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Aiming at the defect of traditional risk priority number (RPN) method in FMECA, a RPN assessment method is put forward which bases on the fault propagation probability and cost, then a corrective actions choice method is presented by gray correlation theory. Firstly, the occurrence probability and cost are calculated according to fault propagation tree. RPN is assessed by the overall risk of the events...
We consider using trust information to improve the anonymity provided by onion-routing networks. In particular, we introduce a model of trust in network nodes and use it to design path-selection strategies that minimize the probability that the adversary can successfully control the entrance to and exit from the network. This minimizes the chance that the adversary can observe and correlate patterns...
New, exact expressions for the bivariate Nakagami-q (Hoyt) processes with arbitrary correlation in a nonstationary environment are derived. More specifically, the following are obtained: joint probability density function, joint cumulative distribution function, power correlation coefficient, and some statistics related to the signal-to-noise ratio at the output of the selection combiner, namely,...
We propose a class of medium access control (MAC) protocols that utilize users' own transmission decisions and feedback information from the past slots. We consider an idealized slotted Aloha system and formulate the problem of a protocol designer who cares about the total throughput, the short-term fairness, and the complexity of protocols. A solution to the protocol designer's problem is provided...
In this paper the performance analysis of signal-to-interference ratio (SIR) based Selection Combining (SC) diversity system over alpha-mu fading distributed and correlated channels is presented. Formulae for the output SIRpsilas probability density function (pdf) and cumulative distribution function (cdf) are derived. Also, the results presented in the paper include all important scenarios of triple...
Radio Frequency Identification (RFID) systems are gaining momentum in various applications of logistics, inventory, etc. A generic problem in such systems is to ensure that the RFID readers can reliably read a set of RFID tags, such that the probability of missing tags stays below an acceptable value. A tag may be missing (left unread) due to errors in the communication link towards the reader e.g...
Chances to detect assembly activity are expected to increase if the spiking activities of large numbers of neurons are recorded simultaneously. Although such massively parallel recordings are now becoming available, methods able to analyze such data for spike correlation are still rare, because it is often infeasible to extend methods developed for smaller data sets due to a combinatorial explosion...
To increase the detection probability of long PN code and decrease its acquisition time, a new method of prepositive chip phase synchronization was proposed based on the analysis of traditional acquisition algorithm. The chip phase is synchronized firstly according to the characteristic of three-order correlation before the synchronization of sequence. The results of theoretical analysis and simulation...
In this paper, a new method is proposed for predicting the future evolution of a time series of spacecraft telemetry data. Because such a time series has usually a non-stationary trend, nonlinear functional relationship between inputs and outputs and other uncertainties, an appropriate prediction model for spacecraft data is needed to set up. To this end, we analyze the characteristics of the Probability...
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