What is the exam pattern and passing mark for GTU Mobile Computing and Wireless Communication (2170710)?

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 2170710 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 2170710 Mobile Computing and Wireless Communication Summer 2025 Question Paper & PDF

B.E. · Computer Engineering · Semester 7 · Subject code 2170710

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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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Q.1

14 Marks

(a)

3 marks

Explain data rate and bandwidth?

(b)

4 marks

Enlist and Explain the different modulation techniques in the signal theory.

(c)

7 marks

Explain the Nyquist Theorem. Find the relationship among the following terms: Channel Capacity (C), Bandwidth (B) and Signal-to-Noise Ratio (SNR).

Q.2

14 Marks

(a)

3 marks

What is noise? Discuss briefly types of noise and its effect on transmission signal.

(b)

4 marks

Consider parabolic reflective antenna with a diameter of 4 m, operating at 16 GHz, what is the effective area and antenna gain? (Hint: c= 3x10 8 )

(c)

7 marks

A TDMA/FDD based GSM system uses 25 MHz for the forward link, which is broken in to radio channels of 200 KHz. If 8 speech channels are supported on a single radio channel and if no guard band is assumed, find the no of simultaneous users that can be accommodated in GSM.

(c)

7 marks

What are HLR and VLR? Describe its functions in call routing and roaming.

Q.3

14 Marks

(a)

3 marks

Define IMSI, IMEI and MS-ISDN and write their use.

(b)

4 marks

Explain OSI model with function of each layer.

(c)

7 marks

What is the bandwidth efficiency for FSK, ASK, PSK and QPSK for a bit error rate of 10⁻⁷ on a channel with an SNR of 12 dB?

(a)

3 marks

Explain frequency reuse in cellular systems with a proper diagram.

(b)

4 marks

Demonstrate the functioning of a convolutional encoder for (2,1,3) and also implement its state diagram.

(c)

7 marks

What is the circuit switching? Explain the communication phases of circuit switching. Differentiate between Datagram and Virtual circuit operation?

Q.4

14 Marks

(a)

3 marks

Explain ATM Service categories.

(b)

4 marks

What is the need for ARQ? Explain Sliding Window Protocol with example.

(c)

7 marks

What is Mobile IP? Explain discovery, registration and tunneling in Mobile IP.

(a)

3 marks

Write a note on piconet and scatternet.

(b)

4 marks

For Message M = 1010001101 and Pattern P = 110101, find CRC.

(c)

7 marks

Write a short note on selective repeat ARQ.

Q.5

14 Marks

(a)

3 marks

What is fading? Differentiate between:

afast and slow fading

bflat and selective fading

(b)

4 marks

Name different states of android activity life cycle.

(c)

7 marks

Define the Frequency Hopping in Spread Spectrum? Write a note on TDMA, FDMA and CDMA.

(a)

3 marks

What is Handover? Explain types of it in brief.

(b)

4 marks

Explain Android EditText and TextView control with an example.

(c)

7 marks

Draw and explain the Bluetooth Protocol Architecture.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Mobile Computing and Wireless Communication (Summer 2025, B.E. · Computer 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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