Exam Details
| Subject | Wireless Communication | |
| Paper | ||
| Exam / Course | BTCVI / BTECVI / BTELVI | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 4 IBIEL-61SI
B.Tech. -VIEP -ELECTRONICS AND COMMUNICATION ENGINEERING (BTECVI)
Term-End Examination
001.06
June, 2016
BIEL-018 WIRELESS COMMUNICATION
Time: 3 hour.s Maximum Marks: 70
Note: Attempt any seven questions. Each question carries equal marks. Use of scientific calculator is allowed.
1. Discuss the evolution of mobile radio communication.
Derive and explain the free space propagation model for wireless communication. 2 x 5=10
2. What is small-scale fading? Explain its various types.
Calculate the mean excess delay and rIDS delay spread for the multipath profile given in Figure 1. Estimate 90% coherence bandwidth of the channel.
<img src='./qimages/10869-2b.jpg'> 2x5=10
3. Explain impulse response model for wireless communication.
Discuss time diversity and frequency diversity techniques used in radio communication. 2x5=10
4. What is co-channel interference in cellular systems? How can it be minimized?
Explain RAKE receiver with its block diagram. 2x5=10
5. What is hand-off? Differentiate between vertical and horizontal hand-off.
Write down. the various features of time division multiple access technique.
6. What is channel assignment? Differentiate between fixed channel and dynamic channel assignments.
Compare 2G and 3G wireless systems.
7. Explain the use of equaliser in a communication receiver.
What is frequency reuse factor? If a total of 33 MHz of bandwidth is allocated to a particular FDD cellular telephone system which uses two 25 kHz simplex channels to provide full duplex voice and control channels, compute the number of channels available per cell if the system uses 7-cell reuse. If 1 MHz of the allocated spectrum is dedicated to control channels, determine an equitable distribution of control channels and voice channels in each cell.
8. Explain coverage and capacity improving techniques in wireless communication systems.
9. What is quantization process Differentiate between uniform and non-uniform quantization.
What are Vocoders Explain Cepstrum Vocoder.
10. Write short notes on any two of the following: Frequency Hopped Sprea4 Spectrum Adjacent Channel Interference Linear Predictive Coders
B.Tech. -VIEP -ELECTRONICS AND COMMUNICATION ENGINEERING (BTECVI)
Term-End Examination
001.06
June, 2016
BIEL-018 WIRELESS COMMUNICATION
Time: 3 hour.s Maximum Marks: 70
Note: Attempt any seven questions. Each question carries equal marks. Use of scientific calculator is allowed.
1. Discuss the evolution of mobile radio communication.
Derive and explain the free space propagation model for wireless communication. 2 x 5=10
2. What is small-scale fading? Explain its various types.
Calculate the mean excess delay and rIDS delay spread for the multipath profile given in Figure 1. Estimate 90% coherence bandwidth of the channel.
<img src='./qimages/10869-2b.jpg'> 2x5=10
3. Explain impulse response model for wireless communication.
Discuss time diversity and frequency diversity techniques used in radio communication. 2x5=10
4. What is co-channel interference in cellular systems? How can it be minimized?
Explain RAKE receiver with its block diagram. 2x5=10
5. What is hand-off? Differentiate between vertical and horizontal hand-off.
Write down. the various features of time division multiple access technique.
6. What is channel assignment? Differentiate between fixed channel and dynamic channel assignments.
Compare 2G and 3G wireless systems.
7. Explain the use of equaliser in a communication receiver.
What is frequency reuse factor? If a total of 33 MHz of bandwidth is allocated to a particular FDD cellular telephone system which uses two 25 kHz simplex channels to provide full duplex voice and control channels, compute the number of channels available per cell if the system uses 7-cell reuse. If 1 MHz of the allocated spectrum is dedicated to control channels, determine an equitable distribution of control channels and voice channels in each cell.
8. Explain coverage and capacity improving techniques in wireless communication systems.
9. What is quantization process Differentiate between uniform and non-uniform quantization.
What are Vocoders Explain Cepstrum Vocoder.
10. Write short notes on any two of the following: Frequency Hopped Sprea4 Spectrum Adjacent Channel Interference Linear Predictive Coders
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
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- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
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- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
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- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advance Microprocessor And Architecture
- Analog and Mixed Mode VLSI Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas and Propagation
- B10-Informatics
- Basics Of Electronics Engineering
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Device Modelling For Circuit Simulation
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Electromagnetic Field Theory
- Electronic Measurement and Inst
- Electronic Switching Circuits
- Embedded System Design
- Information Theory And Coding
- Linear Integrated Circuits
- Microcontrollers
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Multirate Systems
- Optical Fiber Communication
- Power Electronics
- Satellite And Tv Engineering
- Signal And Systems
- Wireless Communication