Difference between revisions of "Test presentation"
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TESTING presentation modus ---- internal error of MediaWiki?? | TESTING presentation modus ---- internal error of MediaWiki?? | ||
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<!---- non wiki - heading for slideshow---> | <!---- non wiki - heading for slideshow---> | ||
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| − | <slideshow style=" | + | <slideshow style="default" headingmark="⌘" incmark="…" scaled="80" font="Comic Sans MS, Calibri, cursive" > |
| − | ;title: | + | ;title: Semantic MediaWiki |
| − | ;subtitle: | + | ;subtitle: Collaborative Working |
;author: Josef Noll | ;author: Josef Noll | ||
| − | ;subfooter: | + | ;subfooter: UNIKUM kolloq |
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=⌘ History and Future = | =⌘ History and Future = | ||
Revision as of 20:14, 8 October 2014
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TESTING presentation modus ---- internal error of MediaWiki??
Contents
The Semantic MediaWiki as a cooperative Tool
- Title
- Semantic MediaWiki
- Subtitle
- Collaborative Working
- Author
- Josef Noll
- Footer
- Test presentation
- Subfooter
- UNIKUM kolloq
⌘ History and Future
- History of wireless communications
- Maxwell, Hertz, Marconi and other pioneers
- 1G, 2G ... 5G networks
- Frequencies and Standards
- Future Challenges
⌘ TOC - Basics of Communication
- Electromagnetic Signals
- Radio Communication Principles
- Digital communication: Nyquist, Signal/Noise Ratio
- Signal strength and Capacity: Shannon
⌘TOC - Antennas and Propagation
- Free Space Propagation
- Antennas, Gain, Radiation Pattern
- Multipath Propagation, Reflection, Diffraction
- Attenuation, Scattering
- Interference and Fading (Rayleigh, Rician, …)
- Mobile Communication dependencies
What have we learned?
- antenna characteristics and gain
- what happens if I double the frequency (900 - 1800 - 2400 Unik/MHz)?
- minimum GSM receiver sensitivity
- typical receiver power at 900 Unik/MHz (GSM channel sounder - rural)
- typical received power at 1800 Unik/MHz (GSM channel sounder - rural)
- difference City - rural - indoor
- principal operation of MIMO
⌘TOC - Propagation models
- Environments (indoor, outdoor to indoor, vehicular)
- Outdoor (Lee, Okumura, Hata, COST231 models)
- Indoor (One-slope, multiwall, linear attenuation)
