diff options
Diffstat (limited to '2409/CH14/EX14.7/Ex14_7.sce')
| -rwxr-xr-x | 2409/CH14/EX14.7/Ex14_7.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/2409/CH14/EX14.7/Ex14_7.sce b/2409/CH14/EX14.7/Ex14_7.sce new file mode 100755 index 000000000..ce8a912ac --- /dev/null +++ b/2409/CH14/EX14.7/Ex14_7.sce @@ -0,0 +1,24 @@ + +//Variable Declaration + +T1=1.544 //Bit rate from sec.10.4(Mb/s) +R=62 //Bit rate from sec.10.4(dBMb/s) +EbN0R=12 //Required Eb/N0 ratio for uplink(dB) +LOSSES=212 //Transmission losses of uplink(dB) +GTR=10 //G/T ratio for earth station(dB/K) +G1=46 //Uplink antenna gain(dB) +Rd=74 //Downlink Transmission Rate(dBb/s) +//Calculation +CNR=EbN0R+R //Carrier to noise ratio for uplink(dB) +EIRP=CNR-GTR+LOSSES-228.6 //EIRP of earth station antenna +P=EIRP-G1 //Transmitted Power Required(dBW) +P=10**(P/(10)) //Transmitted Power Required(Watts) + +Ri=Rd-R //Rate increase with TDMA operation(dB) +P1=1.4+Ri //Uplink power increase required for TDMA operation(Watts) +P2=10**(P1/(10)) + +//Results +printf("Earth station transmission power required for transmission of T1 baseband signal is %.2f Watts",P) +printf("Uplink power increase required for TDMA operation is %f dBWatts or %.1f Watts",P1,P2) + |