blob: 8f8ecf94ef7e9189ece36a023a3433915bfa675e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
// Exa 6.3
// To calculate spectral efficiency of TDMA.
clc;
clear all;
Tf=40; //Frame duration in msec
Mt=6; // Frames per slot
Bu=30; //bandwidth(KHz) of an individual user during his or her time slot
Nu=395;// number of users sharing the same time slot in the system, but having access to different frequency sub-bands
Bw=12.5; // in MHz
DR=16.2;//Data rate in kbps
FDur=40; // Frame duration in msec
slots=6; //No of slots per time frame
IndiRate=16.2; //Individual data rate in kbps
Srate=13; //Speech rate in kbps
//solution
TimeSlot=(Srate/IndiRate)*(FDur/slots);
Seff=TimeSlot*slots*Bu*Nu/(FDur*Bw*1000);
printf('Multiple access spectral efficiency of TDMA is %.2f\n ',Seff);
printf('The overhead portion of the frame is %d percent \n ',round((1-Seff)*100));
|
