Download GTU B.Tech 2020 Winter 7th Sem 2170710 Mobile Computing And Wireless Communication Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER-VII (NEW) EXAMINATION — WINTER 2020

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Subject Code:2170710 Date:25/01/2021
Subject Name:Mobile Computing and Wireless Communication
Time:10:30 AM TO 12:30 PM Total Marks: 56

Instructions:

1. Attempt any FOUR questions out of EIGHT questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define Channel capacity. What is Shannon’s capacity formula for noisy channel? 03
(b) List and explain the types of antenna in wireless network with their applications. 04
(c) Compare LAN, MAN and WAN with proper diagram. 07

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Q.2 (a) Describe Wireless application protocol. 03
(b) Classify Guided and Unguided media. Show the use of Guided media in real world. 04
(c) Define Mobile IP. Explain Agent discovery, Registration and Data transfer in Mobile IP. 07

Q.3 (a) List and explain functionality of Serving GPRS Support Node(SGSN) and Gateway GPRS Support Node(GGSN). 03
(b) What are the common layouts available in Android? Elaborate any two layouts. 04

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(c) Define Radio propagation. List and explain propagation modes. 07

Q.4 (a) Classify and express Services provided by IEEE 802.11. 03
(b) When Hidden station and Exposed station problem arise in wireless 04
(c) Draw and explain GSM architecture. 07

Q.5 (a) Define and explain Android Framework. 03

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(b) Show the use of below-GSM Identifiers. 04
1) IMET i) IMSI ii) MSISDN iv) MSRN
(c) Explain Amplitude shift keying(ASK), Frequency shift keying(FSK) and Phase shift keying(PSK) in digital-to-analog conversion. 07

Q.6 (a) Justify, Why Hexagon cell shape is used in cellular network? 03
(b) Define Handover. List and explain the types of handover. 04

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(c) Draw and explain Bluetooth protocol stack. 07

Q.7 (a) State the difference between Ad hoc and Infrastructure network. 03
(b) Explain Extended service set(ESS) and Basic service set(BSS) in 802.11 architecture. 04
(c) Enlist and explain Error detection methods in cellular wireless network. 07

Q.8 (a) List the functionality of Service Discovery Protocol(SDP). 03

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(b) Explain Piconet and Scatternet. 04
(c) Sketch and express meaning of every component of Android architecture. 07

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