Q.1
14 Marks(c)
Explain type of generation (3G, 4G and 5G) used in wireless system with its advantages and disadvantages.
Gujarat Technological UniversityWinter 2025 examination
GTU 3171608 Wireless Communication Winter 2025 Question Paper & PDF
B.E. · IT Engineering · Semester 7 · Subject code 3171608
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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13 of 25 questions on this paper were also asked in other years. 1 more is a type of question GTU sets again with new data. Each is marked below with the years it appeared.See all 17 repeated 3171608 questions, most asked first
Q.2
14 Marks(b)
Define following terms:
1)Page,
2)Half-duplex systems,
3)Cluster
4)Transceiver
(c)
Discuss the fixed channel allocation, Channel borrowing and dynamic channel allocation techniques in cellular systems.
OR
(c)
Explain how we increase cluster size and cell capacity in cellular network.
Also asked in Summer 2025 Q2a, Summer 2025 Q5c
Q.3
14 Marks(c)
A spectrum of 33 MHz is allocated to a wireless FDD cellular system which uses two 25 kHz simplex channels to provide full duplex voice and control channels. Compute the number of channels available per cell if a system uses
i)4-cell reuse
ii)7-cell reuse and
iii)12-cell reuse.
Also asked in Summer 2026 Q2c, Summer 2026 Q2c OR, Summer 2025 Q2c
OR
(a)
Illustrate the concept of diffraction.
(b)
Briefly explain different types of propagation models.
(c)
List out various outdoor propagation models & explain any one in brief.
Q.4
14 Marks(c)
What is ZigBee? Explain in details ZigBee networks using suitable diagrams.
Also asked in Summer 2025 Q5a
OR
(a)
Define: 1-persistent CSMA, non-persistent CSMA, p-persistent CSMA.
(b)
Illustrate TDMA scheme with necessary equations.
Q.5
14 Marks(a)
Explain the concept of RAKE receiver in CDMA.
(b)
Differentiate: CDMA technology and GSM technology.
(c)
Define GPRS. Explain it with its architecture.
Also asked in Summer 2026 Q3c OR, Summer 2025 Q4c OR
OR
(a)
Define following terms:
1)BSC,
2)MSC
3)VLR
(c)
Write Short note on Security issues and challenges in a Wireless network.
Also asked in Summer 2025 Q5a OR
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About this paper
Official Gujarat Technological University (GTU) examination paper for Wireless Communication (Winter 2025, B.E. · IT Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.