B.TechSemester 72024-25Wireless Mobile CommunicationKEC076

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) — complete question paper · 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. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.