Báo cáo hóa học: " Research Article Robust OFDM Timing Synchronisation in Multipath Channels" doc

... and Networking Volume 2008, Article ID 675048, 12 pages doi:10.1155/2008/675048 Research Article Robust OFDM Timing Synchronisation in Multipath Channels C. Williams, 1, 2 S. McLaughlin, 3 and ... intervals. However, since both methods produce synchronisation estimates using a correlation process, the same form of estimator can be used in both cases. For timing estimat...

Ngày tải lên: 21/06/2014, 23:20

... sources in s, that is, x k = A k s. (26) This assumption remains valid in R-DANSE K . Indeed, since x q contains M q linear combination of the Q sources in s, the signal x i k (p)givenby(24) is again ... using external acoustic sensor nodes is given. In Section 4, the DANSE algorithm is reviewed in the context of noise reduction. A mod- ification to DANSE increasing robustness is int...

Ngày tải lên: 21/06/2014, 20:20

... scaling, Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2008, Article ID 519206, 9 pages doi:10.1155/2008/519206 Research Article Robust Speech Watermarking ... Time-varying filtering Time-varying filtering is used in order to obtain watermark with specific time-frequency properties as well as to provide the inverse transform from the time-freq...

Ngày tải lên: 21/06/2014, 22:20

... Coarse Timing Synchronisation. Downlink timing syn- chronisation should be performed during the Downlink Synch slot of the WINNER MAC superframe [2]. The first OFDM symbol of the Downlink Synch ... can be applied for fine timing synchronisation and integer frequency offset estimation algorithms as well. A new timing metric that improves the performance of the coarse timing synchr...

Ngày tải lên: 21/06/2014, 22:20

... one of its outgoing links and one of its incoming links will be included in the subgraph. Otherwise, none of its links will be included in the subgraph. In both cases, constraint (32) is satisfied. ... physical layer to the link. This effect will in turn cause interference to other links, resulting in a decrease in the capacity of other links. In this case, by decreasing Lagrange...

Ngày tải lên: 21/06/2014, 23:20

... t>0. Proof. Putting y  x in 3.20,weobtain μ f3x−6f 2x15fx  t  ≥ ρ x,x  t  3.23 Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2009, Article ID 868423, ... mappings,” Information Sciences, vol. 178, no. 19, pp. 3791–3798, 2008. 27 S. S. Chang, Y. J. Cho, and S. M. Kang, Nonlinear Operator Theory in Probabilistic Metric Spaces, Nova Sci...

Ngày tải lên: 22/06/2014, 02:20

... weaker than that in the corresponding results of Shen in 14. Theorem 3.6 also generalizes in 4, Theorem 2.4,Dingin15, Theorem 5.3, and Ding and Yuan in 16, Theorem 2.3 in several aspects. Corollary ... a generalized G B -mapping resp., G B -majorant mapping. The inverse is not true in general. 3. Maximal Elements In order to obtain our main results, we need the followi...

Ngày tải lên: 22/06/2014, 02:20

... enhancing collaborative learn- ing using pervasive computing technology,” in Proceedings of the 6th WFEO World Congress on Engineering Education and the 2nd ASEE International Colloquium on Eng ineering ... distributed algorithm for managing multi-target identities in wireless ad-hoc sensor networks,” in Proceedings of the 2nd International Workshop on Information Processing in Sensor...

Ngày tải lên: 22/06/2014, 22:20

... 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 J. Cimini, Jr. Department ... de- signed in [25]. This approach is also used in [ 26, 27]todesign robust adaptive beamformers, and in [28]todesignarobust minimum variance beamformer. In this paper...

Ngày tải lên: 22/06/2014, 19:20

... ω 2 ) = 1  √ 2πσ  M/2 e −(1/2σ 2 )x 2 −a 2 s 2  2 . (A.2) Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2010, Article ID 172703, 13 pages doi:10.1155/2010/172703 Research Article Robust Blind Frequency ... be estimated by fixing the values of the other parameters in each iteration. Notably, the value given by (20) obtained by utilizing t...

Ngày tải lên: 21/06/2014, 08:20