Three-dimensional multipath shape factors for spatial modeling of wireless channels

TitleThree-dimensional multipath shape factors for spatial modeling of wireless channels
Publication TypeJournal Article
Year of Publication2009
AuthorsDG Valchev, and D Brady
JournalIeee Transactions on Wireless Communications
Volume8
Start Page5542
Issue11
Pagination5542 - 5551
Date Published11/2009
Abstract

This paper develops a generalized theory of multipath shape factors used to study the small-scale fading statistics in three-dimensional non-omnidirectional multipath channels. Previous results for horizontal propagation channels are special cases of the present framework when the multipath angular power density (APD) and the travel direction of the mobile unit are confined to a plane. The three-dimensional multipath shape factors are derived in terms of the first three degrees of unnormalized spherical harmonics of the APD. Based on the so derived shape factors, analytical expressions for the level crossing rate, average fade duration and approximate envelope correlation are derived for a Rayleigh fading three-dimensional channel. © 2009 IEEE.

DOI10.1109/TWC.2009.080988
Short TitleIeee Transactions on Wireless Communications