Test presentation
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Revision as of 20:13, 8 October 2014 by Josef.Noll (Talk | contribs)
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TESTING presentation modus ---- internal error of MediaWiki??
Contents
UNIK 4700 Building Mobile and Wireless Networks
- Title
- Building Mobile and Wireless Networks
- Subtitle
- Table-of-Content
- Author
- Josef Noll
- Footer
- Test presentation
- Subfooter
- UNIK4700/UNIK9700
⌘ 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)
