DocumentCode
645202
Title
An asymptotic approximate solution to the distribution of the capacity outage intervals in OSTBC-MIMO Rayleigh fading channels
Author
Youssef, Neji ; Rafiq, Gulzaib ; Hicheri, Rym ; Kawabata, Tsutomu ; Patzold, Matthias
Author_Institution
Université de Carthage, Ecole Supérieure des Communications de Tunis, 2083 EL Ghazala, Ariana, Tunisia
fYear
2013
fDate
8-11 Sept. 2013
Firstpage
1291
Lastpage
1295
Abstract
This paper deals with the study of asymptotic probability density functions (PDFs) of the outage durations of the instantaneous capacity (also referred to as the mutual information) in orthogonal space-time block code (OSTBC) transceiver systems over multiple-input multiple-output (MIMO) Rayleigh fading channels. The Rayleigh fading subchannels are assumed to be frequency-nonselective and mutually uncorrelated, whereas the associated Doppler power spectral density is supposed to be symmetric about the origin. In addition, the channel state information (CSI) is considered to be available only at the receiver side. Taking these assumptions into account, and drawing upon known statistical properties for the asymptotic behavior of chi-square processes at low levels, we provide a closed-form approximate solution for the PDF of the outage intervals of the underlying capacity processes. Furthermore, an analytical expression is also provided for the kth-order moments of the outage intervals. These statistical quantities will as well be shown to be useful for studying the statistics of the capacity outage durations of single-input multiple-output (SIMO) and multiple-input single-output (MISO) systems. The validity of the obtained approximate asymptotic solutions has been confirmed by means of computer simulations.
Keywords
Approximation methods; Correlation; MIMO; Random variables; Rayleigh channels; Simulation; MIMO channels; OSTBC-MIMO systems; Rayleigh fading model; capacity processes; outage duration;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal Indoor and Mobile Radio Communications (PIMRC), 2013 IEEE 24th International Symposium on
Conference_Location
London, United Kingdom
ISSN
2166-9570
Type
conf
DOI
10.1109/PIMRC.2013.6666338
Filename
6666338
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