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An analysis of the timed Z-channel
1998
IEEE Transactions on Information Theory
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We then give a detailed analysis of our timed Z-channel. We report a new result expressing the capacity of the timed Z-channel as the log of the root of a trinomial equation. ...
Our timed Z-channel a general case of the Zchannel appears as the basis for a large class of covert channels. ...
Acknowledgments The authors appreciate discussion and correspondence with Solomon Golomb, Jason Martin, John McLean, Bruce Montrose and the referees. ...
doi:10.1109/18.737549
fatcat:nfl2pkskvbf6jl4g4t5mbwafyy
An analysis of the timed Z-channel
Proceedings 1996 IEEE Symposium on Security and Privacy
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We then give a detailed analysis of our timed Z-channel. We report a new result expressing the capacity of the timed Z-channel as the log of the root of a trinomial equation. ...
Our timed Z-channel a general case of the Zchannel appears as the basis for a large class of covert channels. ...
In addition to the fact that the timed Z-channel is present in real scenarios, it is also, in general, a good basis for an analytical study of noisy timing channels. ...
doi:10.1109/secpri.1996.502664
dblp:conf/sp/MoskowitzGK96
fatcat:q64doakm3bcw5iukttgrep52yu
Time-Frequency Parameterization Of Doubly Dispersive Channels
2009
Zenodo
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Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland, 2009 ...
Let HP(z) denote the M × N polyphase matrix of an analysis filter bank, the jth element of the ith row of which is defined as Hij(z) = L−1 X l=0 W −i(j+lN ) M z −l G j+lN (z L ), (15) where WM = e 2π/ ...
The time-frequency (TF) dispersive nature of the channel suggests that TF analysis techniques [2] are ideally suited tools for processing signals transmitted over DD channels. ...
doi:10.5281/zenodo.41738
fatcat:nj5jpk4gsbfopbg25vzupx4eee
Water diffusion through a membrane protein channel: A first passage time approach
2007
Journal of Chemical Physics
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A first passage time approach allows characterizing the diffusive properties of a well-defined region of this channel. ...
Moreover, we observe the effect of a kinetic boundary layer, which is the counterpart of the initial ballistic regime in a mean square displacement analysis. ...
In our analysis this would be either the exit time from an initial axial position z 0 or the permeation time, with the simulation time of 10 ns as upper bound. ...
doi:10.1063/1.2761897
pmid:17764300
fatcat:fec7zwxvvnaazjndk3fiiynrze
Physical instrumental vetoes for gravitational-wave burst triggers
2007
Physical Review D
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We also show an example application of this method using 5 days of data from the fifth science run of GEO 600. ...
The main idea behind this method is that the noise in an instrumental channel X can be transferred to the detector output (channel H) using the transfer function from X to H, provided the noise coupling ...
LIGO-P070032-00-Z. ...
doi:10.1103/physrevd.76.042004
fatcat:a5fvlzmfargvronq6lq4ts4lda
Parametric survival analysis for gating kinetics of single potassium channels
1997
Brain Research
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The gating mechanism and the role of the S4 region in the activation of Shaker potassium channel was studied by statistical analysis on the wild type and mutant channels which have mutations in the S4 ...
The first latency time was analyzed with a parametric survival time regression model in which the generalized gamma distribution for the error term was assumed. ...
Diane Papazian for her support of this work and allowing the author to use the resources of her lab, Dr. Donald Guthrie for his advice on this project, and Mr. ...
doi:10.1016/s0006-8993(97)00760-9
pmid:9372208
fatcat:m4dz4wy36nd3nnpntlimnco4ge
Communication system model for information rate evaluation of differential detection over time-varying channels
2008
IET Communications
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Using such a model, one is able to calculate mutual information for differential detection over time-varying fading channels with an essentially finite time set of correlations, including the Clarke fading ...
A communication system model for mutual information performance analysis of multiple-symbol differential M-phase shift keying over time-correlated, time-varying flat-fading communication channels is developed ...
Whereas independent fading model underestimates the channel information capacity, the block model does not permit an analysis of channel process time-correlation effects upon the mutual information performance ...
doi:10.1049/iet-com:20070610
fatcat:fvyqaunk3nccvahyn5u6yltylu
Delay Analysis of OFDMA-Aloha
2013
IEEE Transactions on Wireless Communications
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The above gives rise to a fundamental question: whether to use a single wide-band Aloha channel and retransmit via random back-off in next K time slots, or to retransmit immediately in one of K narrow-band ...
