title: First-principles model of time-dependent variations in transmission through a fluctuating scattering environment.
abstract: Fading is the time-dependent variation in transmitted signal strength through a complex medium due to interference or temporally evolving multipath scattering. In this paper we use random matrix theory (RMT) to establish a first-principles model for fading, including both universal and nonuniversal effects. This model provides a more general understanding of the most common statistical models (Rayleigh fading and Rice fading) and provides a detailed physical basis for their parameters. We also report experimental tests on two ray-chaotic microwave cavities. The results show that our RMT model agrees with the Rayleigh and Rice models in the high-loss regime, but there are strong deviations in low-loss systems where the RMT approach describes the data well.
authors.affiliation: Electrical and Computer Engineering Department, University of Maryland, College Park, Maryland 20742-3285, USA.
authors.forename: Jen-Hao
authors.initials: JH
authors.lastname: Yeh
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Antonsen
authors.forename: Edward
authors.initials: E
authors.lastname: Ott
authors.forename: Steven M
authors.initials: SM
authors.lastname: Anlage