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Thursday, September 6, 2012

Wireless Communication 16 Marks Question Bank

PART-B

1. Explain in detail the evolution of wireless communication? (8 Marks)

Explanation of different standards in different years

Mobile radio system standards


2. Write short notes on different trends in cellular radio & personal

communication.(8Marks)

Explanation of different trends in cellular radio

Explanation of different trends in personal communication


3. Write short notes on frequency reuse & channel assignment . (16 Marks)

Concept of frequency reuse

Fixed channel assignment

Dynamic channel assignment


4. Explain the different hand off strategies used in wireless communication (8 Marks)

Concept of Handoff

Different types of handoff

5. Explain in detail the different techniques used to improve coverage &capacity of cellular

system .(16 Marks)

Explanation of cell splitting

Explanation of sectoring

Explanation of micro zone coverage


6.Explain the free space propagation model ?(8 Marks)

Free space model & equation

Path loss model explanation


7.What is reflection?. Explain in detail the reflection from dielectric and conductors. (16

Marks)

Explanation of reflection & reflection coefficient from dielectric.

Explanation of reflection from conductors.


8. Write short notes on diffraction and scattering . (16 Marks)

Explanation of diffraction & fresnel zone geometry

Explanation of scattering.


9.Explain in detail the indoor & outdoor propagation model . (16 Marks)

Outdoor propagation model – longley rice model ,durkin model

explanation

PART-B

1. Explain in detail the evolution of wireless communication? (8 Marks)

Explanation of different standards in different years

Mobile radio system standards


2. Write short notes on different trends in cellular radio & personal

communication.(8Marks)

Explanation of different trends in cellular radio

Explanation of different trends in personal communication


3. Write short notes on frequency reuse & channel assignment . (16 Marks)

Concept of frequency reuse

Fixed channel assignment

Dynamic channel assignment


4. Explain the different hand off strategies used in wireless communication (8 Marks)

Concept of Handoff

Different types of handoff

5. Explain in detail the different techniques used to improve coverage &capacity of cellular

system .(16 Marks)

Explanation of cell splitting

Explanation of sectoring

Explanation of micro zone coverage


6.Explain the free space propagation model ?(8 Marks)

Free space model & equation

Path loss model explanation


7.What is reflection?. Explain in detail the reflection from dielectric and conductors. (16

Marks)

Explanation of reflection & reflection coefficient from dielectric.

Explanation of reflection from conductors.


8. Write short notes on diffraction and scattering . (16 Marks)

Explanation of diffraction & fresnel zone geometry

Explanation of scattering.


9.Explain in detail the indoor & outdoor propagation model . (16 Marks)

Outdoor propagation model – longley rice model ,durkin model

explanation

Indoor model – partition loss ,log distance path loss model.


10.Explain in detail the small scale multipath propagation and its different

measurements. (16 Marks)

Explanation of small scale multipath propagation

Measurements –spread spectrum sliding channel sounding, frequency

domain channel sounding.


11.Write short notes on small scale fading. (8 Marks)

Explanation of small scale fading

Flat fading, frequency selective fading types


12.Explain in detail the generation & detection of MSK technique? (16 Marks)

Principle of MSK

MSK transmitter block diagram &explanation

MSK receiver block diagram &explanation


13. Explain in detail the generation & detection of GMSK modulation? (16 Marks)

Principle of GMSK

GMSK transmitter block diagram &explanation

GMSK receiver block diagram &explanation


14.Write short notes on M-ary QAM & M-ary FSK. (16 Marks)

Principle & generation of M-ary QAM

Principle & generation of M-ary FSK


15. Explain the performance of digital modulation in slow flat fading channel.(16 Marks)

Explanation & comparison of digital modulation

Performance results for ASK,FSK,QPSK,MSK


16.Explain the working principle of RAKE Receiver ? (8 Marks)

Block diagram of RAKE receiver

Working principle


17.Explain the working principle of Linear predictive coder (16 Marks)

Block diagram of Linear predictive coder

Working principle

Advantages


18.Explain the working principle of GSM codec with neat block diagram. (16 Marks)

Block diagram of GSM codec

Working principle

Advantages


19.Explain in detail the TDMA & FDMA multiple access techniques. (16 Marks)

TDMA working principle &advantages

FDMA working principle &advantages


20. Explain in detail the CDMA multiple access technique. (16 Marks)

CDMA working principle

Advantages & comparison with other techniques.


