From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3446/CH17/EX17.11/Ex17_11.sce | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 3446/CH17/EX17.11/Ex17_11.sce (limited to '3446/CH17/EX17.11/Ex17_11.sce') diff --git a/3446/CH17/EX17.11/Ex17_11.sce b/3446/CH17/EX17.11/Ex17_11.sce new file mode 100644 index 000000000..bd2c6334e --- /dev/null +++ b/3446/CH17/EX17.11/Ex17_11.sce @@ -0,0 +1,28 @@ +// Exa 17.11 +// To calculate average throughput and compare it with equal latency condition. + +clc; +clear all; + +P1=1/2;//relative frequency of packets for user class1 +P2=1/3;//relative frequency of packets for user class2 +P3=1/6;//relative frequency of packets for user class3 +R1=16; //data rate in kbps for P1 +R2=64; //data rate in kbps for P2 +R3=1024; //data rate in kbps for P3 +S1=16;//number of slots assigned to the R1 user +S2=8;//number of slots assigned to the R2 user +S3=2;//number of slots assigned to the R3 user + +//solution +//Using Equation 17.20 from page no 616 +Ravg=(P1*R1*S1+P2*R2*S2+P3*R3*S3)/(P1*S1+P2*S2+P3*S3); +// For equal latency, using Eq 17.18 +Rav=1/(P1/R1+P2/R2+P3/R3); +// For Latency ratio=4, using Eq 17.19 from page no 616 +PL=4; +C=(P1+P2+PL*P3)/(P1/R1+P2/R2+P3/R3); +printf('The average throughput for equal access condition is %.1f kbps \n ',Ravg); +printf('The average throughput by considering equal latency is %.1f kbps \n ',Rav); +printf('The average throughput by considering latency ratio as 4 is %.2f kkbps \n ',C) +disp("Ii is observed that equal access provides the highest average output") -- cgit