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/CH21/EX21.9/Ex21_9.sce | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 3446/CH21/EX21.9/Ex21_9.sce

(limited to '3446/CH21/EX21.9/Ex21_9.sce')

diff --git a/3446/CH21/EX21.9/Ex21_9.sce b/3446/CH21/EX21.9/Ex21_9.sce
new file mode 100644
index 000000000..dcb3a6eaa
--- /dev/null
+++ b/3446/CH21/EX21.9/Ex21_9.sce
@@ -0,0 +1,15 @@
+// Exa 21.9
+// To calculate rmax for the interference scenarios (see Figure 21.21) using Smin from Example 21.8.
+
+clc;
+clear all;
+
+SIRmin=21.6; //From eg 21.8 i.e(13.36 dB)
+d=10; //distance between AP and IEEE 802.11 device in m
+PMs=40; // transmitted power of the IEEE 802.11 device in dBm
+PBt=20; //the transmitted power by the BT in dBm
+Y=4 ; //path loss exponent
+
+//solution
+rmax=d*(SIRmin*PMs/PBt)^(1/Y);
+printf('Maximum coverage range is %.1f metres \n',rmax);
-- 
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