1 files changed, 15 insertions, 0 deletions
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);