Báo cáo hóa học: " Research Article Constrained Optimization of MIMO Training Sequences" docx

... 2007, Article ID 80857, 13 pages doi:10.1155/2007/80857 Research Article Constrained Optimization of MIMO Training Sequences Justin P. Coon and Magnus Sandell Toshiba Telecommunications Research ... efficacy of IP methods in the context of sequence design: MIMO OFDM with nulled subcarriers and single-carrier MIMO with a UW extension. In both of these scenarios, a lea...

Ngày tải lên: 22/06/2014, 19:20

... result of MIMO training sequence design is that the PAPR of the training sequences cannot be decreased without compromising the MSE of the channel estimate. This trade-off can be observed for the MIMO ... pages doi:10.1155/2007/80857 Research Article Constrained Optimization of MIMO Training Sequences Justin P. Coon and Magnus Sandell Toshiba Telecommunications Res...

Ngày tải lên: 22/06/2014, 23:20

... 102030405060 SINR (dB) 3outof3 3outof6 3outof9 Figure 11: Cumulative distribution function of the received SINR with the different number of total relays on an urban environment with a cell radius of 500 m. the ... improved the channel gains of the different OFDM subcarriers which make the channel more robust as compared to the case with random delays. A performance improvement of the...

Ngày tải lên: 21/06/2014, 22:20

... on Wireless Communications and Networking Volume 2008, Article ID 573785, 14 pages doi:10.1155/2008/573785 Research Article Performance Optimization for Delay-Tolerant and Contention-Based Application ... while the number of bandwidth grants monotonously decreases with the increase of contention slots. This indicates that, in IEEE 802.16 networks, the unilateral increase of the...

Ngày tải lên: 21/06/2014, 23:20

... is that of nonlinear optimization of an abstrac ted model of the data exchanges on the superframe [23]. Nonlinear optimization theory pro- vides a number of means to optimize a number of variable parameters ... concentrating on the PCF. There has been a consid- erable amount of research into the support of QoS-sensitive traffic in more distributed aspects of IEEE802.11, bu...

Ngày tải lên: 22/06/2014, 19:20

... 2011, Article ID 237219, 14 pages doi:10.1155/2011/237219 Research Article Asymptotic Behavior of Solutions of Higher-Order Dynamic Equations on Time Scales Taixiang Sun, 1 Hongjian Xi, 2 and Xiaofeng ... G  u  T    t T p  τ  Δτ ≤ G  u  T   P. 2.53 The rest of the proof is similar to that of Theorem 2.8, and the details are omitted. The proof is completed. Theorem...

Ngày tải lên: 21/06/2014, 05:20

... holds. Acknowledgments The work was supported by the NSF of China, the Key Project of Chinese Ministry of Education, the NSF of Jiangxi Province of China, the Youth Foundation of Jiangxi Provincial Education Department ... T. Diagana, “Existence of almost automorphic solutions to some classes of nonautonomous higher- order differential equations,” Electronic Journal of Qualit...

Ngày tải lên: 21/06/2014, 05:20

... solutions of nonlinear singular third-order two-point boundary value problem,” Journal of Mathematical Analysis and Applications, vol. 323, no. 1, pp. 413–425, 2006. 12 Y. Sun, “Positive solutions of ... Value Problems 13 Z. Du, W. Ge, and X. Lin, “Existence of solutions for a class of third-order nonlinear boundary value problems,” Journal of Mathematical Analysis and Applica...

Ngày tải lên: 21/06/2014, 05:20

... Signal Processing Volume 2011, Article ID 425203, 9 pages doi:10.1155/2011/425203 Research Article ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for ... frequency Number of pulses Number of scatterers N = 2400 PRF = 625 Hz 1024 66 Translational velocity of ship The angle between the velocity and the u axis The initial location...

Ngày tải lên: 21/06/2014, 05:20

... methods for finding a common element of the set of solutions of an equilibrium problem and the set of fixed points of a strict pseudocontraction mapping in the setting of real Hilbert spaces. We proved ... Publishing Corporation Journal of Inequalities and Applications Volume 2011, Article ID 173430, 15 pages doi:10.1155/2011/173430 Research Article An Application of Hybri...

Ngày tải lên: 21/06/2014, 05:20