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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3542/CH3 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3542/CH3')
| -rw-r--r-- | 3542/CH3/EX3.1/3_1.jpg | bin | 0 -> 93075 bytes | |||
| -rw-r--r-- | 3542/CH3/EX3.1/Ex3_1.sce | 40 | ||||
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| -rw-r--r-- | 3542/CH3/EX3.2/Ex3_2.sce | 33 | ||||
| -rw-r--r-- | 3542/CH3/EX3.4/3_4.jpg | bin | 0 -> 68595 bytes | |||
| -rw-r--r-- | 3542/CH3/EX3.4/Ex3_4.sce | 47 | ||||
| -rw-r--r-- | 3542/CH3/EX3.5/3_5.jpg | bin | 0 -> 85926 bytes | |||
| -rw-r--r-- | 3542/CH3/EX3.5/Ex3_5.sce | 50 | ||||
| -rw-r--r-- | 3542/CH3/EX3.6/3_6.jpg | bin | 0 -> 108328 bytes | |||
| -rw-r--r-- | 3542/CH3/EX3.6/Ex3_6.sce | 62 | ||||
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| -rw-r--r-- | 3542/CH3/EX3.7/Ex3_7.sce | 40 | ||||
| -rw-r--r-- | 3542/CH3/EX3.8/3_8.jpg | bin | 0 -> 64180 bytes | |||
| -rw-r--r-- | 3542/CH3/EX3.8/Ex3_8.sce | 30 | ||||
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| -rw-r--r-- | 3542/CH3/EX3.9/Ex3_9.sce | 29 |
16 files changed, 331 insertions, 0 deletions
diff --git a/3542/CH3/EX3.1/3_1.jpg b/3542/CH3/EX3.1/3_1.jpg Binary files differnew file mode 100644 index 000000000..1a9431709 --- /dev/null +++ b/3542/CH3/EX3.1/3_1.jpg diff --git a/3542/CH3/EX3.1/Ex3_1.sce b/3542/CH3/EX3.1/Ex3_1.sce new file mode 100644 index 000000000..8c7484e21 --- /dev/null +++ b/3542/CH3/EX3.1/Ex3_1.sce @@ -0,0 +1,40 @@ +// Example 3.1
+// To compute the number of channels available per cell for a)four-cell reuse system a)seven-cell reuse system a)12-cell reuse system
+// Page No.61
+
+clc;
+clear;
+
+// Given data
+B=33*10^6; // Total bandwidth allocated to particular FDD system in Hz
+Bc=25*10^3; // Bandwidth per channel in Hz
+Nc=2; // Number of simplex channels
+Bc=Bc*Nc; // Channel bandwidth in Hz
+
+Ntotal=B/Bc; // Total number of channels
+
+//a) To compute the number of channels available per cell for four-cell reuse system
+N=4; // frequency reuse factor
+chpercell=Ntotal/N; // number of channels available per cell for four-cell reuse system
+
+// Displaying the result in command window
+printf('\n The number of channels available per cell for 4-cell reuse system = %0.0f channels',chpercell);
+printf('\n One control channel and 160 voice channels would be assigned to each cell.');
+
+// b) To compute the number of channels available per cell for seven-cell reuse system
+N=7; // frequency reuse factor
+chpercell=ceil(Ntotal/N); // number of channels available per cell for seven-cell reuse system
+
+// Answer is varrying due to round-off error
+
+// Displaying the result in command window
+printf('\n \n The number of channels available per cell for 7-cell reuse system = %0.0f channels',chpercell);
+printf('\n Each cell would have one control channel, four cells would have 90 voice channels and three cells would have 91 voice channels.');
+
+// c) To compute the number of channels available per cell for 12-cell reuse system
+N=12; // frequency reuse factor
+chpercell=Ntotal/N; // number of channels available per cell for seven-cell reuse system
+
+// Displaying the result in command window
+printf('\n \n The number of channels available per cell for 12-cell reuse system = %0.0f channels',chpercell);
