Mobile Communication Test Questions Start Creating PDF

MCQ: The techniques used for small scale multipath measurements are

1. Direct RF pulse system
2. Spread spectrum sliding correlator channel sounding
3. Frequency domain channel sounding

1. 1 and 2 are correct
2. 1 and 3 are correct
3. 2 and 3 are correct
4. All the three are correct

MCQ: Direct RF pulse system helps in calculating

1. Impulse response in frequency domain
2. Impulse response in phase domain
3. Power delay of the channel
4. All of the above

MCQ: The received signal from a multipath channel is expressed as

1. Convolution of transmitted signal and impulse response
2. Addition of transmitted signal and impulse response
3. Subtraction of transmitted signal and impulse response
4. All of the above
5. None of the above

MCQ: Impulse response of a multipath channel is determined by the fact that

1. Mobile radio channel may be modeled as linear filter
2. Impulse response is time varying
3. Both a & b
4. None of the above

MCQ: The effects of small scale multipath propagation are

1. Changes in signal strength
2. Random frequency modulation
3. Time dispersion

1. 1 and 2 are correct
2. 1 and 3 are correct
3. 2 and 3 are correct
4. All the three are correct

MCQ: Small scale multipath propagation is caused due to waves with

1. Different propagation delays
2. Different amplitudes
3. Different phase

1. 1 and 2 are correct
2. 1 and 3 are correct
3. 2 and 3 are correct
4. All the three are correct

MCQ: Coherence bandwidth is

1. Channel that passes all spectral components with equal gain
2. The bandwidth of modulated signal
3. Channel that passes all spectral components with linear phase
4. Both a and c
5. Both a and b

MCQ: The power delay profile helps in determining

1. Excess delay
2. rms delay spread
3. Excess delay spread
4. All of the above

MCQ: If coherence time of the channel is smaller than the symbol period of the transmitted signal, it is

1. Fast fading
2. Slow fading
3. Frequency selective fading
4. Frequency non selective fading

MCQ: In Frequency Selective Fading, the

1. Coherence Bandwidth of the channel is less than bandwidth of transmitted channel
2. Coherence Bandwidth of the channel is more than bandwidth of transmitted channel
3. Coherence Bandwidth of the channel is equal to bandwidth of transmitted channel
4. None of the above