Then, we extend the analysis to the unsaturated case and derive the mean queue length and packet delay by decomposing the system of interfering queues into multiple independent queues utilizing the symmetry ...
Contention Analysis We first start with the contention analysis of Aloha to obtain X 1 (z), the service time distribution, of the tagged user in terms of the busy probability: p b , or equivalently the ...
doi:10.1109/twc.2012.113012.111776
fatcat:4yivtepnvjej3ojofvsvkp3cwi
First-passage-time analysis of atomic-resolution simulations of the ionic transport in a bacterial porin
2011
Physical Review E
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of the channel. ...
We have studied the dynamics of chloride and potassium ions in the interior of the Outer membrane porin F (OmpF) under the influence of an external electric field. ...
ACKNOWLEDGMENTS This work is supported by the Spanish Government ...
doi:10.1103/physreve.83.021908
pmid:21405864
fatcat:t6fhzfab2bddlc7u3fytssyjfq
Analysis of Selective-Repeat ARQ via Matrix Signal-Flow Graphs
2007
IEEE Transactions on Communications
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We solve a wider class of problems by characterizing both the forward and reverse channels by general Hidden Markov Models (HMM). ...
In this work, we present a new method to analyze the throughput and delay of Selective Repeat (SR) ARQ protocol. ...
For the purposes of our analysis, it is useful to define the joint probabilities of channel state and observation at time t, given the channel state at time t − 1 P r(S t = j, X t = 1 | S t−1 = i) = P ...
doi:10.1109/tcomm.2006.885092
fatcat:r2twzvoufrd6tad7dv4tonik4m
Basic binary state-space model for time-varying communication channels: uncertainty and information capacity
2007
IET Communications
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The mutual information rate over the TV-BSC, assuming channel estimation in the presence of channel noise, is shown to be below the channel information capacity because of lack of perfect channel knowledge ...
Simulation analysis corroborates the theoretical results, showing that multiple-symbol differential detection practically achieves the TV-BSC capacity in just a few symbol observation times. ...
As an alternative to modelling a communication channel at the physical level, model design can be formulated for the purpose of system performance analysis. ...
doi:10.1049/iet-com:20060477
fatcat:ahtmzpo3efcmlfa7hz76fkybey
A Class Of Perfect-Reconstruction Nonuniform Cosine-Modulated Filter-Banks With Dynamic Recombination
2002
Zenodo
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Publication in the conference proceedings of EUSIPCO, Toulouse, France, 2002 ...
The analysis filters are linear time periodic varying. In the case where L and s m are coprime, each subband of the nonuniform FB will have an equivalent LTI filter representation. ...
The first part of (1) is the desired signal component that will be generated by an ordinary LTI analysis filter. ...
doi:10.5281/zenodo.37985
fatcat:igcxgzjotfar5io3itsypetrsu
Analysis and Properties of Time-Varying Modified DFT Filter Banks
2010
EURASIP Journal on Advances in Signal Processing
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We provide a comprehensive analysis of the time-varying modified DFT (MDFT) filter bank based on the general time-varying filter bank theories (Wang ...
Acknowledgment This work is supported by the National Natural Science Foundation of China (no. 61071195). ...
is the integer part of n/M.Figure 6 shows an M-channel time-varying MDFT filter bank. ...
doi:10.1155/2010/342865
fatcat:7i6g52o66nbp3cjavpsv75a3xe
Data fusion-based distributed Prony analysis
2017
Electric power systems research
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A key technical challenge to implement Prony analysis for signals from multiple channels is the difficulty to identify the noise characteristics of each channel. ...
Prony analysis for multiple channels which requires a bandwidth of 30 Hz. ...
of the system in discrete time domain, and B i is the residue of z i . z i can be expressed as: z i = e i t (7) Due to the fact that k = 1, . . ., N, (6) can be expressed in matrix form as: ⎡ ⎢ ⎢ ⎢ ⎢ ...
doi:10.1016/j.epsr.2016.10.052
fatcat:bf227euqhzheto2jviksxdhjn4
A simultaneous spectral invariant analysis of the GRB count distribution and time dilation
1996
AIP Conference Proceedings
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This adds a spectral dependence to the count distribution N(C). Similarly variation of the duration as a function of energy at the source complicates the time dilation analysis. ...
The outcome of this analysis is a single best fit value for the redshift of the observed bursts. ...
Once more, self consistency requires that similar results are obtained when using different energy channels. A JOINT ANALYSIS OF TIME-DILATION. ...
doi:10.1063/1.51560
fatcat:jdpm4zwaorgijbuhw4s6kexkvi
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