+printf('\n Each cell would have one control channel, eight cells would have 53 voice channels and four cells would have 54 voice channels.');
diff --git a/3542/CH3/EX3.2/3_2.jpg b/3542/CH3/EX3.2/3_2.jpg Binary files differnew file mode 100644 index 000000000..324925580 --- /dev/null +++ b/3542/CH3/EX3.2/3_2.jpg diff --git a/3542/CH3/EX3.2/Ex3_2.sce b/3542/CH3/EX3.2/Ex3_2.sce new file mode 100644 index 000000000..48fe407c6 --- /dev/null +++ b/3542/CH3/EX3.2/Ex3_2.sce @@ -0,0 +1,33 @@ +// Example 3.2
+// To find frequency reuse factor for path loss exponent (n) a)n=4 b)n=3
+// Page No.72
+
+clc;
+clear;
+
+// Given data
+SIdB=15; // Signal to interference(dB)
+io=6; // Number of cochannel cell
+
+// For n=4
+n1=4; // Path loss exponent
+N1=7; // First consideration: frequency reuse factor N=7
+DR1=sqrt(3*N1); // Co-channel reuse ratio
+si1=(1/io)*(DR1)^n1; // Signal to interference
+sidB1=10*log10(si1); // Signal to interference(dB)
+
+// For n=3
+n2=3; // Path loss exmponent
+si=(1/io)*(DR1)^n2; // Signal to interference for first consideration: frequency reuse factor N=7
+sidB=10*log10(si); // Signal to interference(dB)
+
+N2=12; // second consideration : frequency reuse factor N=12 since sidB<SIdB
+DR2=sqrt(3*N2); // Co-channel reuse ratio
+si2=(1/io)*(DR2)^n2; // Signal to interference
+sidB2=10*log10(si2); // Signal to interference(dB)
+
+// Displaying the result in command window
+printf('\n Signal to noise ratio for n=4 with frequency reuse factor N=7 = %0.2f dB',sidB1);
+printf('\n Signal to noise ratio for n=3 with frequency reuse factor N=7 = %0.2f dB',sidB);
+printf('\n Signal to noise ratio for n=3 with frequency reuse factor N=12 = %0.2f dB',sidB2);
+printf('\n Since SIR is for n=3 with frequency reuse factor N=7 greater than the minimum required, so N=12 is used.');
diff --git a/3542/CH3/EX3.4/3_4.jpg b/3542/CH3/EX3.4/3_4.jpg Binary files differnew file mode 100644 index 000000000..2152c271e --- /dev/null +++ b/3542/CH3/EX3.4/3_4.jpg diff --git a/3542/CH3/EX3.4/Ex3_4.sce b/3542/CH3/EX3.4/Ex3_4.sce new file mode 100644 index 000000000..f49410762 --- /dev/null +++ b/3542/CH3/EX3.4/Ex3_4.sce @@ -0,0 +1,47 @@ +// Example 3.4
+// To find number of users for Number of channels (C) a)C=1 b)C=5 c)C=10 d)C=20 e)C=100
+// Page No.80
+
+clc;
+clear;
+
+// Given data
+GOS=0.005; //G rade of Service
+Au=0.1; // Traffic intensity per user
+
+// a)To find number of users for C=1
+C1=1; // Number of channels
+A1=0.005; // Total traffic intensity from Erlangs B chart
+U1=(A1/Au); // Number of users
+U1=1; // Since one user could be supported on one channel
+
+// b)To find number of users for C=5
+C2=5; // Number of channels
+A2=1.13; // Total traffic intensity from Erlangs B chart
+U2=round(A2/Au); // Number of users
+
+// c)To find number of users for C=10
+C3=10; // Number of channels
+A3=3.96; // Total traffic intensity from Erlangs B chart
+U3=round(A3/Au); // Number of users
+
+// Answer is varrying due to round off error
+
+// d)To find number of users for C=20
+C4=20; // Number of channels
+A4=11.10; // Total traffic intensity from Erlangs B chart
+U4=round(A4/Au); // Number of users
+
+// Answer is varrying due to round off error
+
+// e)To find number of users for C=100
+C5=100; // Number of channels
+A5=80.9; // Total traffic intensity from Erlangs B chart
+U5=round(A5/Au); // Number of users
+
+// Displaying the result in command window
