Báo cáo hóa học: "Research Article Joint Video Summarization and Transmission Adaptation for Energy-Efficient Wireless Video Streaming" pptx
Báo cáo hóa học: " Research Article Joint Sensing Period and Transmission Time Optimization for Energy-Constrained Cognitive Radios" doc
... increases.EURASIP Journal on Wireless Communications and Networking 13Because for any x>0, ex> 1+x and e−x∈ (0,1), thus, for any ρ0≥ 0andT>0, we can obtain ∂h(ρ0, T)/∂T > 0and ∂h(ρ0, T)/∂ρ0> ... results areOFF) and transmits in both “OFF slots” and “ON slots”.The optimal allocation of sensing period and trans-mission time for two access policies are formulated and the closed-form solutions ... problem formulationin Section 2, the mathematical model and its the optimalallocation of sensing period and transmission time for twodifferent access policies are derived in Sections 3 and 4,respectively....
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Báo cáo hóa học: " Research Article Joint NC-ARQ and AMC for QoS-Guaranteed Mobile Multicast" docx
... Jenkaˇc, and C. Weiß, “Feedback and error protection strategies for wireless progressive video transmission, ” IEEE Transactions on Circuits and Systems for Video Technology, vol. 12, no. 6, ... IEEE Wireless Communications and Networking Conference (WCNC ’08),pp.1588–1592, March 2008.[2] H. Wang, H. P. Schwefel, and T. S. Toftegaard, “T he optimal joint power and rate adaptation for ... n),(18)where n= 1, 2, η(L = 1) = 1/2, and T = 3/2forpacketsD2, D4, D5,andD10while η(L = 2) = 1andT = 2forpacketD7.The expected number of transmissions for an arbitrarypacket is given...
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Báo cáo hóa học: "Research Article Joint Signal Detection and Classification Based on First-Order Cyclostationarity For Cognitive Radios" pot
... inferred: (i) for the same observation interval, a specified performance canbe achieved with a lower SNR for AM and lower-order FSKmodulated signals; (ii) the performance differential for theproposed ... I{·} denotes the Fourier transform. Convolution and change of variables are, respectively, performed at the second and fourth steps in the right hand-side of (A.3), and theidentity I{iδ(u ... theFourier transform of the signal. Given reasonable a prioriinformation about the signal, this algorithm was reported tohave performed well for positive SNRs. Another scheme for FSK and AM signal...
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báo cáo hóa học:" Research Article Random Bit Flipping and EXIT Charts for Nonuniform Binary Sources and Joint Source-Channel Turbo Systems" docx
... pagesdoi:10.1155/2009/354107Research Article Random Bit Flipping and EXIT Charts for Nonuniform BinarySources and Joint Source-Channel Turbo SystemsXavier Jaspar1 and Luc Vandendorpe21Laborelec, Rodestraat ... original EXIT charts to nonuniform bits. The second one uses a random bit flipping to make the bits virtuallyuniform and has two interesting advantages: (1) it handles straightforwardly outer codes with ... Indeed,under these assumptions, transformations to obtain theFEXIT chart from the BEXIT chart, and vice versa, are givenin (X) and (XI) and Tab le 1.Toprove(X)andTa ble 1,letus consider LsIgivenin(I),Tab...
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Báo cáo hóa học: " Research Article Motion Vector Sharing and Bitrate Allocation for 3D Video-Plus-Depth Coding" docx
... strategies for MV encoding: (a) separate MV for texture and depth map and (b) a common MV field for texture and depth sequences.test sequences are encoded, according to their own resolution and frame ... Conclusion and Future WorkThis paper presented a novel method for the coding the video- plus-depth data by means of a joint estimation ofthe MV field for the texture motion information and thedepth ... P. Merkle, A. Smolic, K. M¨uller, and T. Wiegand, “Efficientprediction structures for multiview video coding,” IEEETransactions on Circuits and Systems for Video Technology, vol.17, no. 11,...
