Title :
Stochastic rays pulse propagation
Author :
Franceschetti, Massimo
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA, USA
Abstract :
We consider a stochastic-ray model of wave propagation based on the theory of random walks that accounts for only two parameters: the amount of clutter and the amount of absorption in the environment. This model applies to indoor and outdoor environments, characterized by a large number of (small) scattering objects. Examples are microcells for personal communication and networks of multihop wireless sensors or laptop computers. We extend our previous results on narrow-band signals to impulse waveforms, deriving a closed form solution for the power delay profile of the received signal.
Keywords :
clutter; delays; electromagnetic wave scattering; indoor radio; microcellular radio; personal communication networks; radiowave propagation; random media; transient response; wireless sensor networks; clutter amount; impulse response; indoor-outdoor environments; microcells; multihop wireless sensors networks; narrow-band signals; personal communication; power delay profile; random walks theory; scattering objects; stochastic-ray model; wave propagation; Absorption; Computer networks; Microcell networks; Narrowband; Portable computers; Scattering; Sensor phenomena and characterization; Spread spectrum communication; Stochastic processes; Wireless sensor networks; Impulse response; microcells; power delay profile; random media; random walks; ultrawideband;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.834376
