f = approx %d \\n'%(N_GSM,N_GSM+1);"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Reuse Factor for AMP system is N = 6.486 = approx 7 \n",
+        "\n",
+        "Reuse Factor for GSM system is N = 3.251 = approx 4 \n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 5.3, Page 132"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "VCH=395.;#Total voice channels\n",
+      "CallHT=120.;#average call holding time in sec\n",
+      "Blocking=0.02;# 2%\n",
+      "PPL=4.;  #propogation path loss coefficient\n",
+      "N1=4.      #reuse factor\n",
+      "N2=7.;     #reuse factor\n",
+      "N3=12.;    #reuse factor\n",
+      "\n",
+      "#Calculations&Results\n",
+      "No_of_VCH1=VCH/N1;  #for reuse factor N1\n",
+      "No_of_VCH2=VCH/N2;  #for reuse factor N2\n",
+      "No_of_VCH3=VCH/N3;  #for reuse factor N3\n",
+      "print 'NO of voice channels for N=4 are %d'%(round(No_of_VCH1));\n",
+      "print 'NO of voice channels for N=7 are %d'%(round(No_of_VCH2));\n",
+      "print 'NO of voice channels for N=12 are %d\\n'%(round(No_of_VCH3));\n",
+      "TrafLoad1=87.004;\n",
+      "Carryload1=(1-Blocking)*TrafLoad1;\n",
+      "TrafLoad2=45.877;\n",
+      "Carryload2=(1-Blocking)*TrafLoad2;\n",
+      "TrafLoad3=24.629;\n",
+      "Carryload3=(1-Blocking)*TrafLoad3;\n",
+      "# To find cell capacity\n",
+      "Ncall1=Carryload1*3600/CallHT;#Calls per hour per cell \n",
+      "Ncall2=Carryload2*3600/CallHT;\n",
+      "Ncall3=Carryload3*3600/CallHT;\n",
+      "print 'calls per hour per cell for N=4 are %d'%(round(Ncall1));\n",
+      "print 'calls per hour per cell for N=7 are %d'%(round(Ncall2));\n",
+      "print 'calls per hour per cell for N=12 are %d  \\n'%(Ncall3);\n",
+      "# To find S BY I\n",
+      "# N=(1/3)[6*(S/I)]**(2/PPL)\n",
+      "S_I1=10*(PPL/2)*(math.log10(N1)-math.log10(1./3)-(2./PPL)*math.log10(6));#Mean S/I (dB)\n",
+      "\n",
+      "S_I2=10*(PPL/2)*(math.log10(N2)-math.log10(1./3)-(2./PPL)*math.log10(6));\n",
+      "S_I3=10*(PPL/2)*(math.log10(N3)-math.log10(1./3)-(2./PPL)*math.log10(6));\n",
+      "\n",
+      "print 'Mean S/I(dB) for N=4 is %.1f'%S_I1\n",
+      "print 'Mean S/I(dB) for N=7 is %.1f'%S_I2\n",
+      "print 'Mean S/I(dB) for N=12 is %.1f'%S_I3"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "NO of voice channels for N=4 are 99\n",
+        "NO of voice channels for N=7 are 56\n",
+        "NO of voice channels for N=12 are 33\n",
+        "\n",
+        "calls per hour per cell for N=4 are 2558\n",
+        "calls per hour per cell for N=7 are 1349\n",
+        "calls per hour per cell for N=12 are 724  \n",
+        "\n",
+        "Mean S/I(dB) for N=4 is 13.8\n",
+        "Mean S/I(dB) for N=7 is 18.7\n",
+        "Mean S/I(dB) for N=12 is 23.3\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 5.4, Page 154"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "spectrum=12.5*10**6; #in Hz\n",
+      "CHBW=200*10**3;#in Hz\n",
+      "N=4.;#reuse factor\n",
+      "Blocking=0.02; # 2%\n",
+      "callHT=120.;#average call holding time in sec\n",
+      "PPL=4.;#propogation path loss coefficient\n",
+      "CntrlCH=3.; #No of control channels\n",
+      "Ts=8.; # No of voice channels per RF channel\n",
+      "\n",
+      "#Calculations&Results\n",
+      "No_ofVCH=((spectrum*Ts)/(CHBW*N))-CntrlCH;\n",
+      "print 'No of voice channels for N=4 are %d'%(No_ofVCH)\n",
+      "TrafLoad=110.;\n",
+      "CarryLoad=(1-Blocking)*TrafLoad;\n",
+      "Ncall=CarryLoad*3600/callHT;\n",
+      "print 'Calls per hour per cell for N=4 are %d calls/hour/cell \\n '%(round(Ncall));\n",
+      "S_I=10*(PPL/2)*(math.log10(N)-math.log10(1./3)-(2./PPL)*math.log10(6));\n",
+      "print 'Mean S/I(dB) for N=4 is %.1f dB \\n '%(S_I)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "No of voice channels for N=4 are 122\n",
+        "Calls per hour per cell for N=4 are 3234 calls/hour/cell \n",
+        " \n",
+        "Mean S/I(dB) for N=4 is 13.8 dB \n",
+        " \n"
+       ]
+      }
+     ],
+     "prompt_number": 18
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 5.5, Page 139"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Variable declaration\n",
