Báo cáo hóa học: " Layered Video Transmission on Adaptive OFDM Wireless Systems" pot

Báo cáo hóa học: "Research Article Decentralized Turbo Báo cáo hóa học: "Bayesian Compressed Sensing with Application to UWB Systems" potx

Báo cáo hóa học: "Research Article Decentralized Turbo Báo cáo hóa học: "Bayesian Compressed Sensing with Application to UWB Systems" potx

... to impose an exponential distribution on the hyperparameter α i j and exchange information among different BCS signal reconstruction procedures using the exponential distribution in a turbo iterative ... aprioriinformation based on reconstructed signal elements. Compared with the Gamma prior distribution imposed on the hyperpar ameter λ i j [21, 25], the exponential distribu- tion has on...
Ngày tải lên : 21/06/2014, 05:20
17 295 0
báo cáo hóa học:" Multiple access communications in future-generation wireless networks" potx

báo cáo hóa học:" Multiple access communications in future-generation wireless networks" potx

... for implementation of proportional differentiated admission control. The article “Polarization Division Multiple Access With Polarization Modulation for LOS Wireless Communications” by Bin Cao, ... to http://jwcn.eurasipjournals.com/authors/instructions/ For information about other SpringerOpen publications go to http://www.springeropen.com EURASIP Journal on Wireless Communications...
Ngày tải lên : 21/06/2014, 17:20
17 306 0
Báo cáo hóa học: "Editorial Advances in Propagation Modeling for Wireless Systems" pptx

Báo cáo hóa học: "Editorial Advances in Propagation Modeling for Wireless Systems" pptx

... mobile station in small urban macrocell at 4.5 GHz. Each identified cluster is manually confronted with its physical counterpar t, and conclusive results are drawn on the various propagation mechanisms. The ... that the precision of ray-tracing tools is limited by the accuracy of the environmental description. The proposed approach improves the prediction accuracy by means of a calibration p...
Ngày tải lên : 21/06/2014, 23:20
2 295 0
Báo cáo hóa học: " Editorial Smart Antennas for Next Generation Wireless Systems" docx

Báo cáo hóa học: " Editorial Smart Antennas for Next Generation Wireless Systems" docx

... model, and show the potential gains with respect to the conventional half wavelength systems. For such purposes two optimisation criteria are considered: one based on the minimization of the average ... operation across multitech- nology wireless networks. Although a considerable amount of research effort has been dedicated to the investigation of MIMO systems performance, results, conclus...
Ngày tải lên : 22/06/2014, 00:20
2 307 0
Báo cáo hóa học: " Energy-Efficient Channel Estimation in MIMO Systems" pot

Báo cáo hóa học: " Energy-Efficient Channel Estimation in MIMO Systems" pot

... Journal on Wireless Communications and Networking Table 1: Computational cost of channel estimation. Operation Complex × Complex + Divisions X ×X H M(M +1)J/2 M(M +1)(J − 1)/2— Cholesky decomposition ... on Wireless Communications and Networking 5. MINIMIZING ENERGY AT THE RECEIVER In contrast to the transmitter, the energy consumption at the receiver is due to data acquisition and co...
Ngày tải lên : 22/06/2014, 22:20
11 275 0
báo cáo hóa học: " A pilot study on pupillary and cardiovascular changes induced by stereoscopic video movies" pptx

báo cáo hóa học: " A pilot study on pupillary and cardiovascular changes induced by stereoscopic video movies" pptx

... discussed. Conclusion: The autonomic responses were effective to monitor biomedical effects induced by image presentation. Further accumulation of data on multiple autonomic functions would contribute ... latency of the constric- tion, the velocity of constriction (vc), the velocity of re- dilation (vd), the acceleration of constriction (ac), and the time at the peak of constriction (peak t...
Ngày tải lên : 19/06/2014, 10:20
7 395 0
Báo cáo hóa học: " Review Article Overview on Selective Encryption of Image and Video: Challenges and Perspectives doc

Báo cáo hóa học: " Review Article Overview on Selective Encryption of Image and Video: Challenges and Perspectives doc

... semantically good reconstruction [11]. Two conclusions can be made. First, energy concentration is not systematically a good criterion for selective encryption. Second, high-visual distortion does not mean ... link to Shannon’s work on information theory in Section 1.2. Evaluation criteria of selective encryption algorithms are presented in Section 1.2. In Section 1.3, we give one classifica...
Ngày tải lên : 22/06/2014, 00:20
18 421 0
Báo cáo hóa học: "Editorial Video Analysis and Coding for Robust Transmission" pot

Báo cáo hóa học: "Editorial Video Analysis and Coding for Robust Transmission" pot

... coding and transmission frame- works such as those mentioned earlier yields content-aware error resilient solutions and improves prioritization of the visual content for coding and transmission. This ... mul- tiple description mode, dep ending on the network condi- tions and video features. The proposed method is an H.264- compatible video streaming solution over bursty channels and...
Ngày tải lên : 22/06/2014, 23:20
3 259 0
báo cáo hóa học: " Effect of exacerbations on health status in subjects with chronic obstructive pulmonary disease" doc

báo cáo hóa học: " Effect of exacerbations on health status in subjects with chronic obstructive pulmonary disease" doc

... limitation to our study is that unreported exacer- bations were not included [11,12,33]. Conclusion In conclusion, we demonstrated that acute exacerbations require the use of additional medication, ... suggest that acute COPD exacerbations have a more potent influence on the long-term deterioration in health status than on pulmo- nary function. Although the FEV 1 only weakly correlates t...
Ngày tải lên : 18/06/2014, 19:20
8 594 0
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