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AuthorNouri, Hatef
AuthorTouati, Farid
AuthorUysal, Murat
Available date2021-09-01T10:02:48Z
Publication Date2016
Publication NameIEEE Transactions on Communications
ResourceScopus
URIhttp://dx.doi.org/10.1109/TCOMM.2016.2575019
URIhttp://hdl.handle.net/10576/22409
AbstractAlthough there has been a growing interest on the study of diversity-multiplexing tradeoff (DMT), the existing works are mostly restricted to the outcomes reported for Rayleigh, Rician, and Nakagami fading channels. In this paper, we investigate the optimal tradeoff in the presence of log-normal fading, which provides an accurate model for indoor wireless, optical wireless, and ultra-wideband channels. We consider a multiple-input multiple-output (MIMO) log-normal channel, derive the outage probability expression, and then present the asymptotical DMT expression. It is shown that the asymptotical maximum diversity gain tends to infinity with logarithm of signal-to-noise ratio (SNR). To have further insight, we normalize the DMT with that of single-input single-output case and express the relative asymptotical DMT of the MIMO log-normal channel as a function of the number of transmit and receive antennas. We further study DMT for finite SNRs and demonstrate convergence to the asymptotical case. Extensive numerical results are provided to corroborate the analytical derivation.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectChannel estimation
Codes (symbols)
Communication channels (information theory)
Fading channels
Feedback control
MIMO systems
Multiplexing
Optical communication
Receiving antennas
Telecommunication repeaters
Ultra-wideband (UWB)
Diversity-multiplexing trade-off
Diversity-multiplexing tradeoffs (DMT)
Log-normal channels
Log-normal fading
Nakagami fading channel
Outage probability
Single input single output case
Ultra-wideband channels
Signal to noise ratio
TitleDiversity-multiplexing tradeoff for log-normal fading channels
TypeArticle
Pagination3119-3129
Issue Number7
Volume Number64
dc.accessType Abstract Only


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