Báo cáo hóa học: " Research Article Bandwidth Extension of Telephone Speech Aided by Data Embedding" pptx

Báo cáo hóa học: " Research Article Bandwidth Extension of Telephone Speech Aided by Data Embedding" pptx

Báo cáo hóa học: " Research Article Bandwidth Extension of Telephone Speech Aided by Data Embedding" pptx

... Processing Volume 2007, Article ID 64921, 16 pages doi:10.1155/2007/64921 Research Article Bandwidth Extension of Telephone Speech Aided by Data Embedding Ariel Sagi and David Malah Department of Electrical ... sound of the so-called telephone speech. Listening tests have shown that the speech bandwidth affects the perceived speech quality [1]. Artificially ex...
Ngày tải lên : 22/06/2014, 23:20
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Báo cáo hóa học: " Research Article Bandwidth-Efficient Cooperative Relaying Schemes with Multiantenna Relay" pptx

Báo cáo hóa học: " Research Article Bandwidth-Efficient Cooperative Relaying Schemes with Multiantenna Relay" pptx

... time slot (T +1)required to relay all decoded signals of T sources, the bandwidth efficiency of the proposed schemes is reduced by a factor of T/(T + 1) as compared to 1/2 for the conventional schemes in ... by the following simulation results. For the purpose of illustration, we investigate the case of T = 3. For a fair comparison in terms of bandwidth efficiency, the direct...
Ngày tải lên : 21/06/2014, 22:20
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Báo cáo hóa học: " Research Article Bandwidth Impacts of Localizing Peer-to-Peer IP Video Traffic in Access and Aggregation Networks" ppt

Báo cáo hóa học: " Research Article Bandwidth Impacts of Localizing Peer-to-Peer IP Video Traffic in Access and Aggregation Networks" ppt

... approximately 56% of total band- width, while the top 20% of active subscribers consumed more than 97% of total bandwidth. P2P was by far the largest consumer of bandwidth with 65.5% of traffic on the ... scale, 46% of P2P trafficwasvideoinMicrosoft formats. 65% of all audio files by volume of trafficwerestill traded in the MP3 format, and 12.3% were in the open- source OGG fil...
Ngày tải lên : 21/06/2014, 23:20
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Báo cáo hóa học: "Research Article An Extension of Gregus Fixed Point Theorem" ppt

Báo cáo hóa học: "Research Article An Extension of Gregus Fixed Point Theorem" ppt

... iteration sequence [16]ofaclassofquasi- contractive operators, called Zamfirescu operators, defined on a closed convex subset C of aBanachspaceX converges to the fixed point of T. The first author ... generalization of Gregu ˇ s fixed point theorem,” Journal of Applied Sciences, vol. 6, no. 15, pp. 3160–3163, 2006. [5] C. E. Chidume, “Geometric properties of Banach spaces and nonlinear i...
Ngày tải lên : 22/06/2014, 22:20
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Báo cáo hóa học: "Research Article An Extension of Gregus Fixed Point Theorem" pot

Báo cáo hóa học: "Research Article An Extension of Gregus Fixed Point Theorem" pot

... University of Lagos, P.O. Box 31, Lagos, Nigeria Hindawi Publishing Corporation Fixed Point Theory and Applications Volume 2007, Article ID 78628, 8 pages doi:10.1155/2007/78628 Research Article An Extension ... is a generalization and an extension of the results of several authors, is proved in this paper. In addition, we use the Mann iteration to approximate the fixed point...
Ngày tải lên : 22/06/2014, 22:20
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báo cáo hóa học:" Research Article Exponential Stability of Two Coupled Second-Order Evolution Equations" pptx

báo cáo hóa học:" Research Article Exponential Stability of Two Coupled Second-Order Evolution Equations" pptx

... inner product and norm. Here, we denote by ∂ t u the time derivative of u and by Δu the Laplacian of u with respect to space variable ξ. Define A : DA ⊂ H → H by A Δ 2 , with D  A   H 4  Ω  ∩ ... supported partially by the NSF of China 10771202, 11071042, the Research Fund for Shanghai Key Laboratory for Contemporary Applied Mathematics 08DZ2271900 and the Specializ...
Ngày tải lên : 21/06/2014, 11:20
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báo cáo hóa học:" Research Article Performance Study of Objective Speech Quality Measurement for Modern Wireless-VoIP " ppt

báo cáo hóa học:" Research Article Performance Study of Objective Speech Quality Measurement for Modern Wireless-VoIP " ppt

... 2003. [7] S. Pennock, “Accuracy of the perceptual evaluation of speech quality (PESQ) algorithm,” in Proceedings of the International Conference on Measurement of Speech and Audio Quality in Networks ... focus of more recent quality measurement research (e.g., see [12, 32]). 6. Conclusions We have investigated the effects of wireless-VoIP degrada- tion on the performance of...
Ngày tải lên : 21/06/2014, 20:20
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Báo cáo hóa học: " Research Article Bandwidth Optimization in Centralized WLANs for Different Traffic Types" pdf

Báo cáo hóa học: " Research Article Bandwidth Optimization in Centralized WLANs for Different Traffic Types" pdf

... transmission of a packet and the transmission by the receiving station of its ac- knowledgment. Transmission of this acknowledgement has the highest priorit y of any packet (as it is the only means by which ... is that of nonlinear optimization of an abstrac ted model of the data exchanges on the superframe [23]. Nonlinear optimization theory pro- vides a number of means...
Ngày tải lên : 22/06/2014, 19:20
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Báo cáo hóa học: " Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales" pptx

Báo cáo hóa học: " Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales" pptx

... 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 ... G  u  T    t T p  τ  Δτ ≤ G  u  T   P. 2.53 The rest of the proof is similar to that of Theorem 2.8, and the details are omitted. The proof is completed. Theorem...
Ngày tải lên : 21/06/2014, 05:20
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Báo cáo hóa học: "Research Article Composition Theorems of Stepanov Almost Periodic Functions and Stepanov-Like Pseudo-Almost Periodic Functions" potx

Báo cáo hóa học: "Research Article Composition Theorems of Stepanov Almost Periodic Functions and Stepanov-Like Pseudo-Almost Periodic Functions" potx

... holds. Acknowledgments The work was supported by the NSF of China, the Key Project of Chinese Ministry of Education, the NSF of Jiangxi Province of China, the Youth Foundation of Jiangxi Provincial Education ... Difference Equations 11 By 13, Theorem 2.3 we have F 1 u ∈ APX. In addition, by a similar proof to that of 2, Theorem 3.2, one can obtain that F 2 u ∈ PAP...
Ngày tải lên : 21/06/2014, 05:20
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