Modeling of nondirected wireless infrared channels

Author

Carruthers, Jeffrey B. ; Kahn, Joseph M.

Author_Institution

Dept. of Electr. & Comput. Eng., Boston Univ., MA, USA

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1260

Lastpage

1268

Abstract

We show that realistic multipath infrared channels can be characterized well by only two parameters: optical path loss and RMS delay spread. Functional models for the impulse response, based on infrared reflection properties, are proposed and analyzed. Using the ceiling-bounce functional model, we develop a computationally efficient method to predict the path loss and multipath power requirement of diffuse links based on the locations of the transmitter and receiver within a room. Use of our model is a simple, yet accurate, alternative to the use of an ensemble of measured channel responses in evaluating the impact of multipath distortion

Keywords

delays; multipath channels; optical communication; optical links; optical losses; optical noise; transient response; RMS delay spread; ceiling-bounce functional model; diffuse links; impulse response; indoor communication; infrared reflection properties; multipath distortion; multipath infrared channels; multipath power requirement; nondirected wireless infrared channels; optical path loss; room; High speed optical techniques; Infrared detectors; Intensity modulation; Optical distortion; Optical losses; Optical receivers; Optical transmitters; Photodetectors; Power system modeling; Predictive models;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.634690

Filename

634690