21. Compare the performance of TDMA ,FDMA, CDMA ,SDMA techniques .

(8 Marks)

Principles of TDMA ,FDMA, CDMA ,SDMA

Comparison of above techniques.


22.Explain in detail the 1G,2G,3G generation systems & their standards .(16 marks)

Explanation of generation models of 1G,2G,3G

Explanation of their standards


23. Explain about AMPS with neat diagram. (16 marks)

Structure of AMPS

Explanation of AMPS


24. Explain forward & reverse channel parameters of IS-95 CDMA. (16 marks)

Explanation of IS-95 system

Different forward channels and details

Different reverse channels and details


25. Draw the functional block diagram DECT system and explain its working principle

(16 marks)

Structure of DECT system

Working principle –explanation


26. Write short notes on WLL. (8 marks)

WLL working principle

Explanation, advantages

Applications

Indoor model – partition loss ,log distance path loss model.


10.Explain in detail the small scale multipath propagation and its different

measurements. (16 Marks)

Explanation of small scale multipath propagation

Measurements –spread spectrum sliding channel sounding, frequency

domain channel sounding.


11.Write short notes on small scale fading. (8 Marks)

Explanation of small scale fading

Flat fading, frequency selective fading types


12.Explain in detail the generation & detection of MSK technique? (16 Marks)

Principle of MSK

MSK transmitter block diagram &explanation

MSK receiver block diagram &explanation


13. Explain in detail the generation & detection of GMSK modulation? (16 Marks)

Principle of GMSK

GMSK transmitter block diagram &explanation

GMSK receiver block diagram &explanation


14.Write short notes on M-ary QAM & M-ary FSK. (16 Marks)

Principle & generation of M-ary QAM

Principle & generation of M-ary FSK


15. Explain the performance of digital modulation in slow flat fading channel.(16 Marks)

Explanation & comparison of digital modulation

Performance results for ASK,FSK,QPSK,MSK


16.Explain the working principle of RAKE Receiver ? (8 Marks)

Block diagram of RAKE receiver

Working principle


17.Explain the working principle of Linear predictive coder (16 Marks)

Block diagram of Linear predictive coder

Working principle

Advantages


18.Explain the working principle of GSM codec with neat block diagram. (16 Marks)

Block diagram of GSM codec

Working principle

Advantages


19.Explain in detail the TDMA & FDMA multiple access techniques. (16 Marks)

TDMA working principle &advantages

FDMA working principle &advantages


20. Explain in detail the CDMA multiple access technique. (16 Marks)

CDMA working principle

Advantages & comparison with other techniques.


21. Compare the performance of TDMA ,FDMA, CDMA ,SDMA techniques .

(8 Marks)

Principles of TDMA ,FDMA, CDMA ,SDMA

Comparison of above techniques.


22.Explain in detail the 1G,2G,3G generation systems & their standards .(16 marks)

Explanation of generation models of 1G,2G,3G

Explanation of their standards


23. Explain about AMPS with neat diagram. (16 marks)

Structure of AMPS

Explanation of AMPS


24. Explain forward & reverse channel parameters of IS-95 CDMA. (16 marks)

Explanation of IS-95 system

Different forward channels and details

Different reverse channels and details


25. Draw the functional block diagram DECT system and explain its working principle

(16 marks)

Structure of DECT system

Working principle –explanation


26. Write short notes on WLL. (8 marks)

WLL working principle

Explanation, advantages

Applications

2 comments:

  1. This is very useful

    ReplyDelete
  2. Now what type of project going on wireless communication?

    ReplyDelete

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