Báo cáo hóa học: "Research Article Higher-Order Cyclostationarity Detection for Spectrum Sensing" pdf

... computing the metrics used in spectrum sensing since the data transmission period does not provide information for the spectrum sensing. Therefore, in both cases, we can assume that the spectrum sensing is ... both the DP and approximate DP frameworks yield good performance for spectrum sensing. There are still many open problems for the selective spectrum sensing. Major open...

Ngày tải lên: 21/06/2014, 20:20

... exact method makes it infeasible for practical applications. Therefore, it is needed to derive an approximate solution for the success probability giving acceptable performance with minimal computational ... rely on the availability of extra hardware for periodic spectrum scanning. By formulating the channel selection problem as a multiarmed bandit problem, the spectrum- agile node c...

Ngày tải lên: 21/06/2014, 22:20

... calculated for both the final mask and each of the intermediate masks. WI x de- notes WI for single mask x and WI f is the WI for the final mask for each facial feature; WI x  denotes the average WI for ... notation M x k to denote the binary mask k of facial feature x,wherex is e for eyes, m for mouth, n for n ose, and b for eyebrows, and L x de- notes the respective lumina...

Ngày tải lên: 22/06/2014, 19:20

... modulation formats may be adopted for their simplic- ity. However, in broadband applications strong colored noise sources can severely limit the performance of single-carrier systems and demand for ... pages doi:10.1155/2007/32818 Research Article Linear Predictive Detection for Power Line Communications Impaired by Colored Noise Riccardo Pighi and Riccardo Raheli Dipartimento di In...

Ngày tải lên: 22/06/2014, 20:20

... first-order cyclostationarity. For example, by using the closed-form expressions for the temporal parameters of the nth-order cyclostationarity of SCLD signals [16], it is straightforward to obtain ... inferred: (i) for the same observation interval, a specified performance can be achieved with a lower SNR for AM and lower-order FSK modulated signals; (ii) the performance differential...

Ngày tải lên: 21/06/2014, 19:20

... improvement was considered for the original EVESPA. As expected, the performance of the proposed procedure is at its worse for low values of M and G where it is slightly outperformed by the original ... column. Therefore, the columns of E −† H = QZ match those of Q to within scale and permutation and a straightforward estimation of B becomes  B = E s  Q = E s E −† H . (15) 4. Performanc...

Ngày tải lên: 21/06/2014, 05:20

... p<∞. 1.3 In the following, L p  d−1  will always be one of the spaces L p  d−1  for 1 ≤ p<∞,orC d−1  for p  ∞. For an arbitrary number θ,0<θ<π, we define the spherical translation operator ... Corporation Journal of Inequalities and Applications Volume 2011, Article ID 434175, 7 pages doi:10.1155/2011/434175 Research Article Strong Converse Inequality for a Sph...

Ngày tải lên: 21/06/2014, 05:20

... true for n  1. Therefore 3.64 holds for each n ≥ 0. Given k ∈ N, note that lim n →∞ ψϕ n k exists. It follows that there exist constants M>0andn 0 ∈ N satisfying ψϕ n k <Mfor ... Corporation Fixed Point Theory and Applications Volume 2011, Article ID 701519, 30 pages doi:10.1155/2011/701519 Research Article Solvability and Algorithms for Functional Equations Origina...

Ngày tải lên: 21/06/2014, 05:20

... ≤  t 0 αHsds,fort ∈ I. Hindawi Publishing Corporation Advances in Difference Equations Volume 2011, Article ID 483816, 17 pages doi:10.1155/2011/483816 Research Article Nonlocal Cauchy Problem for Nonautonomous ... {x  y : x ∈ A, y ∈ B}. 7 αA  x 0 αA, for any x 0 ∈ X. For H ⊂ CI, X we define  t 0 H  s  ds    t 0 u  s  ds : u ∈ H  , 2.3 for t ∈ I,whereHs...

Ngày tải lên: 21/06/2014, 05:20

... implies that F  z  ≺ G  z  3.16 for the functions F and G defined by 3.6. Without loss of generality, we also can assume that G is analytic and univalent on and G  ζ /  0for| ζ|  1. For this purpose, ... chain if L·,t is analytic and univalent in for all t ∈ 0, ∞, Lz, · is continuously differentiable on 0, ∞ for all z ∈ ,andLz, s ≺ Lz, t for 0 ≤ s<t. Lemma...

Ngày tải lên: 21/06/2014, 05:20