diff options
Diffstat (limited to '3446/CH8/EX8.1')
| -rw-r--r-- | 3446/CH8/EX8.1/Ex8_1.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/3446/CH8/EX8.1/Ex8_1.sce b/3446/CH8/EX8.1/Ex8_1.sce new file mode 100644 index 000000000..625e0c86c --- /dev/null +++ b/3446/CH8/EX8.1/Ex8_1.sce @@ -0,0 +1,17 @@ +// Exa 8.1
+// To calculate coverage gain in dB.
+
+clc;
+clear all;
+
+Pdiff=-3; //in dB
+AMR1=12.2; //in kbps
+AMR2=7.95; //in kbps
+AMR3=4.75; //in kbps
+
+//solution
+//CG(dB)=10log{(DPDCH(kbps)+DPCCH)/(DPDCH(AMR bit rate (kbps))+ DPCCH)}
+CG1=10*log10((AMR1+AMR1*10^(Pdiff/10))/(AMR2+AMR1*10^(Pdiff/10)));
+CG2=10*log10((AMR1+AMR1*10^(Pdiff/10))/(AMR3+AMR1*10^(Pdiff/10)));
+printf('By reducing the AMR bit rate from 12.2 to 7.95 kbps coverage gain becomes %.2f dB \n ',CG1);
+printf('By reducing the AMR bit rate from 7.95 to 4.75 kbps coverage gain becomes %.2f dB \n ',CG2);
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