+printf('\n Total number of users for 1 channel = %0.0f',U1);
+printf('\n Total number of users for 5 channel = %0.0f',U2);
+printf('\n Total number of users for 10 channel = %0.0f',U3);
+printf('\n Total number of users for 20 channel = %0.0f',U4);
+printf('\n Total number of users for 100 channel = %0.0f',U5);
diff --git a/3542/CH3/EX3.5/3_5.jpg b/3542/CH3/EX3.5/3_5.jpg Binary files differnew file mode 100644 index 000000000..adc324b50 --- /dev/null +++ b/3542/CH3/EX3.5/3_5.jpg diff --git a/3542/CH3/EX3.5/Ex3_5.sce b/3542/CH3/EX3.5/Ex3_5.sce new file mode 100644 index 000000000..2e3bb9fab --- /dev/null +++ b/3542/CH3/EX3.5/Ex3_5.sce @@ -0,0 +1,50 @@ +// Example 3.5
+// To find number of users for a)system A b)system B c)system C
+// Page No.83
+
+clc;
+clear;
+
+// Given data
+GOS=0.02; // Grade of Service (Probability of bloacking)
+lamda=2; // Average calls per hour
+H=(3/60); // Call duration in seconds
+
+Au=lamda*H; // Traffic intensity per user
+
+// a)To find number of users for System A
+C1=19; // Number of channels used
+A1=12; // Traffic intensity from Erlang B chart
+U1=round(A1/Au); // Number of users per cell
+cells1=394;
+TU1=U1*cells1; // Total number of users
+MP1=TU1/(2*10^6)*100; // Market penetration percentage
+
+// b)To find number of users for System B
+C2=57; // No. of channels used
+A2=45; // Traffic intensity from Erlang B chart
+U2=round(A2/Au); // Number of users per cell
+cells2=98;
+TU2=U2*cells2; // Total no. of users
+MP2=TU2/(2*10^6)*100; // Market penetration percentage
+
+// c)To find number of users for System C
+C3=100; // Number of channels used
+A3=88; // traffic intensity from Erlang B chart
+U3=round(A3/Au); // Number of users per cell
+cells3=49;
+TU3=U3*cells3; // Total no. of users
+MP3=TU3/(2*10^6)*100; // Market penetration percentage
+
+TU=TU1+TU2+TU3; // Total number of users in all 3 systems
+MP=TU/(2*10^6)*100; // Combined Market penetration percentage
+
+// Displaying the result in command window
+printf('\n Total number of users in system A = %0.0f',TU1);
+printf('\n The percentage market penetration of system A = %0.2f',MP1);
+printf('\n \n Total number of users in system B = %0.0f',TU2);
+printf('\n The percentage market penetration of system B = %0.3f',MP2);
+printf('\n \n Total number of users in system C = %0.0f',TU3);
+printf('\n The percentage market penetration of system C = %0.3f',MP3);
+printf('\n \n Total number of users in all 3 systems = %0.0f',TU);
+printf('\n The combined Market penetration percentage of all systems = %0.3f',MP);
diff --git a/3542/CH3/EX3.6/3_6.jpg b/3542/CH3/EX3.6/3_6.jpg Binary files differnew file mode 100644 index 000000000..8430dded5 --- /dev/null +++ b/3542/CH3/EX3.6/3_6.jpg diff --git a/3542/CH3/EX3.6/Ex3_6.sce b/3542/CH3/EX3.6/Ex3_6.sce new file mode 100644 index 000000000..70897f8ae --- /dev/null +++ b/3542/CH3/EX3.6/Ex3_6.sce @@ -0,0 +1,62 @@ +// Example 3.6
+// To find a)Number of cells in given area b)Number of channels/cell c)Traffic intensity per cell d)Maximum carried traffic e)Total number of users for 2% GOS f) Number of mobiles per unique channel g)Maximum number of users could be served at one time
+// Page No.84
+
+clc;
+clear;
+
+// Given data
+Area=1300; // Total coverage area in m^2
+R=4; // Radius of cell in m
+N=7; // Frequecy reuse factor
+S=40*10^6; // Allocated spectrum in Hz
+Ch=60*10^3; // Channel width in Hz
+
