Báo cáo hóa học: " Research Article Cross-Layer Design for Video Transmission over Wireless Rician Slow-Fading Channels Using an Adaptive Multiresolution Modulation and Coding Scheme" pptx
Báo cáo hóa học: " Research Article Collaborative Image Coding and Transmission over Wireless Sensor Networks" potx
... processing, wireless image /video transmission, and wireless sensor network.He is a member of Sigma Xi and IEEE, and was named one of thethree finalists for 2003 Association for the Advancement ... that theenergy for image transmission can indeed be greatly reduced with collaborative image coding and transmission. Copyright © 2007 M. Wu and C. W. Chen. This is an open access article distributed ... Advances in Signal ProcessingVolume 2007, Article ID 70481, 9 pagesdoi:10.1155/2007/70481 Research Article Collaborative Image Coding and Transmission over Wireless Sensor NetworksMin Wu1and...
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Báo cáo hóa học: " Research Article Constellation Design for Widely Linear Transceivers" doc
... nondispersive channel considered in [2] and, therefore,optimizing the circularity degree of the constellation doesnot provide any performance advantage. On the other hand,when a time-dispersive channel ... the performance of the WL receiver are availablein [11] for a QAM constellation and in [3]foraPAMcon-stellation in the presence of a PAM cochannel interference.Moreover, such performance analysis ... SNR= 18 dB and Nf= 15. Theoptimum strategy provides performance gain over the non- adaptive transceiver employing the conventional rectangular8-QAM by using the “1-7” 8-QAM and the noncircular...
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Báo cáo hóa học: " Research Article Code Design for Multihop Wireless Relay Networks" pptx
... part by NSF Grant CCR-0133818, by The Lee Center for Advanced Networking atCaltech, and by a grant from the David and Lucille PackardFoundation.REFERENCES[1] J. N. Laneman and G. W. Wornell, ... cooperative channels, ” IEEE Transactions on Information Theory, vol. 51,no. 12, pp. 4152–4172, 2005.[3] P. Elia, K. Vinodh, M. Anand, and P. V. Kumar, “D-MG trade-off and optimal codes for a class ... Oggier and B. Hassibi, “A coding scheme for wireless net-works with multiple antenna nodes and no channel informa-tion,” in Proceedings of the IEEE International Conference onAcoustics, Speech and...
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báo cáo hóa học:" Research Article Iterative Methods for Variational Inequalities over the Intersection of the Fixed Points Set of a Nonexpansive Semigroup in Banach Spaces" pot
... Ceng, Q. H. Ansari, and J C. Yao, “Mann-type steepest-descent and modified hybrid steepest-descent methods for variational inequalities in Banach spaces,” Numerical Functional Analysis and Optimization, ... Fixed Points Set ofa Nonexpansive Semigroup in Banach SpacesIssa MohamadiDepartment of Mathematics, Islamic Azad University, Sanandaj Branch, Sanandaj 418, Kurdistan, IranCorrespondence should ... Theory and Applications for a constant κ>0. Existence and uniqueness of solutions are important problems of theVIF, C. It is known that if F is a strongly monotone and Lipschitzian mapping...
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Báo cáo hóa học: " Research Article Spectrum Allocation for Decentralized Transmission Strategies: Properties of Nash Equilibria" pot
... 8:Acomparisonofsystemperformanceintermsofsumrate for the decentralized gameG and the IWFA when gxygyx> 1 and 4 players are served. The scale factor β is varied between 1 and 5for = 1, 2, and 4.Figures ... MacKenzie and L. DaSilva, Game Theory for Wireless Engineers, Morgan & Claypool, San Rafael, Calif, USA, 2006.[2] R. Etkin, A. Parekh, and D. Tse, “Spectrum sharing for unlicensed bands,” IEEE ... is averaged over 50000 channel and power realizations, and two specific scenarios are considered:g1g2< 1andg1g2> 1. To simplify the exercise, we let g1 and g2be uniformly distributed...
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Báo cáo hóa học: " Research Article A Method for Source-Microphone Range Estimation in Reverberant Environments Using Arrays of Unknown Geometry" ppt
... of our range estimates and present the results of experiments using simulated and real data to demonstrate the efficacyof our approach.Copyright © 2008 D. McCarthy and F. Boland. This is an open ... unknownvariances and means of G0,1 and G0,2,respectively.Suchara-tio is itself a Cauchy distributed random variable.4.2. Cauchy distributionIn [11] it is shown that, following a translation and ... soundwave and mul-tiplying it by some known propagation speed. In [1] this isachieved by simultaneous transmission of a soundwave and a “time-stamped” radio signal. Provided that the transmit-ter and...
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Báo cáo hóa học: " Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks" docx
... source coding and channel coding subject to the constraints on ef-fective transmission rate, allowable end-to-end delay, and prevailing channel conditions. Therefore, improved perfor-mance can ... propagationdelays over intermediate links, and queuing delays in inter-mediate nodes; Rs and Rcdenote the source coding rate and channel coding rate, respectively.The overall end-to-end performance will ... chan-nel packet-loss process and analyze the delay introduced byFEC coding. Then, based on this analysis, we introduce theproposed cross-layer JSCC approach for video transmission over wireless...
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Báo cáo hóa học: " Fine-Grained Rate Shaping for Video Streaming over Wireless Networks" pot
... J. Cai, and C. W. Chen, “Joint source channel rate-distortion analysis for adaptive mode selection and rate con-trol in wireless video coding, ” IEEE Trans. Circuits and Systems for Video Technology, ... a te and fluctuating bandwidth. The packet lossrate and bandw idth vary at each time interval. We simulaterandom bandwidth fluctuation according to an autoregres-sive (AR) process [28] and use ... Ortega, and J. I. Ronda, “Stochastic rate-controlof video coders for wireless channels, ” IEEE Trans. Circuits and Systems for Video Technology, vol. 12, no. 6, pp. 496–510,2002.FGRS for Video...
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Báo cáo hóa học: " Research Article Improved Design of Unequal Error Protection LDPC Codes" pot
... 2048 and dv max= 20. The PEG-ACE = 0.3dBcode performs slightly better than the code designed by Ma and Kwak for both classes. The PEG-ACE = 0.5dB code performsmuch better than the Ma and ... =10000 and dv max= 11.4 EURASIP Journal on Wireless Communications and NetworkingTable 1: Variable node degree distributions for two PEG-ACE codes ( = 0.3dBand = 0.5 dB) and the random ... C1PEG-ACE = 0.5 dB, C2Ma and Kwak, C1Ma and Kwak, C21 1.2 1.4 1.6 1.8 2Figure 5: BER performance of the PEG-ACE = 0.5dBcode and the code designed by Ma and Kwak [6] after 10 decoder...
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báo cáo hóa học:" Research Article Augmented Reality for Art, Design and Cultural Heritage—System Design and Evaluation" doc
... pagesdoi:10.1155/2009/716160 Research Article Augmented Reality for Art, Design and CulturalHeritage—System Design and EvaluationJurjen Caarls,1Pieter Jonker,1, 2Yolande Kolstee,3Joachim Rotteveel,2 and Wim van ... system performsalso in qualitative sense, we tested it with artists and designersin various art, design, and cultural heritage projects. Theapplication of artists and designers and curators ... fruitful and has led to many amazing productions and exhibitions.AcknowledgmentsThis work was made possible by the SIA-RAAK projectsVisualization Techniques for Art and Design (2006-2007) and Interactive...
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