EC8652 Question Bank Wireless Communication
EC8652 Question Bank Wireless Communication Regulation 2017 Anna University free download. Wireless Communication Question Bank EC8652 pdf free download.
Sample EC8652 Question Bank Wireless Communication
(i) Categorize what are the factors that influence small-scale
fading.
(ii) Consider a transmitter which radiates a sinusoidal carrier
frequency of 1850 MHz. For a vehicle moving 60 mph,
compute the received carrier Frequency if the mobile is
moving directly toward the transmitter.
(iii) Given that the coherence bandwidth is approximated by
equation . Demonstrate that a flat fading channel
occurs when Ts≥10στ.
EC8652 Question Bank Wireless Communication
Classify the small scale fading in wireless channel based on
multipath time delay spread and explain its features.
(13)
BTL 2 Understanding
12
Illustrate the types of fading experienced by the signal as a
function of symbol period (Ts ) and baseband signal bandwidth
(Bs)
(13)
BTL 2 Understanding
13
Explain the distribution that describes the statistical time
varying behavior of the received signal in mobile radio
channel.
EC8652 Question Bank Wireless Communication
(i) Discuss in detail about fast fading and slow fading in
wireless channel.
(ii) Summarize the effects of fading.
Evaluate the method to assess why large-scale and small-scale
fading occur in wireless systems. Justify the statement “In
practice fast fading only occurs for very low data rate
communication”.
EC8652 Question Bank Wireless Communication
(i) Determine the proper spatial sampling interval required to
make small-scale propagation measurements which assume
that consecutive samples are highly correlated in time. How
many samples will be required over 10m travel distance if fc
=1900 MHz and v=50m/s. How long would it take to make
these measurements, assuming they could be made in real time
from a moving vehicle? What is the Doppler spread BD for the
channel?
(ii) Formulate the parameters of mobile multipath channels
with their significance.
(7)
(8)
BTL 6 Creating
| Subject name | Wireless Communication |
| Short Name | WLC |
| Semester | 6 |
| Subject Code | EE8652 |
| Regulation | 2017 regulation |
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