Báo cáo hóa học: " Research Article Ultra-Wideband Channel Modeling for Intravehicle Environment" docx

... We can observe that these parameters are relatively constant for channel 6 and change every 20 seconds for channel 11. We also performed statistical analysis to find any patterns in the busy periods. ... correlation and capitalize on it for channel selection. 2.2. Channel access model In this section, we describe how SA nodes access the channel, and how they collect information...

Ngày tải lên: 21/06/2014, 22:20

... Processing Volume 2010, Article ID 640186, 13 pages doi:10.1155/2010/640186 Research Article Joint Linear Processing for an Amplify-and-Forward MIMO Relay Channel with Imperfect Channel State Informati on Batu ... impractical if the design is based on instantaneous channels [23]. Therefore, robust designs based on channel covariance information [20] can be appropriate for such...

Ngày tải lên: 21/06/2014, 08:20

... association with a one-step channel predictor has the most accurate prediction of the current channel for current data detection when the channel is fast fading. Therefore, the SER of the proposed method ... better performance than the other methods for MC-CDMA systems under the rapidly fading channel EURASIP Journal on Advances in Signal Processing 5 Formulation of a maximum-like...

Ngày tải lên: 21/06/2014, 08:20

... Wireless Communications and Networking Volume 2010, Article ID 708416, 13 pages doi:10.1155/2010/708416 Research Article Joint Channel- Network Coding for the Gaussian Two-Way Two-Relay Network Ping ... transmission strategies, namely, amplify-forward (AF), hybrid decode amplify forward (HLC), hybrid decode amplify forward (HMC), decode forward (DF), and partial decode forward (PDF),...

Ngày tải lên: 21/06/2014, 17:20

... performs well for values of N ≥ 1000 and is comparable to the Wiener equalizer for N = 2000. For performance comparison with the constant modulus algorithm, we use the BERGulator software for ... interference (ISI) formula defined in terms of the global channel- equalizer taps as ISI = (  i |g i | 2 ) −|g| 2 max |g| 2 max ,(3) where |g| max stands for the maximum joint channel- e...

Ngày tải lên: 21/06/2014, 22:20

... instance m 0 and m, for example, it is assumed that P z (m) ≈ P z (m 0 ) for the FEXT case, and P w (m) ≈ P w (m 0 ) for the NEXT case. As before, we use the same notation for estimation sequence ... vector for subchannel k and Z k = [ Z k 1 Z k 2 ··· Z k U ] T is the (complex) noise vector for subchannel k. In the same way, we model the received NEXT signal as V k = G k X k + W k...

Ngày tải lên: 21/06/2014, 22:20

... equalizer achieves a performance close to the trained MMSE equalizer for channels with white inputs at high SNR. The introduced Tsatsanis and Xu’s (TX’s) CMOV algorithm obtains the channel information from ... based on our proposed new constraints, an adaptive blind channel equalization method for a linear channel with colored input can be straightforwardly developed using the same...

Ngày tải lên: 21/06/2014, 22:20

... Corporation EURASIP Journal on Advances in Signal Processing Volume 2009, Article ID 918404, 9 pages doi:10.1155/2009/918404 Research Article Single -Channel Talker Localization Based on Discrimination of Acoustic ... estimation. Figure 7 shows the results for a different number of training data, where the number of Gaussian mixture components for the acoustic transfer function is 1...

Ngày tải lên: 21/06/2014, 22:20

... improvement was considered for the original EVESPA. As expected, the performance of the proposed procedure is at its worse for low values of M and G where it is slightly outperformed by the original ... column. Therefore, the columns of E −† H = QZ match those of Q to within scale and permutation and a straightforward estimation of B becomes  B = E s  Q = E s E −† H . (15) 4. Performanc...

Ngày tải lên: 21/06/2014, 05:20

... Corporation Journal of Inequalities and Applications Volume 2011, Article ID 434175, 7 pages doi:10.1155/2011/434175 Research Article Strong Converse Inequality for a Spherical Operator Shaobo Lin and Feilong ... p<∞. 1.3 In the following, L p  d−1  will always be one of the spaces L p  d−1  for 1 ≤ p<∞,orC d−1  for p  ∞. For an arbitrary number θ,0<θ<π, we...

Ngày tải lên: 21/06/2014, 05:20