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

... processing, wireless image /video transmission, and wireless sensor network. He is a member of Sigma Xi and IEEE, and was named one of the three finalists for 2003 Association for the Advancement ... that the energy for image transmission can indeed be greatly reduced with collaborative image coding and transmission. Copyright © 2007 M. Wu and C. W. Chen. This is a...

Ngày tải lên: 22/06/2014, 23:20

... nondispersive channel considered in [2] and, therefore, optimizing the circularity degree of the constellation does not provide any performance advantage. On the other hand, when a time-dispersive channel ... the performance of the WL receiver are available in [11] for a QAM constellation and in [3]foraPAMcon- stellation in the presence of a PAM cochannel interference. Moreover, such per...

Ngày tải lên: 21/06/2014, 08:20

... part by NSF Grant CCR- 0133818, by The Lee Center for Advanced Networking at Caltech, and by a grant from the David and Lucille Packard Foundation. 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...

Ngày tải lên: 22/06/2014, 19:20

... 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 of a Nonexpansive Semigroup in Banach Spaces Issa Mohamadi Department of Mathematics, Islamic Azad University, Sanandaj Branch, Sanandaj 418, Kurdistan, Iran Corre...

Ngày tải lên: 21/06/2014, 11:20

... 8:Acomparisonofsystemperformanceintermsofsum rate for the decentralized game  G and the IWFA when g xy g yx > 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, “Spectr...

Ngày tải lên: 21/06/2014, 22:20

... of our range estimates and present the results of experiments using simulated and real data to demonstrate the efficacy of our approach. Copyright © 2008 D. McCarthy and F. Boland. This is an open ... unknown variances and means of G 0,1 and G 0,2 ,respectively.Suchara- tio is itself a Cauchy distributed random variable. 4.2. Cauchy distribution In [11] it is shown that, following...

Ngày tải lên: 22/06/2014, 19:20

... 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 ... propagation delays over intermediate links, and queuing delays in inter- mediate nodes; R s and R c denote the source coding rate and channel coding rate, respectively. The o...

Ngày tải lên: 23/06/2014, 00:20

... 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 loss rate and bandw idth vary at each time interval. We simulate random bandwidth fluctuation according to an autoregres- s...

Ngày tải lên: 23/06/2014, 01:20

... 2048 and d v max = 20. The PEG-ACE  = 0.3dB code performs slightly better than the code designed by Ma and Kwak for both classes. The PEG-ACE  = 0.5dB code performs much better than the Ma and ... = 10000 and d v max = 11. 4 EURASIP Journal on Wireless Communications and Networking Table 1: Variable node degree distributions for two PEG-ACE codes ( = 0.3dBand = 0.5 dB) an...

Ngày tải lên: 21/06/2014, 11:20

... pages doi:10.1155/2009/716160 Research Article Augmented Reality for Art, Design and Cultural Heritage—System Design and Evaluation Jurjen Caarls, 1 Pieter Jonker, 1, 2 Yolande Kolstee, 3 Joachim Rotteveel, 2 and Wim van ... system performs also in qualitative sense, we tested it with artists and designers in various art, design, and cultural heritage projects. The applic...

Ngày tải lên: 21/06/2014, 20:20