Simulation ALOHA in C++

Well I need to simualte the Slotted and Pure ALOHA protocol using C++

so I need to know the parameters and metrics

so any one has knowledge or knows any site for that??

Thank u very much

Slotted ALOHA Simulation Parameters

//

// global simulation parameters
//

sim
logfile truncate
checkpoint-variant slots // frame, slots or
milleseconds

end
//
// model 1 definition
//
model 1
slot 1 // packet slot size
in Mb
packet-slots 1
channel 1000 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end
model 2
slot 1 // packet slot size
in Mb
packet-slots 1
channel 1050 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 3
slot 1 // packet slot size in Mb
packet-slots 1
channel 1100 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 4
slot 1 // packet slot size in Mb
packet-slots 1
channel 1150 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 5
slot 1 // packet slot size in Mb
packet-slots 1
channel 1200 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 6
slot 1 // packet slot size in Mb
packet-slots 1
channel 1250 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 7
slot 1 // packet slot size in Mb
packet-slots 1
channel 1300 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 8
slot 1 // packet slot size in Mb
packet-slots 1
channel 1350 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 9
slot 1 // packet slot size in Mb
packet-slots 1
channel 1400 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 10
slot 1 // packet slot size in Mb
packet-slots 1
channel 1450 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 11
slot 1 // packet slot size in Mb
packet-slots 1
channel 1500 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 12
slot 1 // packet slot size in Mb
packet-slots 1
channel 1550 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 13
slot 1 // packet slot size in Mb
packet-slots 1
channel 1600 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 14
slot 1 // packet slot size in Mb
packet-slots 1
channel 1650 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 15
slot 1 // packet slot size in Mb
packet-slots 1
channel 1700 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 16
slot 1 // packet slot size in Mb
packet-slots 1
channel 1750 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 17
slot 1 // packet slot size in Mb
packet-slots 1
channel 1800 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 18
slot 1 // packet slot size in Mb
packet-slots 1
channel 1850 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 19
slot 1 // packet slot size in Mb
packet-slots 1
channel 1900 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

model 20
slot 1 // packet slot size in Mb
packet-slots 1
channel 1950 // channel speed in Mb/sec
protocol SALOHA
time 1000000
checkpoint-interval 1
log yes
trace no
end

ALOHA PROTOCOL IN C

#include <stdio.h>
#include <math.h>
#include <time.h>
#include <dos.h>

#define FRAME_TIME 250

main()
{
float S1, S2, G, J, val[100] ;
int I, n, K, delay ;
void wait() ;
clrscr() ;
printf("Please Give the Total Load : ");
scanf("%d", &n);
printf("Please Enter the value of load \n");
for (I=0; I<n; I++)
{
scanf("%f", &val[I]);
}
clrscr();
printf("\nOUTPUT 1: (THROUGHPUT Vs LOADCURVE)\n\n");
printf("s=g*exp(-G) FOR SLOTTED ALOHA * \n");
printf("s=g*exp(-2G) FOR PURE ALPHA #\n");
printf("\n------ (THROUGHPUT PER FRAME TIME)----\n");
for(K=0; K<n; K++)
{
G=val[K];
S1 = G * exp (-G);
S2 = G * exp(-2 * G);
printf("%1.3f", G );
for (I=0; I <=S1*20; I++)
{
printf(" ");
}
printf("*");
for(I=S2*20; I<=S2*75; I++ )
{
printf(" ");
}
printf("#\n");
}
printf("G (ATTEMPTS PER PACKET TIME) \n\n");
wait() ;
getch() ;
clrscr() ;
printf("\nOUTPUT 2 (DELAY Vs THROUGHPUT) \n\n");
printf("\n-----(THOUGHPUT PER FRAME TIME)----\n");
for(K=0; K<n; K++)
{
G=val[K];
S1 = G * exp (-G);
printf("3");
for (I=0; I <=S1*2.7; I++)
{
printf(" ");
}
printf("*\n");
}
printf("\n");
printf("---- DELAY -----");
wait();
getch();
clrscr();
}

void wait()
{
sound(440);
delay(300);
nosound();
}

OUTPUT of (THROUGHPUT V/S LOADCURVE)

s=g*exp(-G) FOR SLOTTED ALOHA *

s-g*exp(-2G) FOR PURE ALPHA #



-----------(THROUGHPUT PER FRAME TIME) ----->

0.0000003 * #

0.5000003 * #

1.0000003 * #

1.5000003 * #

2.0000003 * #

2.5000003 * #

3.0000003 * #

3.5000003 * #



G (ATTEMPTS PER PACKET TIME)







OUTPUT of (DELAY V/S THROUGHPUT)





------(THROUGHPUT PER FRAME TIME) ---->

3 *

3*

3*

3*

3*

3*

3*

3*

3*



--- DELAY------

hi
did u get the idea regarding ur project