1- Define dopler shefft
The shift in received signal frequency due to motion
2- channel implies simultaneous two directional communication.
Full duplex
3- Co-channel reuse ratio depends upon
Radius of the cell
4- Coherence time refers to
Minimum time for change in magnitude and phase of the channel
5- Which one is not an advantage of using frequency reuse?
Number of base stations is reduced
6- The Advantage Of Using Frequency Reuse is
All of them
7- For the system having cochannel interference ratio S/I=63; path loss exponent γ=4 find
cochannel reuse factor q
Four.four
8- DOPPLER SHIFT IS DIRECTLY PROPORTIONAL TO
Velocity
9-
What is handoff?
Switching technique
10- FADING IS CAUSED DUE TO
All of them
11- Bandwidth of noiseless channel is 4 kHz. Signal is transmitted with 4 levels. What is the
maximum bit rate?
Sixteen
12- Fading of the received signals in a mobile communication environment occurs because of,
Multipath Propagation
13- How many users or voice channels are supported for each 200 KHz channel in GSM?
Eight
14- Which of the following is is not a characteristic of cellular telephone system
Large frequency spectrum