Title :
On spatial power gradients
Author :
Eggers, Patrick C F ; Thommesen, Christian ; Andersen, Jørgen Bach
Author_Institution :
Center for PersonKommunikation, Aalborg Univ., Denmark
fDate :
1/1/2000 12:00:00 AM
Abstract :
The variation of the instantaneous power versus distance for a narrowband channel is an important parameter in modern digital systems, relevant for variations during a burst and for power control algorithms. This paper gives the statistical distribution for the power gradient, both in decibels and in natural units for a Rayleigh fading channel. The former has been known for some time to be Student´s t distribution, and the latter has a Laplacian distribution, a new result. Both results are proven here. They are in variance with an approximation given in a previous publication
Keywords :
Rayleigh channels; digital radio; land mobile radio; power control; statistical analysis; Laplacian distribution; Rayleigh fading channel; Student´s t distribution; burst; digital systems; distance; instantaneous power; narrowband channel; power control algorithms; spatial power gradients; statistical distribution; Digital systems; Distribution functions; Doppler shift; Fading; Laplace equations; Narrowband; Power control; Power measurement; Rayleigh channels; Statistical distributions;
Journal_Title :
Vehicular Technology, IEEE Transactions on
