00:01
Hello students, in this question we have the four individual questions.
00:05
So first the radio capacity may be increased in cellular concept by increasing the radio spectrum.
00:14
You have two options both a and b are correct.
00:17
So it can you can increase the radio spectrum like more available frequency bands will allow more simultaneous connections and higher data transfer rate.
00:25
You can increase the number of base station which is you're using the channel so you can by dividing the coverage area into smaller cells and reusing the same frequencies more users can be accommodated.
00:39
So both a and b are there.
00:42
So c is the correct answer.
00:44
Now coming to the second one in gsm the interference between neighborhood base stations are avoided by assigning different group channels.
00:53
So each base station is assigned by a unique set of channels to minimize the interference between neighboring cells.
00:59
You can also use transmitters with different power levels.
01:03
This will reduce the difference as well.
01:06
If you use directional antennas which can be employed right it will focus the signal in specific direction.
01:12
So this will reduce the interference.
01:15
So the correct option is d all the above...