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Báo cáo hóa học: " Research Article Joint Throughput Maximization and Fair Uplink Transmission Scheduling in CDMA Systems" potx
... CorporationEURASIP Journal on Wireless Communications and NetworkingVolume 2009, Article ID 564692, 15 pagesdoi:10.1155/2009/564692Research Article Joint Throughput Maximization and Fair Uplink Transmission Scheduling ... algorithm on its operation and achievableperformance and allow us to obtain a better understandingof its operational characteristics and properties. Then inSections 4.2.3 and 4.2.4, comparative ... w∗i and therefore controlling and maintaining fairness.4. Performance EvaluationIn this section, we evaluate the performance of the proposedmethod in terms of the achievable fairness and through-put,...
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Báo cáo hóa học: " Research Article A Motion-Compensated Overcomplete Temporal Decomposition for Multiple Description Scalable Video Coding" pot
... M. Fumagalli, R. Lancini, and S. Tubaro, “Multipledescription video coding for scalable and robust transmission over IP,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 15, ... W.S.Lee,M.R.Pickering,M.R.Frater,andJ.F.Arnold,“Arobust codec for transmission of very low bit-rate video overchannels with bursty errors,” IEEE Transactions on Circuits and Systems for Video Technology, ... on Image and Video Processing[16] Y. Wang and S. Lin, “Error-resilient video coding using mul-tiple description motion compensation,” IEEE Transactions onCircuits and Systems for Video Technology,vol.12,no.6,pp.438–452,...
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Báo cáo hóa học: " Research Article Block-Matching Translational and Rotational Motion Compensated Prediction Using Interpolated Reference Frame" pptx
... searches, we found thatusing a larger angle interval performs better for complexmotion sequences, for example, Foreman. For small motionsequences, for example, Akiyo, using a smaller interval anglehas ... which is adopted in thelatest video coding standards, performs block matching oninterpolated reference frames. For example, 1/4-pixel and 1/8-pixel MCP require 4 and 8 times interpolated referenceframes ... videos, for example, the rotation of car wheel and waving of hand, and so forth. Moreover, many complex motions can be modeledby translational and rotational motion combined. Figure 1gives...
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Báo cáo hóa học: " Research Article Multiplicity of Positive and Nodal Solutions for Nonhomogeneous Elliptic Problems in Unbounded Cylinder Domains" pdf
... of problem 1.2,theni u ∈ LqΩ for all q ∈ 2, ∞;ii uy, z → 0 as |z|→0 uniformly for y ∈ ω and u ∈ C1,αΩ for any 0 <α<1;iii for any ∈ 0, 1 μ1, there exist positive ... may assume R0 R ,and ∈ 0, δ0 where R0, R and δ0are given in f3 and a3, respectively.Boundary Value Problems 15Lemma 4.2. Assume a1, a3 and f1–f3 hold. For any fixed k>1,thereexists>0,t>0such ... ProblemsIt is assumed that ax and fx satisfy the following assumptions:a1 ax is continuous and ax ∈ 0, 1 onΩ, and lim|z|→∞ax 1 uniformly for y ∈ ω; 1.3f 1 fx ≥...
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báo cáo hóa học:" Research Article Motion Pattern Extraction and Event Detection for Automatic Visual Surveillance" doc
... learning and analysis for surveillance,” IEEETransactions on Circuits and Systems for Video Technology,vol.18, no. 8, Article ID 4543858, pp. 1114–1127, 2008.[9] L.Li,W.Huang,I.Y.H.Gu,andQ.Tian,“Foregroundobjectdetection ... 0.05 for the walkingevent, and 0.95 for the running event, since there is 95%probability for a value to be comprised between μ− 2σ and μ +2σ where μ and σ are, respectively, the mean and thestandard ... where the running and merging eventsoccur. The dataset was split into a training set (75%) and atesting set (25%). For both c ategories of events, the randomforest classifier performed best. We...
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