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+// Exa 11.8
+// To determine a possible pair of the SOFT-SLOPE and ADD-INTERCEPT values that will trigger the mobile station to send a PSMM to the base station and if the mobile station is IS-95 compliant, ﬁnd the value of T-COMP that could trigger the mobile station to generate a PSMM.
+
+clc;
+clear all;
+
+P1=-95; //pilot1 in dBm
+P2=-100; //pilot2 in dBm
+P3=-101; //pilot3 in dBm
+P4=-105; //pilot4 in dBm
+P5=-102; //pilot in dBm
+NoiseP=-107; //Receiver sensitivity(dBm)
+Tadd=-13; //dB
+
+//solution
+//Pcj = received power of the jth pilot in the candidate set
+// Pai= received power of the ith pilot in the active set 
+Pa1=P1-NoiseP;
+Pa2=P2-NoiseP;
+Pa3=P3-NoiseP;
+Pa4=P4-NoiseP;
+Pc5=P5-NoiseP;
+
+X=10*log10(10^(0.1*Pa1)+10^(0.1*Pa2)+10^(0.1*Pa3)+10^(0.1*Pa4)+10^(0.1*Pc5));   
+disp("Max {14.22 *(SOFT-SLOPE)+ (ADD-INTERCEPT),-13  }<=5");
+disp("Thus we have two equations as follows");
+disp("14.22*SOFT-SLOPE+ADD-INTERCEPT>=-13 and");
+disp("14.22*SOFT-SLOPE+ADD-INTERCEPT<=5");
+disp(" Solving these equations, we get SOFT-SLOPE= 0.5 and ADD-INTERCEPT=-4");
+disp("For an IS-95-compliant mobile station (Pcj-Pai)>=0.5*T-COMP");
+disp("Since P1>P2>P3>P4, we replace P4");
+T_COMP=(P5-P4)/0.5;
+disp("");
+printf('The value of T-COMP that could trigger the mobile station to generate a PSMM should be <= %d dB (<= %d) .\n ',T_COMP,round(10^(0.1*T_COMP)));
+