báo cáo hóa học: " Adaptive low-rank channel estimation for

Báo cáo hóa học: " Research Article Channel Estimation for Two-Way Relay OFDM Networks" pot

... to develop their corresponding channel estimation algorithms for OFDM modulated TWRN in [22]. In this work, we consider the channel estimation for two- way relay OFDM networks. Due to the nature ... (LMSNR) channel estimation for two-way AF relay networks over the ﬂat fading channels in [21], and pointed out that there exist many challenges since the channel estimatio...

Ngày tải lên : 21/06/2014, 17:20

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Báo cáo hóa học: " Robust time delay estimation for speech signals using information theory: A comparison study" pot

... Access Robust time delay estimation for speech signals using information theory: A comparison study Fei Wen * and Qun Wan Abstract Time delay estimation (TDE) is a fundamental subsystem for a speaker localization ... the two measures are presented for both Gaussian and Laplacian models. We show that, for stationary signals, the two measures are equivalent for TDE. However, for...

Ngày tải lên : 21/06/2014, 01:20

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Báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" pptx

... Access Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications Chia-Chang Hu * and Shih-Chang Lee Abstract In this paper, an adaptive channel estimation scheme ... (BER) performance similar to that of the full-rank WF channel estimator and superior than those of other interpolation-based channel estimation schemes. Keywords: channel...

Ngày tải lên : 20/06/2014, 22:20

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báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" docx

... Open Access Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications Chia-Chang Hu * and Shih-Chang Lee Abstract In this paper, an adaptive channel estimation scheme ... (BER) performance similar to that of the full-rank WF channel estimator and superior than those of other interpolation-based channel estimation schemes. Keywords: chan...

Ngày tải lên : 21/06/2014, 00:20

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Báo cáo hóa học: " Evaluation of normalization methods for two-channel microRNA microarrays" ppt

... analyses. If both channels produced intensities less than 100 for a given microRNA, that spot was also filtered out. For spots with one channel i ntensity less than 100 but the other channel intensity ... al [10] compared normalization methods for single channel miR microarray data. They reported that quantile normalization was the best performing method for reducing the diffe...

Ngày tải lên : 18/06/2014, 16:20

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Báo cáo hóa học: "Adaptive robot training for the treatment of incoordination in Multiple Sclerosis" doc

... ataxia progressively impairs force adaptation during goal-directed arm movements. J Neurophysiol 2004, 91:230-238. 28. Patton JL, Mussa-Ivaldi FA: Robot-assisted adaptive training: custom force fields for teaching ... lateral deviation) in movements where force is turned on (force trials) and where force is turned off (catch trials). If adaptation had occurred, the execution error observe...

Ngày tải lên : 19/06/2014, 08:20

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Báo cáo hóa học: " Comparison of regression models for estimation of isometric wrist joint torques using surface electromyography" potx

... 9.40 18.63 Table 4 Comparison of joint torque estimation for models trained with two, five, and eight SEMG channels. Model 8 channels 5 channels 2 channels NRMSE R 2 a NRMSE R 2 a NRMSE R 2 a PBM ... NRMSE and R 2 a for the two cases. For PBM training with two and five channels, ΣPCSA term in equation 7 was modified. For the two channel case, equation 7 took the following form: τ...

Ngày tải lên : 19/06/2014, 08:20

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báo cáo hóa học:" Adaptive example-based super-resolution using Kernel PCA with a novel classification approach" doc

... (a) (b) (c) (d) (e) (f) (g) Figure 13 4.2 Adaptive estimation of missing high-frequency components In this subsection, we present an adaptive estimation of missing high-frequency components ... pre-image approximation as [Approximation 1] for the following explanation. Generally, if we perform the pre-image estimation of ˜ l k j from ζ k j , estimation errors occur. In the propo...

Ngày tải lên : 20/06/2014, 04:20

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Báo cáo hóa học: " Adaptive collision resolution for efficient RFID tag identification" doc

... communication overhead, k-TAS obviously outperforms other methods and is thus more practical for real world application. 5.3. Impact of bit-length of tag ID This section describes the performance improvement of k-TAS ... and is suitable for any RFID application environment is another interesting research topic for us. Acknowledgements The authors gratefully acknowledge the support from...

Ngày tải lên : 20/06/2014, 22:20

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Báo cáo hóa học: " Adaptive cognitive media delivery over composite wireless networks" pdf

... tra nsient effects. Therefore, channel selection policies that use both proactive and reactive selection for channels are desirable. Exploiting channel knowledge for adaptive stre aming delivery ... performance on the current channel (assuming similar average performance). Therefore, it may not refle ct the actual performance that will be obtained. For instance, if the state of...

Ngày tải lên : 20/06/2014, 22:20

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