Báo cáo hóa học: "Research Article Asymptotic Analysis of Large Cooperative Relay Networks Using Random Matrix Theory" pptx

... Signal Processing Volume 2008, Article ID 235867, 15 pages doi:10.1155/2008/235867 Research Article Asymptotic Analysis of Large Cooperative Relay Networks Using Random Matrix Theor y Husheng Li, 1 Z. ... the basics of random matrix theory are discussed in Section 3.InSection 4,weanalyze the asymptotic performance and construct an upper bound for cooperative...

Ngày tải lên: 21/06/2014, 22:20

... two flavors of OFDM systems: one simply identified as Orthog- onal Frequency Division Multiplexing (OFDM), the other Orthogonal Frequency Division Multiple Access (OFDMA). OFDMA is considered to be one of ... Communications and Networking Volume 2009, Article ID 147231, 8 pages doi:10.1155/2009/147231 Research Article Throughput Analysis of Band-AMC Scheme in Broadband Wireless OFDM...

Ngày tải lên: 21/06/2014, 23:20

... throughput of a large wireless net- work has been a topic of great interest. A large wireless net- work can take many possible forms in practice, which in- clude large sensor networks, large ad hoc networks, ... pages doi:10.1155/2007/26760 Research Article Throughput Analysis of Large Wireless Networks with Regular Topologies Kezhu Hong and Yingbo Hua Department of...

Ngày tải lên: 22/06/2014, 19:20

... 2011, Article ID 237219, 14 pages doi:10.1155/2011/237219 Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales Taixiang Sun, 1 Hongjian Xi, 2 and Xiaofeng ... scales,” Abstract and Applied Analysis, vol. 2010, Article ID 428963, 16 pages, 2010. 19 L. Erbe, A. Peterson, and S. H. Saker, Asymptotic behavior of solutions of a thir...

Ngày tải lên: 21/06/2014, 05:20

... as the sum of squares of 2m i independent Gaussian random variables which means that the covariance matrix of the total SNR can be expressed by (2  K i =1 m i ) × (2  K i =1 m i ) matrix with ... effects of fading, number of dispersed bands, modulation, and coding on the performance of dispersed spectrum cognitive radio systems. The results show that the effects of fading,...

Ngày tải lên: 21/06/2014, 05:20

... of Inequalities and Applications Volume 2010, Article ID 764703, 11 pages doi:10.1155/2010/764703 Research Article Asymptotic Behavior of a Periodic Diffusion System Songsong Li 1, 2 and Xiaofeng ... class of degenerate parabolic problems,” Houston Journal of Mathematics, vol. 21, no. 2, pp. 367–394, 1995. 12 J. B. Sun, B. Y. Wu, and D. Z. Zhang, Asymptotic behavior of solu...

Ngày tải lên: 21/06/2014, 07:20

... of the proposed algorithm for α = 0.2andα = 0.8, respectively, for an SNR of 10 dB. InthecaseofanSNRof20dB,Figures9 and 10 depict the results. The case of α = 0.2isshowninFigure9 while that of ... QΛQ T , (30) where Λ is the diagonal matrix of eigenvalues Λ = diag ( λ 1 , λ 2 , , λ N ) , (31) and Q is the orthonormal matrix whose ith column is the eigenvector of R associated w...

Ngày tải lên: 21/06/2014, 08:20

... nonlinear structure. Computations are performed using the software package Matlab 7.1. We have dealt with the problem of global asymptotic stability analysis for a class of nonlinear difference equation. The ... difference equations has been an area of intense interest in recent years. There has been a lot of work concerning the globally asymptotic behavior of solutions of r...

Ngày tải lên: 21/06/2014, 11:20

... x 2 t ≥ q for all large t. In the second case. In view of our above discussion, the choice of q is independent of the positive solution, and we proved that any positive solution of 2.3 satisfies ... the rate of conversion of nutrients into the reproduction rate of the predators. T he predator population is birth pulse as intrinsic rate of natural increase and density depe...

Ngày tải lên: 21/06/2014, 11:20

... vector sent by the relay where G is a relay gain. As categorized in the literature, relay gains may be fixed or variable. In this paper, variable relay gain is considered. Relay gains can be further ... h T RD Gn R + E D . (3) Using maximum likelihood (ML) detection of OSTBCs for the case of spatially colored noise given in [11], the received SNRisobtainedasfollows. Theorem 1....

Ngày tải lên: 21/06/2014, 11:20