+      "VCH=395.;#Total allocated voice channels\n",
+      "CHBW=30.; # in kHz\n",
+      "Spectrum=12.5;  # in MHz\n",
+      "CallHT=120.; #Average call holding time in sec\n",
+      "Blocking=0.02; # 2%\n",
+      "PL=40.;  #slope of path loss in dBperdecade\n",
+      "\n",
+      "#Calculations&Results\n",
+      "print \"We consider only the \ufb01rst tier interferers and neglect the effects of cochannel interference from the second and other higher tiers.\"\n",
+      "#FOR 120degree sectorization\n",
+      "#N=4\n",
+      "VCH11=(VCH/(4*3));\n",
+      "OffLoad11=24.629;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site11=3*OffLoad11;\n",
+      "CarLoad11=(1-Blocking)*Load_site11;\n",
+      "Calls_hr_site11=CarLoad11*3600/CallHT;\n",
+      "R11=math.sqrt(CarLoad11/0.52);\n",
+      "Seff11=CarLoad11/(2.6*Spectrum*R11**2);\n",
+      "S_I11=PL*math.log10(math.sqrt(3*4))-10*math.log10(2);\n",
+      "#N=7\n",
+      "VCH12=(VCH/(3*7));\n",
+      "OffLoad12=12.341;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site12=3*OffLoad12;\n",
+      "CarLoad12=(1-Blocking)*Load_site12;\n",
+      "Calls_hr_site12=CarLoad12*3600/CallHT;\n",
+      "R12=math.sqrt(CarLoad12/0.52);\n",
+      "Seff12=CarLoad12/(2.6*Spectrum*R12**2);\n",
+      "S_I12=PL*math.log10(math.sqrt(3*7))-10*math.log10(2);\n",
+      "#N=12\n",
+      "VCH13=VCH/(3*12);\n",
+      "OffLoad13=5.842;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site13=3*OffLoad13;\n",
+      "CarLoad13=(1-Blocking)*Load_site13;\n",
+      "Calls_hr_site13=CarLoad13*3600/CallHT;\n",
+      "R13=math.sqrt(CarLoad13/0.52);\n",
+      "Seff13=CarLoad13/(2.6*Spectrum*R13**2);\n",
+      "S_I13=PL*math.log10(math.sqrt(3*12))-10*math.log10(2);\n",
+      "#For omnidirectional \n",
+      "#N=4\n",
+      "VCH21=VCH/(4);\n",
+      "OffLoad21=87.004;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site21=OffLoad21;\n",
+      "CarLoad21=(1-Blocking)*Load_site21;\n",
+      "Calls_hr_site21=CarLoad21*3600/CallHT;\n",
+      "R21=math.sqrt(CarLoad21/0.52);\n",
+      "Seff21=CarLoad21/(2.6*Spectrum*R21**2);\n",
+      "S_I21=PL*math.log10(math.sqrt(3*4))-10*math.log10(6);\n",
+      "#N=7\n",
+      "VCH22=VCH/(7);\n",
+      "OffLoad22=46.817;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site22=OffLoad22;\n",
+      "CarLoad22=(1-Blocking)*Load_site22;\n",
+      "Calls_hr_site22=CarLoad22*3600/CallHT;\n",
+      "R22=math.sqrt(CarLoad22/0.52);\n",
+      "Seff22=CarLoad22/(2.6*Spectrum*R22**2);\n",
+      "S_I22=PL*math.log10(math.sqrt(3*7))-10*math.log10(6);\n",
+      "#N=12\n",
+      "VCH23=VCH/(12);\n",
+      "OffLoad23=24.629;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site23=OffLoad23;\n",
+      "CarLoad23=(1-Blocking)*Load_site23;\n",
+      "Calls_hr_site23=CarLoad23*3600/CallHT;\n",
+      "R23=math.sqrt(CarLoad23/0.52);\n",
+      "Seff23=CarLoad23/(2.6*Spectrum*R23**2);\n",
+      "S_I23=PL*math.log10(math.sqrt(3*12))-10*math.log10(6);\n",
+      "# For 60degree Sectorization\n",
+      "#N=3\n",
+      "VCH31=VCH/(6*3);\n",
+      "OffLoad31=14.902;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site31=6*OffLoad31;\n",
+      "CarLoad31=(1-Blocking)*Load_site31;\n",
+      "Calls_hr_site31=CarLoad31*3600/CallHT;\n",
+      "R31=math.sqrt(CarLoad31/0.52);\n",
+      "Seff31=CarLoad31/(2.6*Spectrum*R31**2);\n",
+      "S_I31=PL*math.log10(math.sqrt(3*3))-10*math.log10(1);\n",
+      "#N=4\n",
+      "VCH32=VCH/(6*4);\n",
+      "OffLoad32=10.656;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site32=6*OffLoad32;\n",
+      "CarLoad32=(1-Blocking)*Load_site32;\n",
+      "Calls_hr_site32=CarLoad32*3600/CallHT;\n",
+      "R32=math.sqrt(CarLoad32/0.52);\n",
+      "Seff32=CarLoad32/(2.6*Spectrum*R32**2);\n",
+      "S_I32=PL*math.log10(math.sqrt(3*4))-10*math.log10(1);\n",
+      "#N=7\n",
+      "VCH33=VCH/(6*7);\n",
+      "OffLoad33=5.084;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site33=6*OffLoad33;\n",
+      "CarLoad33=(1-Blocking)*Load_site33;\n",
+      "Calls_hr_site33=CarLoad33*3600/CallHT;\n",
