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InsemMar 20242019 patternTE E&TC

Cellular Network SPPU Insem Question Paper Mar 2024

All 4 questions from this SPPU insem paper, as printed. Read them here or open the PDF.

Open the PDFMost repeated Cellular Network questions
Subject code
304192
Pattern
2019 pattern
Exam
Insem
Session
Mar 2024
Max. marks
30
Time
1 Hour
Semester
II
Paper code
[6269]-344

Printed for: T.E. (Electronics & Telecommunication) (Insem)

Instructions to the candidates

  1. Answers Q.1 or Q.2, Q.3 or Q.4.
  2. Figures to the right side indicate full marks.
  3. Neat diagrams must be drawn wherever necessary.
  4. Assume Suitable data if necessary.

Questions

  1. Q1

    1. a)

      Define and explain: Path loss, RF signal interference and Fading.

      [6]
    2. b)

      Explain free space propagation model. Also write an equation of received power in free space propagation.

      [5]
    3. c)

      Explain Diversity in Wireless Communications.

      [4]

  2. Q2

    1. a)

      Compute median loss for large city by considering Hata model at a distance of 3Km with carrier frequency of 2.1 GHz and transmitting and receiving antenna height as 20 m and 2 m respectively.

      [6]
    2. b)

      With neat diagram explain ground reflection in wireless communication system.

      [5]
    3. c)

      Explain channel estimation techniques.

      [4]

  3. Q3

    1. a)

      What is concept of OFDM? List the advantages of OFDM.

      [5]
    2. b)

      Calculate total no. of samples transmitted with cyclic prefix if total no. of subcarrier, N=256 & bandwidth per subcarrier = 15.625 KHz.

      [5]
    3. c)

      What is importance of cyclic prefix in OFDM?

      Also asked:Mar 2026

      [5]

  4. Q4

    1. a)

      Explain block diagram of multicarrier transmission system used in OFDM.

      [5]
    2. b)

      Derive an expression for calculation of BER in OFDM system.

      [5]
    3. c)

      Explain 3×3 MIMO System used in wireless communication. 

      [5]