Propagation Characteristics of Wireless Channels

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Propagation Characteristics of Wireless Channels

Course UNIK4230
Title Propagation Characteristics of Wireless Channels
Lecture date 2015/02/12
presented by Per Hjalmar Lehne
Objective Basics of radio wave propagation.

Understand fading in mobile propagation channels

Learning outcomes Understand the following topics in wireless channel propagation:
  • Reflection, Refraction, Diffraction and Scattering phenomenon in propagation
  • Attenuation
  • Path Loss
  • Multipath propagation
  • Rayleigh and Rice fading
  • Signal distortions due to fading
  • Lognormal fading - shadowing
Pensum (read before)
References (further info) Book: Wireless Communications (Chapter 2) Media:UNIK4230-CHAPTER-2.pdf
Keywords Propagation, Antennas, Gain, Free space attenuation, Fresnel Zone, Hata Model, Attenuation, Fading, Rayleigh, Rice, coherence bandwidth, Multipath, Propagation Models, Indoor Propagation Model

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Test yourself, answer these questions

  • Explain what is a Fresnel zone and how do I calculate it?
  • What is the difference between Line of Sight and NON Line of sight?
  • What are some of the phenomenon that radio wave experience when propagates in our environment?
  • What is fading? What is fast fading and what is slow fading?
  • What is Rayleigh and Rician distribution?
  • what is dB and what is dBm?
  • What is the Hata Model? What are the main parameters in the Hata Model that affects path loss?

Lecture 2015

Lectures 2014

Lecture 2013

Documentation from 2012

Other info