báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" docx
Báo cáo hóa học: " Research Article Channel Estimation for Two-Way Relay OFDM Networks" pot
... to develop theircorresponding 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 theflat fading channels in [21], and pointed out that there existmany challenges since the channel estimation is requirednot only for ... trainingsequences. We compare both MSE performance as well assymbol error rate (SER) performance for two-way relay OFDM networks.Figure 1 shows the MSE performance betweenθ andθ for different training sequences....
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Báo cáo hóa học: " Robust time delay estimation for speech signals using information theory: A comparison study" pot
... AccessRobust time delay estimation for speech signalsusing information theory: A comparison studyFei Wen*and Qun WanAbstractTime delay estimation (TDE) is a fundamental subsystem for a speaker localization ... the twomeasures are presented for both Gaussian and Laplacian models. We show that, for stationary signals, the twomeasures are equivalent for TDE. However, for non-stationary signals (e.g., ... statistics (SOS) under Gaussian assumption for the source. Thisarticle resolves the TDE problem using two information-theoretic measures, joint entropy and mutual informa tion(MI), which can be considered...
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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 multi-band OFDM ultra-wideband communicationsChia-Chang Hu*and Shih-Chang LeeAbstractIn this paper, an adaptive channel estimation scheme ... (BER) performance similar to that of thefull-rank WF channel estimator and superior than those of other interpolation-based channel estimation schemes.Keywords: channel estimation, MB -OFDM, ultra-wideband ... al, MultiBand OFDM Physical Layer Proposal for IEEE802.15.3a. MultiBand OFDM Alliance SIG (2004)4. A Batra, J Balakrishnan, GR Aiello, JR Foerster, A Dabak, Design of a multiband OFDM system for...
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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 multi-band OFDM ultra-wideband communicationsChia-Chang Hu*and Shih-Chang LeeAbstractIn this paper, an adaptive channel estimation scheme ... (BER) performance similar to that of thefull-rank WF channel estimator and superior than those of other interpolation-based channel estimation schemes.Keywords: channel estimation, MB -OFDM, ultra-wideband ... al, MultiBand OFDM Physical Layer Proposal for IEEE802.15.3a. MultiBand OFDM Alliance SIG (2004)4. A Batra, J Balakrishnan, GR Aiello, JR Foerster, A Dabak, Design of a multiband OFDM system for...
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Báo cáo hóa học: " Evaluation of normalization methods for two-channel microRNA microarrays" ppt
... analyses. Ifboth channels produced intensities less than 100 for agiven microRNA, that spot was also filtered out. For spots with one channel i ntensity less than 100 but theother channel intensity ... al [10]compared normalization methods for single channel miR microarray data. They reported that quantile nor-malization was the best performing method for reducingthe differences in micro ... method for their set of invariant miRsusing the Agilent single channel platform. In contrast,Hua et al. [12], using Rt-PCR as a gold standard, foundthat the lowess method gave the best result for...
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Báo cáo hóa học: "Adaptive robot training for the treatment of incoordination in Multiple Sclerosis" doc
... ataxiaprogressively impairs force adaptation during goal-directed armmovements. J Neurophysiol 2004, 91:230-238.28. Patton JL, Mussa-Ivaldi FA: Robot-assisted adaptive training: custom forcefields for teaching ... lateraldeviation) in movements where force is turned on (forcetrials) and where force is turned off (catch trials). Ifadaptation had occurred, the execution error observedin early force trials should be ... in the late cat ch trials. For each subject we displayed the error in ear ly forcetrials versus the error in late catch trials. The results, for each subject and for each training mode, are...
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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 18.63Table 4 Comparison of joint torque estimation for models trained with two, five, and eight SEMG channels.Model 8 channels 5 channels 2 channelsNRMSER2aNRMSER2aNRMSER2aPBM ... NRMSE andR2a for the two cases. For PBM training with two and five channels, ΣPCSAterm in equation 7 was modified. For the two channel case, equation 7 took the following form:τe(t) =PCSAf1exorsPCSAf1exor× ... networksforestimationofthumb-tipforcesunderfourdifferentconfigurations. In another study, performance of a Hill-based physiological muscle model was compared to aneural network for estimation of forearm flexion...
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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 134.2 Adaptive estimation of missing high-frequency componentsIn this subsection, we present an adaptive estimation of missing high-frequencycomponents ... pre-imageapproximation as [Approximation 1] for the following explanation. Generally, if we performthe pre-image estimation of˜lkjfrom ζkj, estimation errors occur. In the proposed method,we ... which utilizes KPCA for performing thesuper-resolution, and its improvement is achieved by utilizing the classification schemein [8]. Therefore, these two methods are suitable for the comparison...
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Báo cáo hóa học: " Adaptive collision resolution for efficient RFID tag identification" doc
... communicationoverhead, k-TAS obviously outperforms other methodsand is thus more practical for real world application.5.3. Impact of bit-length of tag IDThis section describes the performance improvement ofk-TAS ... andis suitable for any RFID application environment isanother interesting research topic for us.AcknowledgementsThe authors gratefully acknowledge the support from the TaiwanInformation Security ... onApplications and the Internet Workshops,92–97 (2006)6. Information Technology-Radio Frequency Identification for Item Management-Part 6: Parameters for Air Interface Communications at 860 MHz to 960...
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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 andreactive selection for channels are desirable. Exploiting channel knowledge for adaptive stre aming delivery ... performance on the current channel (assumingsimilar average performance). Therefore, it may notrefle ct the actual performance that will be obtained. For instance, if the state of channel i changes ... incorrect estimation for reactivetriggering of alternative channel selection. Consequently,it is anticipated that this type reactive trigger is better for reacting to the rapidly degrading current channel, and...
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