Báo cáo hóa học: " Research Article Robust Adaptive OFDM with Diversity for Time-Varying Channels" pot

... Communications and Networking Volume 2007, Article ID 78156, 8 pages doi:10.1155/2007/78156 Research Article Robust Adaptive OFDM with Diversity for Time-Varying Channels Erdem Bala and Leonard ... precoder for MIMO channels with imperfect CSI is de- signed in [25]. This approach is also used in [ 26, 27]todesign robust adaptive beamformers, and in [28]todesignarob...

Ngày tải lên: 22/06/2014, 19:20

... Advances in Signal Processing Volume 2007, Article ID 38341, 10 pages doi:10.1155/2007/38341 Research Article Robust Adaptive Modified Newton Algorithm for Generalized Eigendecomposition and Its ... commu- nication, adaptive theory, and application, and statistical theory. His current research interests include particle filter application in communication, OFDM, and MIMO. Jian...

Ngày tải lên: 22/06/2014, 20:20

... noise performance, code versus carrier performance, a priori information needed as an input, short-delay perfor- mance and hardware/software complexity. With regard to the noise mitigation performance, ... PERFORMANCE ANALYSIS AND SIMULATION RESULTS In this section, computer simulations are conducted to assess the performance of the proposed method. To make an easy comparison in performance...

Ngày tải lên: 21/06/2014, 22:20

... Signal Processing Volume 2007, Article ID 82931, 14 pages doi:10.1155/2007/82931 Research Article Robust Background Subtraction with Shadow and Highlight Removal for Indoor Surveillance Jwu-Sheng ... proposed scheme is robust to global illumination changes. 4.3. Experiments for foreground detection In the third experiment (Figure 9), a person goes into the monitoring area, and...

Ngày tải lên: 22/06/2014, 23:20

... performance of an HMM with 10 Gaussians per state when the number of emitting states per phoneme is varied, with rather dramatic effects. (b) displays the word error rate performance of an HMM with ... lower. 5.2. Experiments with Boosting and Bagging Phoneme-Level Models. The experiments described in this section were performed with a fixed number of states for all phonemes, as wel...

Ngày tải lên: 21/06/2014, 05:20

... whereas in the latter case there is a parallel usage of more than one RAT for the same data flow (with or without data duplication for the transmissions over the different RATs). The aim of this paper ... different in terms, for instance, of medium access strategies and transmission rates. It is straightforward to understand that, in this case, the random distribution of packets with un...

Ngày tải lên: 21/06/2014, 22:20

... Gaussian filter for image smoothing before performing edge detection. The objective is to qualitatively explore how well BEMD is able to smooth an image for more effective edge detection with the Sobel method. Copyright ... was then used as (a) With Canny: PCC surface (b) With BEMD/Sobel: PCC surface Figure 6 (a) With Canny: PCC surface (b) With BEMD/Sobel: PCC surface Figure 7 th...

Ngày tải lên: 21/06/2014, 22:20

... 10 −3 for WSFC and V- BLAST with ordering based on MIMO -OFDM with different group sizes G for ABL. R = 2bits, and d = 16 for WSFC. The center subcarrier and equivalent SNR methods are used for loading. the ... performance for coded MIMO -OFDM with and without ABL. R = 2 bits, and d = 16 for WSFC. 5.2. Performance comparisons We now compare the performances of coded MIMO-...

Ngày tải lên: 21/06/2014, 23:20

... generated by performing sampling uniformly along the x-axis. The radius of the proposed adaptive curvature estimator ranges from 0.1to 4 with the step size of 0.1. Figure 3 shows the adaptively varying ... integrals with adaptive radius. Notice that a dashed blue line denotes the true curvature. 5. Experiments and Results We conduct several experiments to evaluate the performance of t...

Ngày tải lên: 21/06/2014, 08:20

... and method for adaptively interpolating a full color image utilizing chromi- nance gradients,” US patent no. 5 373 322, December 1994. [17] R. H. Hibbard, “Apparatus and method for adaptively ... experiments were performed on a PC equipped with an Intel Core2 Duo E8400 CPU. In the table, the processing time is increased depending on the estimation criterion: for example, preinter- pol...

Ngày tải lên: 21/06/2014, 08:20