+      "R33=math.sqrt(CarLoad33/0.52);\n",
+      "Seff33=CarLoad33/(2.6*Spectrum*R33**2);\n",
+      "S_I33=PL*math.log10(math.sqrt(3*7))-10*math.log10(1);\n",
+      "#N=12\n",
+      "VCH34=VCH/(6*12);\n",
+      "OffLoad34=2.227;  #  Offered traf\ufb01c load per sector from Erlang-B table(Appendix A)\n",
+      "Load_site34=6*OffLoad34;\n",
+      "CarLoad34=(1-Blocking)*Load_site34;\n",
+      "Calls_hr_site34=CarLoad34*3600/CallHT;\n",
+      "R34=math.sqrt(CarLoad34/0.52);\n",
+      "Seff34=CarLoad34/(2.6*Spectrum*R34**2);\n",
+      "S_I34=PL*math.log10(math.sqrt(3.*12))-10*math.log10(1);\n",
+      "\n",
+      "print 'For Omnidirectional    Calls_per_hour_per_cellsite      Mean S_I ratio      SpecrtalEfficiency'\n",
+      "print 'For N=4                         %d                           %.1f          %.3f\\n'%(Calls_hr_site21,S_I21,Seff21);\n",
+      "print 'For N=7                         %d                           %.1f          %.3f\\n'%(Calls_hr_site22,S_I22,Seff22);\n",
+      "print 'For N=12                        %d                            %.1f          %.3f\\n'%(Calls_hr_site23,S_I23,Seff23);\n",
+      "\n",
+      "print 'For 120deg sector    Calls_per_hour_per_cellsite      Mean S_I ratio      SpecrtalEfficiency\\n'\n",
+      "print 'For N=4                         %d                           %.1f          %.3f\\n'%(Calls_hr_site11,S_I11,Seff11);\n",
+      "print 'For N=7                         %d                           %.1f          %.3f\\n'%(Calls_hr_site12,S_I12,Seff12);\n",
+      "print 'For N=12                        %d                            %.1f          %.3f\\n'%(Calls_hr_site13,S_I13,Seff13);\n",
+      "\n",
+      "print 'For 60 deg Sector    Calls_per_hour_per_cellsite        Mean S_I ratio      SpecrtalEfficiency\\n'\n",
+      "print 'For N=3                         %d                           %.1f          %.3f\\n'%(Calls_hr_site31,S_I31,Seff31);\n",
+      "print 'For N=4                         %d                           %.1f          %.3f\\n'%(Calls_hr_site32,S_I32,Seff32);\n",
+      "print 'For N=7                          %d                           %.1f          %.3f\\n'%(Calls_hr_site33,S_I33,Seff33);\n",
+      "print 'For N=12                         %d                           %.1f          %.3f\\n'%(Calls_hr_site34,S_I34,Seff34);"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "We consider only the \ufb01rst tier interferers and neglect the effects of cochannel interference from the second and other higher tiers.\n",
+        "For Omnidirectional    Calls_per_hour_per_cellsite      Mean S_I ratio      SpecrtalEfficiency\n",
+        "For N=4                         2557                           13.8          0.016\n",
+        "\n",
+        "For N=7                         1376                           18.7          0.016\n",
+        "\n",
+        "For N=12                        724                            23.3          0.016\n",
+        "\n",
+        "For 120deg sector    Calls_per_hour_per_cellsite      Mean S_I ratio      SpecrtalEfficiency\n",
+        "\n",
+        "For N=4                         2172                           18.6          0.016\n",
+        "\n",
+        "For N=7                         1088                           23.4          0.016\n",
+        "\n",
+        "For N=12                        515                            28.1          0.016\n",
+        "\n",
+        "For 60 deg Sector    Calls_per_hour_per_cellsite        Mean S_I ratio      SpecrtalEfficiency\n",
+        "\n",
+        "For N=3                         2628                           19.1          0.016\n",
+        "\n",
+        "For N=4                         1879                           21.6          0.016\n",
+        "\n",
+        "For N=7                          896                           26.4          0.016\n",
+        "\n",
+        "For N=12                         392                           31.1          0.016\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 22
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file