B.TechSemester 72024-25Wireless Mobile CommunicationKEC076
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Wireless Mobile Communication (KEC076) - AKTU Question Paper 2024-25

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU Wireless Mobile Communication Previous Year Question Paper for B.Tech Semester 7, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 7
Session:2024-25
University:AKTU / UPTU

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Questions Asked in 2024-25

Wireless Mobile Communication (KEC076) — extracted question text · 100 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 1 0 = 2 0
  • a
    If i= 2 and j= 1, calculate the cluster size in cellular system
  • b
    Explain Doppler effect in wireless communication
  • c
    Define channel estimation
  • d
    Define spread spectrum modulation
  • e
    Write down the basic principle of orthogonality in OFDMA
  • f
    Define various persistent methods in CSMA
  • g
    Discuss the uplink and downlink frequency band of GSM
  • h
    Define LEO, MEO and GEO in mobile satellite communication. 4 K 1 i. Compare Bluetooth and ZigBee. 5 K2 j. Define air interface
Section BAttempt any three of the following: 10 x 3 = 30
  • a
    Illustrate Rayleig h Fading Channel. Write and draw its pdf and explain all the parameters
  • b
    Describe in detail about the different diversity mechanism w ith their advantages
  • c
    Discuss about the equalizatio n techniques and illustrate abo ut the Adaptive Equalizers in detail with suitable diagram
  • d
    Draw the GSM system architect ure and briefly explain its components
  • e
    Define next generation network (NGN), and its basic services , features and functional architecture
Section CAttempt any one part of the following: 10 x 1 = 10
  • a
    Explain various methods which are used to increase Channel C overage and capacity
  • b
    Describe different Hand-off mechanisms with suitable diagram
  • a
    I l l u s t r a t e t h e d i f f e r e n t t y p e s o f F H S S w i t h t h e h e l p o f p r o per hop timing Diagram, and differentiate with the DSSS
  • b
    Explain and classify various types of vocoders with pictoria l view of general voice generation mechanism
  • a
    Explain multiple access techniques and Compare the TDMA, FDM A and CDMA techniques with suitable diagrams
  • b
    Define pooling and Illustrate CSMA with the help of proper f low diagram
  • a
    Explain GPRS architecture in d etail with focus on modifications over GSM
  • b
    Draw the architect ure of UMTS, and explain its main constituents
  • a
    Define WiMAX standards, its protocol architecture, and appli cations in competitions with Wi-Fi
  • b
    Explain Bluetooth's network t opologies and its protocol stack

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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