Báo cáo hóa học: "Research Article An MMSE Approach to the Secrecy Capacity of the MIMO Gaussian Wiretap Channel" ppt

... secrecy capacity of the general MIMO Gaussian wiretap channel (1) can be reduced to character- izing the secrecy capacity of the canonical version (7). For full details the reader is referred to [7], ... K 1  K 2 is any path from K 1 to K 2 ). The proof of the lemma is given in Appendix A. 3. The Degraded MIMO Gaussian Wiretap Channel We first con...

Ngày tải lên: 21/06/2014, 23:20

... Chair Professor, Mathematics and Statistics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia 4 Department of Mathematics, National University of Ireland, Galway, ... is based on an approximation method together with the theory of upper and lower solutions. Copyright q 2009 Haishen L ¨ u et al. This is an open access article distributed un...

Ngày tải lên: 21/06/2014, 20:20

... have and uses the minimum threshold to adjust the current threshold of the host. The IHM component utilizes two structures to represent the monitored hosts and monitor the traffic of the network: the ... [11, 21]. If the duration of an attack is greater than the size of the time step, the NIDS is at risk of completely missing the attack. However, if th...

Ngày tải lên: 21/06/2014, 22:20

... with a diameter of 1 cm. The average distance between the antenna and the sand surface was 6 cm. The recorded data set is shown in Figure 13(a).Theresultof the d enoising process can be seen in ... D max , φ is the antenna divergence angle, and D max is the extension of O 2 . To satisfy the Nyquist-Shannon criterion along the scan trajectory, the separation between a...

Ngày tải lên: 21/06/2014, 07:20

... a vector going through the origin point and perpendicular to the separating hyperplane. The offset parameter β 0 is added to allow the margin to increase, and not to force the hyperplane to pass ... vital importance to many video content analysis applica- tions [1]. In spite of the voluminous existing literature on the analysis and interpretation of human motion m...

Ngày tải lên: 21/06/2014, 07:20

... Mitrinovi ´ c,andP.M.Vasi ´ c, Means and Their Inequalities, vol. 31 of Mathematics and Its Applications (East European Series), D. Reidel, Dordrecht, The Netherlands, 1988. 16 W. Janous, “A note ... continuous and increasing with respect to p ∈ R for fixed a and b. In the recent past, the generalized logarithmic mean has been the subject of 6 Journal of Inequalities and Appl...

Ngày tải lên: 21/06/2014, 07:20

... devoted to the derivation of an exact expression for the BEP of an M-PAM subject to Nakagami-m fading, while Section 6 deals with the derivation of an exact expression for the BEP of the I × ... tends to deviate from their corresponding exact values when the SNR is low. In spite of the attention devoted to the study of the BEP of QAM for an AWGN...

Ngày tải lên: 21/06/2014, 08:20

... (pdf) of the soft decision of the received bit. We will show that the hard decision is not needed to compute the BER and the total number of transmitted data needed is very small compared to the ... random variable ε having K as a pdf; (iii) Set Y = X i + εh ∗ N . These new realizations can be used to improve the accuracy of the estimator and therefore reduce th...

Ngày tải lên: 21/06/2014, 23:20

... order to simplify the development of fast transcoding method and to guarantee the transcoding per- formance. We define the attention area as a rectangle, whose size can be adaptively adjusted to the ... videos are adapted to the display size. How- ever, the details in frames, for example, the boat and the man, are too small to be recognized. The second line is th...

Ngày tải lên: 22/06/2014, 19:20

... of Gaussians can be written as a weighted sum of Gaussian densities. The observations of each state are described by the mean value μ i and the covariance  i of Gaussian density. The covariance ... requires human management to find and analyze attacks, make rules, and deploy the rules. The most serious disadvantage of these signature schemes is that it is difficult...

Ngày tải lên: 21/06/2014, 05:20