Difference between revisions of "TEK5110/List of Questions"
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= Questions related to TEK5110 Building Mobile and Wireless Networks = | = Questions related to TEK5110 Building Mobile and Wireless Networks = | ||
| − | Radio communications (related to A1) | + | Radio communications and antennas (related to A1) |
* What two functions are performed by antenna? | * What two functions are performed by antenna? | ||
* What is an isotropic antenna? What factors determine antenna gain? | * What is an isotropic antenna? What factors determine antenna gain? | ||
* What is meant by radiation pattern? | * What is meant by radiation pattern? | ||
| + | |||
<!--- * What is polarisation? What are its types? ---> | <!--- * What is polarisation? What are its types? ---> | ||
* What is the relation between frequency and wavelength? Provide examples of typical wavelength for mobile and wireless communications. | * What is the relation between frequency and wavelength? Provide examples of typical wavelength for mobile and wireless communications. | ||
| − | * What is happening when I double the frequency, e.g. from 900 to 1800 to 2400 to 5100 MHz? | + | * What is happening when I double the frequency, e.g. from 900 to 1800 to 2400 to 5100 MHz (in terms of range and capacity)? |
* What is fading? What are the differences between fast and slow fading, and what causes the effects? | * What is fading? What are the differences between fast and slow fading, and what causes the effects? | ||
* Describe the disturbances of a radio wave due to attenuation, reflection, diffraction, scattering, and fading. What are these effects? Explain using practical examples from mobile communication environments. | * Describe the disturbances of a radio wave due to attenuation, reflection, diffraction, scattering, and fading. What are these effects? Explain using practical examples from mobile communication environments. | ||
| Line 15: | Line 16: | ||
* What is the difference between rural communications and urban communications? | * What is the difference between rural communications and urban communications? | ||
| − | + | Digital Communication and Communication Systems AA2, A2-A4, B1-C3 | |
| − | Digital Communication and Communication Systems AA2, | + | * Looking into range, how do we classify wireless systems? Give examples. How can we extend the range (how can we reach longer)? |
| − | * Looking into range, how do we classify wireless systems? Give examples. How can we extend the | + | |
* What effect does the signal to noise ratio has on wireless communications? | * What effect does the signal to noise ratio has on wireless communications? | ||
| − | * What are the factors for influencing the capacity of a system? Which factor dominates | + | * What are the factors for influencing the capacity of a system? Which factor dominates? |
| − | + | * What is the relation between dB and dBm? Examples, e.g. doubling power, 10 x power | |
| − | * What is the relation between dB and dBm? | + | |
| − | * What is the free space propagation equation? How does real world propagation change the propagation equation? | + | * What is the free space propagation equation? |
| + | * How does real-world propagation change the propagation equation? | ||
* What do we mean by indoor, pedestrian and vehicular environments? Where are they used? | * What do we mean by indoor, pedestrian and vehicular environments? Where are they used? | ||
| − | * Why do higher modulation schemes need a better signal to noise ratio? | + | <!--- * Why do higher modulation schemes need a better signal to noise ratio? ---> |
| − | * What | + | |
| + | Communication Systems | ||
| + | * What is the bandwidth of typical mobile and wireless systems? Provide examples. | ||
| + | * What is a MIMO system and how does it enhance the capacity of a communication? | ||
| + | * What are the core characteristics of mobile communication systems (1G-5G)? | ||
| + | |||
| + | Remote Monitoring and Management | ||
| + | *What are the advantages of remote monitoring and management of wireless devices? (name at least three) | ||
| + | *What are three common managed wireless solutions? (explain each solution in short) | ||
| + | *What is the software-defined networking (SDN)? Can we use SDN solution to monitor and manage wireless networks?(explain in short) | ||
| + | *Explain IoT device life cycle. | ||
| + | *What is the optimal IoT management architecture(using a gateway or direct connection to management server)? | ||
| + | *What kind of wireless issues are idenrifiable by using protocol analyzers capturing wireless frames? (name at least three) | ||
= Information = | = Information = | ||
* Compendium [[Building_Mobile_and_Wireless_Networks_Compendium]] | * Compendium [[Building_Mobile_and_Wireless_Networks_Compendium]] | ||
* Slides presented in the [[TEK5110]] lectures | * Slides presented in the [[TEK5110]] lectures | ||
Latest revision as of 10:10, 22 November 2022
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(back to TEK5110)
Radio communications and antennas (related to A1)
- What two functions are performed by antenna?
- What is an isotropic antenna? What factors determine antenna gain?
- What is meant by radiation pattern?
- What is the relation between frequency and wavelength? Provide examples of typical wavelength for mobile and wireless communications.
- What is happening when I double the frequency, e.g. from 900 to 1800 to 2400 to 5100 MHz (in terms of range and capacity)?
- What is fading? What are the differences between fast and slow fading, and what causes the effects?
- Describe the disturbances of a radio wave due to attenuation, reflection, diffraction, scattering, and fading. What are these effects? Explain using practical examples from mobile communication environments.
- How is diffraction and NLOS used for radio communications?
- What is an impuls response in mobile communications? Which are the two factors describing it?
- What is the difference between rural communications and urban communications?
Digital Communication and Communication Systems AA2, A2-A4, B1-C3
- Looking into range, how do we classify wireless systems? Give examples. How can we extend the range (how can we reach longer)?
- What effect does the signal to noise ratio has on wireless communications?
- What are the factors for influencing the capacity of a system? Which factor dominates?
- What is the relation between dB and dBm? Examples, e.g. doubling power, 10 x power
- What is the free space propagation equation?
- How does real-world propagation change the propagation equation?
- What do we mean by indoor, pedestrian and vehicular environments? Where are they used?
Communication Systems
- What is the bandwidth of typical mobile and wireless systems? Provide examples.
- What is a MIMO system and how does it enhance the capacity of a communication?
- What are the core characteristics of mobile communication systems (1G-5G)?
Remote Monitoring and Management
- What are the advantages of remote monitoring and management of wireless devices? (name at least three)
- What are three common managed wireless solutions? (explain each solution in short)
- What is the software-defined networking (SDN)? Can we use SDN solution to monitor and manage wireless networks?(explain in short)
- Explain IoT device life cycle.
- What is the optimal IoT management architecture(using a gateway or direct connection to management server)?
- What kind of wireless issues are idenrifiable by using protocol analyzers capturing wireless frames? (name at least three)
Information
- Compendium Building_Mobile_and_Wireless_Networks_Compendium
- Slides presented in the TEK5110 lectures
