Download PTU B.Tech 2020 March ECE 6th Sem BTEC 602 Wireless Communication System Question Paper

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Roll No. [T TTTTTT] [ ] Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech.(ECE) (2012 to 2017) (Sem.-6)

WIRELESS COMMUNICATION SYSTEM

Subject Code : BTEC-602

M.Code : 71122

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1) Answer briefly :

1. What is the difference between Long term and Short term fading?
2. What is real time Co-channel interference?
3. What are the limitations of conventional mobile telephone system?
4. What are the interfaces used in GSM?

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5. What is frequency reuse?
6. Mention the various multiple access schemes used in wireless communication?
7. What is base station?
8. What is the function of control channel? What are the types?
9. What is flat fading?

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10. What do you mean by forward and reverse channel?

SECTION-B

2. What are the channel types of GSM system? Explain.

3. Explain the space diversity methods.

4. Explain the performance criteria and operation of cellular systems.

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5. Write short note on LTE- Advance systems.

6. Explain Pure ALOHA and Slotted ALOHA in detail.

SECTION-C

7. Differentiate the analog & digital cellular systems with their operating capacities.

8. Mention the two frequency reuse schemes and explain N-cell reuse pattern in detail for four & seven cell reuse with illustrative diagrams.

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9. Discuss the salient features of FDMA and TDMA techniques.

NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC case against the Student.