Browsing by Subject "Signal to noise ratio"
Now showing items 1-17 of 17
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Conference Object
Capacity for MIMO systems at low SNR
(2010)The paper introduces an asymptotic series expansion for the mutual information of Multiple-Input Multiple-Output (MIMO) channels. For low signal to noise ratio (SNR) the first term of expansion approaches mutual information ...
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Conference Object
Further results on optimal signaling over secure MIMO channels
(2013)Optimal signalling over the wire-tap MIMO Gaussian channel is studied under the total transmit power constraint. The recent results are extended in several directions, including a rank-deficient solution for the optimal ...
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Conference Object
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Article
Measurement of the decay amplitudes of B0 → J/ψK*0 and Bs 0 → J/ψφ decays
(2000)A full angular analysis of both the B0 and Bs 0 decay modes was carried out. For this analysis, the B0 → J/ψK*0 and Bs 0 → J/ψφ decays were reconstructed. The obtained data were analyzed in detail.
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Article
Mutual information expansion for MIMO systems and capacity formulae at low SNR
(2011)The paper introduces a new asymptotic series expansion for the mutual information of multiple-input multiple-output (MIMO) channels. The expansion approaches mutual information from below, and for low signal to noise ratio ...
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Article
Observation of the narrow state X(3872) → J/ψπ+π- in p̄p collisions at √s = 1.96 TeV
(2004)The observation of a state consistent with X(3872) decaying into J/ψπ+π- was reported. The X(3872) mass was measured to be 3871.3±0.7(stat)±0.4(syst)MeV/c2 from a sample of 730±90 candidates. The observed width was consistent ...
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Conference Object
On optimal signaling over secure MIMO channels
(2012)Optimal signalling over the wire-tap MIMO Gaussian channel is studied under the total transmit power constraint. A direct proof of the necessary condition of optimality (signaling on the positive directions of the difference ...
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Article
Optimal signaling for secure communications over Gaussian MIMO wiretap channels
(2016)Optimal signaling over the Gaussian multiple-input multiple-output wire-tap channel is studied under the total transmit power constraint. A closed-form solution for an optimal transmit covariance matrix is obtained when ...
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Article
Outage probability under channel distribution uncertainty
(2012)Outage probability and capacity of a class of block-fading MIMO channels are considered under partial channel distribution information. Specifically, the channel or its distribution is not known but the latter is known to ...
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Conference Object
Quality evaluation of ultrasound imaging in the carotid artery
(2004)Image quality assessment plays an important role in various image-processing applications. In this work we evaluate image quality criteria based on mean square error, signal to noise error, and quality and structural ...
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Article
Rank-Deficient Solutions for Optimal Signaling over Wiretap MIMO Channels
(2016)Capacity-achieving signaling strategies for the Gaussian wiretap multiple-input multple-output (MIMO) channel are investigated without the degradedness assumption. In addition to known solutions, a number of new rank-deficient ...
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Conference Object
Soft-decision decoding of linear block codes using efficient iterative G-space encodings
(2001)This paper proposes a sub-optimal maximum likelihood decoding algorithm for linear block codes. Given reliability information about each bit in the received word, our approach initially finds the set of most reliable "basis" ...
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Article
Soft-decision decoding of linear block codes using preprocessing and diversification
(2007)Order-w reprocessing is a suboptimal soft-decision decoding approach for binary linear block codes in which up to w bits are systematically flipped on the so-called most reliable (information) basis (MRB). This correspondence ...
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Conference Object
State space estimation of a wireless frequency-selective fading channel in Gaussian noise
(2002)This paper investigates the possibility of using the state space optimal estimation techniques to estimate the inphase, quadrature and square envelope of a wireless multipath fading channel when the transmitted signal is ...
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Conference Object
A Systems Approach to Channel Equalization
(2003)In this paper we present a control theoretic frame-work for channel equalization. Channel equalization methods are used to mitigate the effects of inter-symbol interference (ISI). Traditional methods, maximize the signal ...
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Conference Object
Wireless medical ultrasound video transmission through noisy channels
(2008)Recent advances in video compression such as the current state-of-the-art H.264/AVC standard in conjunction with increasingly available bitrate through new technologies like 3G, and WiMax have brought mobile health (m-Health) ...
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