Báo cáo hóa học: " Research Article Optimization of Linear Precoded OFDM for High-Data-Rate UWB Systems" pptx

... evolution of the multiband OFDM (MB -OFDM) solution supported by WiMedia-MBOA (MultiBand OFDM Alliance). The aim of this paper is twofold. Firstly, an analytical study of the LP -OFDM waveform allows ... the use of a linear precoded orthogonal frequency division multiplexing (LP -OFDM) waveform for high-data-rate ultra-wideband (UWB) systems. This waveform applied for t...

Ngày tải lên: 22/06/2014, 06:20

... evolution of the multiband OFDM (MB -OFDM) solution supported by WiMedia-MBOA (MultiBand OFDM Alliance). The aim of this paper is twofold. Firstly, an analytical study of the LP -OFDM waveform allows ... the use of a linear precoded orthogonal frequency division multiplexing (LP -OFDM) waveform for high-data-rate ultra-wideband (UWB) systems. This waveform applied for t...

Ngày tải lên: 22/06/2014, 19:20

... signal model for IFDMA is described in detail in [11]. The model for joint-DFT B-IFDMA is derived as a particular case of general precoded OFDMA system. Although new algorithms for a lower complexity implementation ... been proposed as a candidate for nonfrequency-adaptive transmission mode. B-IFDMA is a particular case of discrete Fourier transform (DFT) precoded OFDMA, where...

Ngày tải lên: 21/06/2014, 23:20

... technique for LP of audio signals, see [12]and references therein. In WLP, the input signal undergoes a nonuniform frequency transformation before a conventional LP is performed, with the aim of enhancing ... containing a finite num- ber of dominant frequency components. In this way, the majority of audio signals is covered, except for the class of percussive sounds. The performa...

Ngày tải lên: 22/06/2014, 00:20

... 2010, Article ID 942638, 12 pages doi:10.1155/2010/942638 Research Article Optimization of Hierarchical Modulation for Use of Scalable Media Yongheng Liu 1 and Conor Heneghan 2 1 Department of Electronic ... E b /N 0 for various values of k. It illustrates along with the increment of k, the BER curve for HP bits moves backward while the BER curve for LP bits moves fo...

Ngày tải lên: 21/06/2014, 18:20

... Processing Volume 2009, Article ID 174192, 13 pages doi:10.1155/2009/174192 Research Article Optimization of an Image-Based Talking Head System Kang Liu and Joern Ostermann Institut f ¨ ur Informationsverarbeitung, ... audio-visual analysis of recorded human subjects results in a database of mouth images and their relevant features suitable for synthesis. The audio and video...

Ngày tải lên: 21/06/2014, 20:20

... on Advances in Signal Processing Volume 2009, Article ID 309212, 12 pages doi:10.1155/2009/309212 Research Article Optimization of Sensing Receiver for Cognitive Radio Applications Hassan Zamat 1 and ... affected by the increase of the number of users. As the number of users increases, the occupancy of the spectrum increases and hence the number of idle channels suitable...

Ngày tải lên: 21/06/2014, 20:20

... sensor location for parameter identification of linear structural sys- tems discusses the influence of noise on these. In [11] the effect of noise on sensor placement for on-orbital identifi- cation of large ... in Signal Processing Volume 2008, Article ID 280346, 9 pages doi:10.1155/2008/280346 Research Article Optimization of Sensor Locations and Sensitivity Analysis fo...

Ngày tải lên: 22/06/2014, 19:20

... terms of dimension reduction, but also of accuracy performance. It must be quoted that the former approach of selection is more commonly used because of the convenient physical interpretation of ... carrying fundamental information for the OSA classification, as quoted in [16]. Though, performed outcomes look very promising in terms of accuracy of features extraction, testing...

Ngày tải lên: 21/06/2014, 05:20

... author is indebted to the anonymous referee for many valuable comments, for a correction of one part of the proof, and for his improving of the organization of the paper. This work was supported by ... Publishing Corporation Journal of Inequalities and Applications Volume 2010, Article ID 902432, 5 pages doi:10.1155/2010/902432 Research Article Proof of One Optimal Ine...

Ngày tải lên: 21/06/2014, 07:20