+// a)Number of cells
+CA=2.5981*R^2; // Area of hexagonal cell in m^2
+Nc=round(Area/CA); // Number of cells
+
+// Displaying the result in command window
+printf('\n Number of cells in given system = %0.0f cells',Nc);
+
+// b)Number of channels/cell
+C1=round(S/(Ch*N)); // Number of channels
+
+// Displaying the result in command window
+printf('\n \n Number of channels per cell in given system = %0.0f channels/cell',C1);
+
+// c) Traffic intensity per cell
+C1=95; // Number of channels from b)
+GOS=0.02; // Grade of service
+A=84; // Traffic intensity from Erlang B chart
+
+// Displaying the result in command window
+printf('\n \n Traffic intensity in given system = %0.0f Erlangs/cell',A);
+
+// d)Maximum carried traffic
+traffic=Nc*A; // Maximum carried traffic
+
+// Displaying the result in command window
+printf('\n \n Maximum carried traffic in given system = %0.0f Erlangs',traffic);
+
+// e)Total number of users for 2% GOS
+trafficperuser=0.03; // Given traffic per user
+U=traffic/trafficperuser; // Total number of users
+
+// Displaying the result in command window
+printf('\n \n Total number of users = %0.0f users',U);
+
+// f) Number of mobiles per unique channel
+C=666; // Number of channels
+mobilesperchannel=round(U/C); // Number of mobiles per unique channel
+
+// Displaying the result in command window
+printf('\n \n Number of mobiles per unique channel = %0.0f mobiles/channel',mobilesperchannel);
+
+// g)Maximum number of users could be served at one time
+printf('\n \n Theoretically maximum number of served mobiles is the number of available channels in the system.')
+C=C1*Nc; // Maximum number of users could be served at one time
+
+// Displaying the result in command window
+printf('\n Theoretical Maximum number of users could be served at one time = %0.0f users',C);
+disp('It is 3.4% of customer base.');
diff --git a/3542/CH3/EX3.7/3_7.jpg b/3542/CH3/EX3.7/3_7.jpg Binary files differnew file mode 100644 index 000000000..46a220b71 --- /dev/null +++ b/3542/CH3/EX3.7/3_7.jpg diff --git a/3542/CH3/EX3.7/Ex3_7.sce b/3542/CH3/EX3.7/Ex3_7.sce new file mode 100644 index 000000000..b62dc2650 --- /dev/null +++ b/3542/CH3/EX3.7/Ex3_7.sce @@ -0,0 +1,40 @@ +// Example 3.7
+// To find a)number of users per square km b)probability that delayed call have to wait longer than t=10sec c)probability that call is delayed more than 10 sec
+// Page 85
+
+clc;
+clear;
+
+// Given data
+R=1.387; // Radius of cell in m
+Area=2.598*R^2; // Area of hexagonal cell in m^2
+cellpercluster=4; // Number of cells/cluster
+channels=60; // Number of channels
+
+channelspercell=channels/cellpercluster; // Number of channels per cell
+
+// a)To find number of users per square km
+A=0.029; // Traffic intensity per user
+delayprob=0.05; // Grade of service
+traffic=9; // Traffic intensity from Erlang chart C
+U1=traffic/A; // Total number of users in 5sq.km.
+U=round(U1/Area); // Number of users per square km
+
+// Displaying the result in command window
+printf('\n Number of users per square km in given system = %0.0f users/sq km',U);
+
+// b)To find the probability that delayed call have to wait longer than t=10sec
+lambda=1; // Holding time
+H1=A/lambda; // Duration of call
+H=H1*3600; // Duration of call in second
+t=10;
+Pr=exp(-(channelspercell-traffic)*t/H)*100; // probability that delayed call have to wait longer than t=10sec.
