Theory of multipath shape factors for small-scale fading wireless channels

Author

Durgin, Gregory D. ; Rappaport, Theodore S.

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

48

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

682

Lastpage

693

Abstract

This paper presents a new theory of multipath shape factors that greatly simplifies the description of small-scale fading statistics of a wireless receiver. A method is presented for reducing a multipath channel with arbitrary spatial complexity to three shape factors that have simple intuitive geometrical interpretations. Furthermore, these shape factors are shown to describe the statistics of received signal fluctuations in a fading multipath channel. Analytical expressions for level-crossing rate, average fade duration, envelope autocovariance, and coherence distance are all derived using the new shape factor theory and then applied to several classical examples for comparison

Keywords

computational complexity; fading channels; land mobile radio; multipath channels; radio receivers; statistical analysis; average fade duration; coherence distance; envelope autocovariance; geometrical interpretations; level-crossing rate; multipath channel; multipath shape factors; received signal fluctuations; small-scale fading wireless channels; spatial complexity; wireless receiver; Density measurement; Fading; Fluctuations; Helium; Mobile communication; Multipath channels; Scattering; Shape; Statistical analysis; Statistics;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.855486

Filename

855486