Browsing by Author "Asyhari, A. Taufiq"

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GMI and Mismatched-CSI Outage Exponents in MIMO Block-Fading Channels
(2013-01-01)
Asyhari, A. Taufiq
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Fabregas, Albert Guillen I.
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交大名義發表
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National Chiao Tung University
We study transmission over multiple-antenna block-fading channels with imperfect channel state information at both the transmitter and receiver. Specifically, we investigate achievable rates based on the generalized mutual information. We then analyze the corresponding outage probability in the high signal-to-noise ratio regime.
MIMO Block-Fading Channels With Mismatched CSI
(2014-11-01)
Asyhari, A. Taufiq
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Guillen i Fabregas, Albert
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友訊交大聯合研發中心
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D Link NCTU Joint Res Ctr
We study transmission over multiple-input multiple-output block-fading channels with imperfect channel state information (CSI) at both the transmitter and receiver. In particular, based on mismatched decoding theory for a fixed channel realization, we investigate the largest achievable rates with independent and identically distributed inputs and the nearest neighbor decoder. We then study the corresponding information outage probability in the high signal-to-noise ratio (SNR) regime and analyze the interplay between estimation error variances at the transmitter and receiver to determine the optimal outage exponent, defined as the high-SNR slope of the outage probability plotted in a logarithmic-logarithmic scale against the SNR. We demonstrate that despite operating with imperfect CSI, power adaptation can offer substantial gains in terms of outage exponent.