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EC8652 Important Questions Wireless Communication Regulation 2017 Anna University

EC8652 Important Questions Wireless Communication

EC8652 Important Questions Wireless Communication Regulation 2017 Anna University free download. Wireless Communication Important Questions EC8652 pdf free download.

Sample EC8652 Important Questions Wireless Communication

1
How to relate the signal propagation against free space
attenuation and reflection and describe in detail about two ray
propagation mechanisms.
(13)
BTL 1 Remembering
2
(i) Explain in brief about the three propagation mechanisms.
(ii) Write the impact on propagation in a mobile environment.
(6)
(7)
BTL 1 Remembering
3
(i) Identify the advantages and disadvantages of the two-ray
ground reflection model in the analysis of path loss.
(ii) Examine the following cases and solve whether the
two-ray model could be applied or not:
Case (i) h1 = 35m , hr = 3m, d = 250m
Case (ii) h1 = 30m , hr= 1.5m , d = 450m
EC8652 Important Questions Wireless Communication
Assume if a transmitter produces 50W of power, express the
transmit power in units of dBm and dBW. If 50W is applied
to a unity gain antenna with a 900 MHz carrier frequency,
find the received power in dBm at a free space distance of
100m from the antenna also justify the analytical expression
by computing the the received power at 10km.
EC8652 Important Questions Wireless Communication
Explain the characteristics of time dispersive channels and find
the far field distance for an antenna with maximum dimension
of 1m and operating frequency of 500 MHz.
(13)
BTL 4 Analyzing
6
(i) Explain fading effects due to multipath time delay spread
and fading effects due to Doppler spread?
(ii) List the factors influencing small scale fading and explain
the factors.
EC8652 Important Questions Wireless Communication
(i) Summarize the following
(a) Doppler shift,
(b) Doppler spread,
(c) Coherence time.
(ii) Calculate the Doppler spread if the carrier frequency is
1900 MHz and velocity is 50 m/s.

Subject name Wireless Communication
Short Name WLC
Semester 6
Subject Code EE8652
Regulation 2017 regulation

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