Measurement and Modeling of Wireless Channels


As wireless signals traverse the path from a transmitter to a receiver, they will be diffracted, scattered, and absorbed by the terrain, trees, buildings, vehicles, and people that comprise the propagation environment. In the process, the signal may be distorted or impaired in various ways. The presence of obstructions along the path may cause the signal to experience greater attenuation than it would under free space conditions. If the signal is scattered by obstacles located throughout the coverage area, replicas of the signal may take multiple paths from the transmitter to the receiver. Because the replicas will arrive at the receiver after different delays, the signal will experience time dispersion. Because the replicas will also arrive from different directions, the signal will experience angular dispersion.


Path Loss Channel Impulse Response Doppler Spectrum Body Area Network Wireless Personal Area Network 


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Copyright information

© Springer-Verlag US 2009

Authors and Affiliations

  1. 1.University of British ColumbiaVancouverCanada
  2. 2.AT&T Labs - ResearchFlorham ParkUSA

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