wireless-fundamentals

wireless-fundamentals - WirelessCommunication Fundamentals...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Wireless Communication  Fundamentals David Holmer [email protected]
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Physical Properties of Wireless Makes wireless network different from  wired networks Should be taken into account by all layers
Background image of page 2
Wireless = Waves Electromagnetic radiation Emitted by sinusoidal current running through  a wire (transmitting antenna) Creates propagating sinusoidal magnetic and  electric fields according to Maxwell’s equations: Fields induce current in receiving antenna 
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Wave Propagation Example electric field magnetic field propagation direction
Background image of page 4
Propagating sinusoidal wave with  some frequency/wavelength C (speed of light) = 3x10 8 m/s Name 900 Mhz 2.4 Ghz 5 Ghz Range 902 - 928 2.4 - 2.4835 5.15 - 5.35 Bandwidth 26 Mhz 83.5 Mhz 200 Mhz Wavelength .33m / 13.1” .125m / 4.9” .06 m / 2.4” λ c f =
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Free-space Path-loss  Power of wireless transmission reduces with square of 
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/15/2011 for the course ECKOW 123 taught by Professor Riuyt during the Spring '11 term at University of Damascus.

Page1 / 11

wireless-fundamentals - WirelessCommunication Fundamentals...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online