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+// Exa 17.5
+// To calculate uplink cell load factor, number of voice users and poll capacity of the cell.
+
+clc;
+clear all;
+
+Ri=12.2*10^3;//Information rate in bps
+Rc=3.84*10^6;//Chip rate in cps(chips per second)
+Eb_Nt=4;  //in dB
+Imargin=2;  //Interference margin(3 dB)
+B=0.5;//Interference factor due to other cells
+Vi=0.65;//Channel activity factor
+
+//solution
+Eb_Ntreqd=10^(Eb_Nt/10);
+LF_peruser=(1+B)*(1/(1+(Rc/Ri)*(1/Eb_Ntreqd)*(1/Vi)));  //M(no of users=1) in Eq 17.13
+printf("Cell load factor per voice user is %.5f \n ',LF_peruser);
+CellLoading=(Imargin-1)/Imargin;
+VoiceUsers=CellLoading/LF_peruser;
+printf('No of Voice Users are %d per cell \n ',VoiceUsers);
+//From EQ 17.6 assuming Power control efficiency=1
+Polecap=Rc/(Ri*Vi*(1+B)*Eb_Ntreqd);
+printf('Pole Capacity is %d \n',Polecap);