Download GTU BE/B.Tech 2018 Winter 7th Sem New 2170710 Mobile Computing And Wireless Communication Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER-VII (NEW) EXAMINATION - WINTER 2018

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Subject Code: 2170710 Date: 26/11/2018

Subject Name: Mobile Computing and Wireless Communication

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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

Q.1

1. (a) What is ARQ? What is the importance of it? [03]
2. (b) What is noise? Discuss briefly types of noise and its effect on transmission signal. [04]

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3. (c) Compare and contrast OSI model and TCP/IP protocol architecture. [07]

Q.2

1. (a) What do you mean by channel capacity? What are the factors that affect it? [03]
2. (b) Differentiate circuit switching and packet switching [04]
3. (c) What is Mobile IP? Explain discovery, registration and tunneling in Mobile IP. [07]

   OR

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4. (c) What is Direct Sequence Spread Spectrum technology? How does it work in CDMA technology? [07]

Q.3

1. (a) Compare GSM and CDMA technology. [03]
2. (b) Explain various transmission media w.r.t. merit, demerits and application of each. [04]

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3. (c) Explain functional architecture of GSM system and types of services provided by GSM. [07]

   OR

Q.3

1. (a) Define IMSI, IMEI and MS-ISDN and write significance of each. [03]
2. (b) What is Handover? Explain types of it in brief. [04]

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3. (c) Explain IEEE 802.11 architecture and services. [07]

Q.4

1. (a) Define following. [03]
   1. Fading
   2. Modulation

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2. (b) What are HLR and VLR? Describe its functions in call routing and roaming. [04]
3. (c) Draw and explain Bluetooth Protocol Architecture. [07]

   OR

Q.4

1. (a) Define ASK, FSK & PSK. [03]

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2. (b) Describe Error Control Coding in brief. [04]
3. (c) Discuss the network elements in GPRS that are different from GSM. [07] Also discuss applications and limitations of GPRS.

Q.5

1. (a) Explain Android TextView control with an example. [03]
2. (b) How billing and charging functions are handled in GPRS? [04]

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3. (c) Explain different layouts in Android. [07]

   OR

Q.5

1. (a) Explain Android ButtonView control with an example. [03]
2. (b) Discuss briefly: Limitations of GPRS. [04]

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3. (c) Explain Android architecture with diagram. [07]

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