+
+// Displaying the result in command window
+printf('\n \n Percentage of probability that delayed call have to wait longer than t=10 sec = %0.2f percent',Pr);
+
+// c)To find the probability that call is delayed more than 10 sec
+Pr10=delayprob*Pr; // probability that call is delayed more than 10 sec
+
+// Displaying the result in command window
+printf('\n \n Percentage of probability that call is delayed more than 10 sec = %0.2f percent',Pr10);
diff --git a/3542/CH3/EX3.8/3_8.jpg b/3542/CH3/EX3.8/3_8.jpg Binary files differnew file mode 100644 index 000000000..05ce9465a --- /dev/null +++ b/3542/CH3/EX3.8/3_8.jpg diff --git a/3542/CH3/EX3.8/Ex3_8.sce b/3542/CH3/EX3.8/Ex3_8.sce new file mode 100644 index 000000000..5e9a42e42 --- /dev/null +++ b/3542/CH3/EX3.8/Ex3_8.sce @@ -0,0 +1,30 @@ +// Example 3.8
+// To find number of channels in 3 km by 3 km square centered around A in Figure 3.9 for a)without use of microcell b)with the use of lettered microcells c)all base stations are replaced by microcells
+// Page 89
+
+clc;
+clear;
+
+// Given data
+R=1; // Cell radius in km
+r=0.5; // Micro-cell radius in km
+Nc=60; // Number of channels in base station
+
+// a)To find number of channels without use of microcell
+Nb1=5; // Number of base stations in given area
+N1=Nb1*Nc; // Number of channels without use of microcell
+
+// b)To find number of channels with the use of lettered microcells
+Nb2=6; // Number of lettered microcells
+Nb2=Nb1+Nb2; // Total number of base stations in given area
+N2=Nb2*Nc; // Number of channels with the use of lettered microcells
+
+// c)To find number of channels if all base stations are replaced by microcells
+Nb3=12; // Number of all the microcells
+Nb3=Nb1+Nb3; // Total number of base stations in given area
+N3=Nb3*Nc; // Number of channels if all base stations are replaced by microcells
+
+// Displaying the result in command window
+printf('\n Number of channels without use of microcell = %0.0f channels',N1);
+printf('\n \n Number of channels with the use of lettered microcells = %0.0f channels',N2);
+printf('\n \n Number of channels if all base stations are replaced by microcells = %0.0f channels',N3);
diff --git a/3542/CH3/EX3.9/3_9.jpg b/3542/CH3/EX3.9/3_9.jpg Binary files differnew file mode 100644 index 000000000..2856ac325 --- /dev/null +++ b/3542/CH3/EX3.9/3_9.jpg diff --git a/3542/CH3/EX3.9/Ex3_9.sce b/3542/CH3/EX3.9/Ex3_9.sce new file mode 100644 index 000000000..fa6663ef6 --- /dev/null +++ b/3542/CH3/EX3.9/Ex3_9.sce @@ -0,0 +1,29 @@ +// Example 3.9
+// To analyze trunking efficiency capacity of sectoring and unsectoring
+// Page 92
+
+clc;
+clear all;
+
+// Given data
+H=2/60; // Average call duration in hour
+GOS=0.01; // Probability of blocking
+
+// Unsectored system
+C1=57; // Number of traffic channels per cell in unsectored system
+A=44.2; // Carried traffic in unsectored system
+calls1=1326; // Number of calls per hour in unsectored system from Erlangs B table
+
+// 120 degree sectored system
+C2=C1/3; // Number of traffic channels per antenna sector in 120 degree sectored system
+calls2=336; // Number of calls per hour in 120 degree sectored system from Erlangs B table
+Ns1=3; // Number of sectors
+capacity=Ns1*calls2; // Cell capacity or number of calls handled by system per hour
+
+dif=calls1-capacity; // decrease in cell capacity in 120 degree sectored system
+percentdif=(dif/calls1)*100; // decrease in cell capacity in 120 degree sectored system in percentage
+
+// Displaying the result in command window
+printf('\n Cell capacity of unsectored system = %0.0f calls/hour',calls1);
+printf('\n \n Cell capacity of 120 degree sectored system = %0.0f calls/hour',capacity);
+printf('\n \n Decrease in cell capacity in 120 degree sectored system = %0.0f percent',percentdif);
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