DocumentCode :
780876
Title :
MIMO characterization of indoor wireless optical link using a diffuse-transmission configuration
Author :
Alqudah, Yazan A. ; Kavehrad, Mohsen
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Volume :
51
Issue :
9
fYear :
2003
Firstpage :
1554
Lastpage :
1560
Abstract :
Performance of a diffuse optical link may potentially be degraded by temporal dispersions resulting from surface reflections. In order to devise techniques to alleviate the adverse effect of dispersion, an accurate channel model is needed. Obtaining the impulse response (IR) for a given receiver location requires consideration not only of the direct path, but also of reflections up to nth order. The IR is only valid for a specific location and specific receiver parameters. If a receiver moves, the IR has to be recalculated. We propose a new approach for characterizing diffuse links that results in a tremendous saving in calculation and also gives more insight into the channel characteristics. The new approach is based on consolidating the dependence of receiver parameters, transmitter parameters, and the indoor environment into independent components. Thus, changing one of the parameters of the link requires recalculation of one of these components. The new model is utilized to obtain an accurate profile of delay spread and received power throughout a room.
Keywords :
MIMO systems; delays; light reflection; optical communication; optical dispersion; optical links; optical receivers; optical transmitters; transient response; MIMO characterization; delay spread; diffuse optical link; impulse response; indoor wireless optical link; received power; receiver location; receiver parameters; surface reflections; temporal dispersions; transmitter parameters; Dispersion; Indoor environments; MIMO; Optical fiber communication; Optical losses; Optical receivers; Optical reflection; Optical sensors; Optical transmitters; Radio transmitters;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2003.816945
Filename :
1231653
Link To Document :
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