DocumentCode :
3559046
Title :
Outage Capacity of MIMO Poisson Fading Channels
Author :
Chakraborty, Kaushik ; Dey, Subhrakanti ; Franceschetti, Massimo
Author_Institution :
Qualcomm Inc., San Diego, CA
Volume :
54
Issue :
11
fYear :
2008
Firstpage :
4887
Lastpage :
4907
Abstract :
The information outage probability of a shot-noise limited direct detection multiple-input-multiple-output (MIMO) optical channel subject to block fading is considered. Information is transmitted over this channel by modulating the intensity of a number of optical signals, one corresponding to each transmit aperture, and individual photon arrivals are observed at multiple receive photodetector apertures. The transmitted signals undergo multiplicative fading. The fading occurs in coherence intervals of fixed duration in each of which the channel fade matrix remains constant, and changes across successive such intervals in an independent and identically distributed fashion. The transmitter and the receiver are assumed to be provided with perfect channel state information (CSI). An optimization formulation for the outage probability problem is outlined and an exact characterization of the optimal average conditional duty cycles is provided.
Keywords :
MIMO communication; channel capacity; fading channels; matrix algebra; optical links; probability; stochastic processes; MIMO Poisson fading channels; block fading; channel fade matrix; channel state information; duty cycles; information outage probability; multiple-input-multiple-output optical channel; optimization formulation; outage capacity; photon; receiver; shot-noise limited direct detection; transmitter; Apertures; Channel state information; Fading; Intensity modulation; MIMO; Optical detectors; Optical modulation; Optical receivers; Optical transmitters; Photodetectors; Channel state information; Poisson fading channel; free space optical communication; information outage probability; multiple-input–multiple-output (MIMO);
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.2008.929915
Filename :
4655438
Link To Document :
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