Wireless Mobile Communication (KEC-076) - AKTU Question Paper 2021-22
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 2021-22. 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:2021-22
University:AKTU / UPTU
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Questions Asked in 2021-22
Wireless Mobile Communication (KEC-076) — extracted question text
Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20
- aExplain the tradeoffs between the system capacity and co-channel interference
- bWrite the name of channel assignment strategies in mobile radio propagation
- cDefine the term Multiple Access
- dWrite down the types of space diversity techniques
- eIllustrate various persistent methods in CSMA
- fDefine the term Equalization
- gDiscuss the uplink and downlink frequency band of GSM
- hDefine specifications of LEO, MEO and GEO. i. Discuss the advantages of NGN networks. j. Compare Wi-Fi and WiMax
Section BAttempt any three o f t h e f o l l o w i n g : 10 x 3 = 30
- aI l l u s t r a t e t h e MAHO technique and Queuing concept in hand off. Also explain the different types of handoff in mobile communication. b. Explain pn sequence generation process with the help of 3 bit linear feedback Shift register. c. Compare the throughput efficiencies and vulnerable time of pure ALOHA and Slotted ALOHA with the help of proper formulation. d. Explain the network architecture of UMTS. Also give brief view of IMT2000. e. Explain Wi-Fi and WiMax Standards
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10 x 1 = 10
- aIf a signal to interference ration of 15dB is required for satisfactory forward channel performance of a cellular system, Calculate the frequency reuse factor and cluster size that should be used for maximum capacity if the path loss exponent is (a) n=4, (b) n=3? Assume that there are 6 co-channel cells in first tier, and all of them are at the same distance from the mobile. Use suitable approximations
- bExplain Frequency Reuse concept with the help of proper cel lular diagram. Also draw
- acellular system with 19-cell reuse and locate the co-channel cells for this system
- aClassify and explain different types of vocoders. Also give properties of speech signal
- bIllustrate the different types of Frequency Hopped Multiple Access with the help of proper hop timing diagram
- aIllustrate various Equalization techniques with the help of proper block diagram
- bExplain FDMA and TDMA in detail with suitable diagram
- aExplain GSM with the help of proper network architecture bl ock diagram. Also give brief view of various Interface standards in GSM
- bExplain Long term evolution (LTE) architecture in detail wi th diagram. Also give brief view of mobile satellite communication
- aWrite Short Note on (i) Mobile Adhoc Network (MANET) (ii) Bluetooth
- bWrite Short Note on (i) Light Fidelity (ii) Introduction to 4g and 5g
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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