What is the exam pattern and passing mark for GTU Wireless Communication (3171608)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

Where can I download the official GTU 3171608 Summer 2025 question paper PDF?

The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversitySummer 2025 examination

GTU 3171608 Wireless Communication Summer 2025 Question Paper & PDF

B.E. · IT Engineering · Semester 7 · Subject code 3171608

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Total: 70 marks
To pass: 23 marks (33%)
Duration: 2.5 Hours 2:30 PM – 5:00 PM
Questions: 5 with internal choice

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14 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.1

14 Marks

(a)

3 marks

Give a brief on Wireless Local Loop (WLL).

(b)

4 marksAsked in 2 of 3 papers

List out and discuss the evolution of different generations of wireless communication.

Also asked in Winter 2025 Q1a

(c)

7 marks

Draw Bluetooth Protocol Architecture stack and demonstrate each protocol in details.

Q.2

14 Marks

(a)

3 marksAsked in 2 of 3 papers

List out the techniques to improve coverage and channel capacity in cellular systems?

Also asked in Winter 2025 Q2c OR

(b)

4 marksAsked in 2 of 3 papers

Distinguish between soft handoff and hard handoff.

Also asked in Summer 2026 Q5c

(c)

7 marksSame type asked in 3 of 3 papers

If a signal-to-interference ratio of 15 dB is required for satisfactory forward channel performance of a cellular system, what is the frequency reuse factor and cluster size that should be used for maximum capacity if the path loss exponent is (a) n = 4, (b) n = 3? Assume that there are six co-channel cells in the first tier, and all of them are at the same distance from the mobile. Use suitable approximations.

Also asked in Summer 2026 Q2c, Summer 2026 Q2c OR, Winter 2025 Q3c

(c)

7 marks

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:

adirectly towards the transmitter

bdirectly away from the transmitter

cIn a direction which is perpendicular to the direction of arrival of the transmitted signal.

Q.3

14 Marks

(a)

3 marksAsked in 2 of 3 papers

Why the hexagon is used as a cell shape?

Also asked in Winter 2025 Q2a

(b)

4 marksAsked in 2 of 3 papers

Differentiate: FDMA and OFDM.

Also asked in Winter 2025 Q4c OR

(c)

7 marks

List the factors influencing small scale fading and explain the factors.

(a)

3 marks

Give the equation for average large scale-path loss between the transmitter and receiver as a function of distance.

(b)

4 marks

How cell splitting is different from cell sectorization?

(c)

7 marks

Explain in details: Cellular network architecture.

Q.4

14 Marks

(a)

3 marks

Assume a receiver is located 10 km from a 50 W transmitter. The carrier frequency is 6 GHz and free space propagation is assumed, Gt = 1 and Gr = 1. Find the power at the receiver in dbm.

(b)

4 marksAsked in 2 of 3 papers

Explain briefly on CSMA Protocols.

Also asked in Winter 2025 Q4a

(c)

7 marksAsked in 2 of 3 papers

With the help of neat sketch, describe GSM Architecture.

Also asked in Summer 2026 Q3c

(a)

3 marks

A mobile is located 5 km away from a base station and uses an antenna with a gain of 2.55 dB to receive cellular radio signals. Suppose transmitted power is 1 watt, find the received power at the mobile using the 2-ray ground reflection model.

(b)

4 marksAsked in 2 of 3 papers

Discuss about IEEE 802.11.

Also asked in Winter 2025 Q1b

(c)

7 marksAsked in 3 of 3 papers

With the help of neat sketch, describe GPRS Architecture.

Also asked in Summer 2026 Q3c OR, Winter 2025 Q5c

Q.5

14 Marks

(a)

3 marksAsked in 2 of 3 papers

Explain: zigbee technology

Also asked in Winter 2025 Q4c

(b)

4 marksAsked in 3 of 3 papers

What are the main differences between WiFi and WiMAX?

Also asked in Summer 2026 Q5b, Winter 2025 Q5b OR

(c)

7 marksAsked in 2 of 3 papers

Explain various methods to increase system capacity of a cellular network.

Also asked in Winter 2025 Q2c OR

(a)

3 marksAsked in 2 of 3 papers

Give a brief on Security issues in a Wireless network.

Also asked in Winter 2025 Q5c OR

(b)

4 marks

Explain in detail about Advantages and disadvantages of Wireless Adhoc Networks.

(c)

7 marksAsked in 2 of 3 papers

Describe how UWB radio functions, including its characteristics, benefits, and drawbacks.

Also asked in Summer 2026 Q5c OR

More Wireless Communication papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions · Solved

Winter 202570 marks · 5 questions

Other Semester 7 subjects

BE IT

2171607

Big Data Analytics

3171609

Software Project Management

3171610

Agile Development and UI/UX design

3171611

Graph Theory and Combinatorics

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About this paper

Official Gujarat Technological University (GTU) examination paper for Wireless Communication (Summer 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.

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