Wireless Channels: Large Scale Fading (Path Loss)

Wireless Channels: Large Scale Fading (Path Loss)

Wireless Channels: Large Scale Fading (Path Loss)

Wireless Communications 06-88-563 These slides contains copyrighted materials from Prentice Hall Inc.. These

figures are provided as instructor resources, and sources of these figures are: Wireless Communications and Networking,

Jon W. Mark, Weihua Zhuang Wireless Communications: Principles and Practice, Theodore S. Rappaport

Small-scale and large-scale fading

Free Space Propagation Free Space Propagation

2-Ray model

Classical 2-ray ground bounce model

Reflection from smooth surface Vector addition of 2 rays

Diffraction geometry

Knife-edge diffraction v=f(d1,d2,h)

Knife-edge diffraction loss Multiple knife-edge diffraction

Typical large-scale path loss

Measured large-scale path loss Area versus Distance coverage

model with shadowing model 2-D Propagation Raster data

Representing propagation

Algorithm for line of sight (LOS) Okumura and Hatas model

Walfisch and Bertonis model

Measured data from San Francisco Partition losses

Ericssons indoor model

Measured indoor path loss Measured indoor path loss

Measured indoor path loss

Devasirvathams model Method of Images

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