Báo cáo hóa học: " Research Article Bit Loading Algorithms for Cooperative OFDM Systems" pptx

... Communications and Networking Volume 2008, Article ID 476797, 9 pages doi:10.1155/2008/476797 Research Article Bit Loading Algorithms for Cooperative OFDM Systems Bo Gui and Leonard J. Cimini ... complexity-performance tradeoff. A distributed bit loading algorithm is also proposed for ad hoc networks. Simulation results show that significant performance gains can be achi...

Ngày tải lên: 22/06/2014, 19:20

... 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 define the spherical translation operator ... 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...

Ngày tải lên: 21/06/2014, 05:20

... Corporation Fixed Point Theory and Applications Volume 2011, Article ID 701519, 30 pages doi:10.1155/2011/701519 Research Article Solvability and Algorithms for Functional Equations Originating from Dynamic ... y, sx, yfcx, y} for all x ∈ S. A few iterative algorithms for solving the functional equation are suggested. The existence, uniqueness and iterative approximati...

Ngày tải lên: 21/06/2014, 05:20

... of Inequalities and Applications Volume 2010, Article ID 312602, 18 pages doi:10.1155/2010/312602 Research Article Hybrid Projection Algorithms for Generalized Equilibrium Problems and Strictly ... and convex for each n ≥ 1. From the assumption, we see that C 1  C is closed and convex. Suppose that C m is closed and convex for some m ≥ 1. We show that C m1 is closed and convex...

Ngày tải lên: 21/06/2014, 07:20

... the identity of WAAA it is associated with as Information Elements (IEs). Element IDs 7–15 and 32–255 are reserved for future use and can be used for this purpose [22]. Handover related decisions ... Networking Volume 2009, Article ID 806563, 16 pages doi:10.1155/2009/806563 Research Article Pre-Authentication Schemes for UMTS-WLAN Interworking Ali Al Shidhani and Victor C. M. Leu...

Ngày tải lên: 21/06/2014, 20:20

... jitter estimation algorithms that were evaluated. A comparison of the algorithms for both pitch marking and jitter estimation is then presented. A set of 14 tools, combining the different algorithms, ... normal procedures for a correct Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009, Article ID 567875, 9 pages doi:10.1155/2009/567875 Rese...

Ngày tải lên: 21/06/2014, 20:20

... on Advances in Signal Processing Volume 2008, Article ID 580368, 7 pages doi:10.1155/2008/580368 Research Article Performance of Multiple-Relay Cooperative Diversity Systems with Best Relay Selection ... accurate approximate solution obtained in the previous sections for the total SNR that we have a closed-form expression for the PDF. For this obtained PDF, the technique develop...

Ngày tải lên: 21/06/2014, 22:20

... Corporation Journal of Inequalities and Applications Volume 2008, Article ID 870950, 4 pages doi:10.1155/2008/870950 Research Article On Logarithmic Convexity for Ky-Fan Inequality Matloob Anwar 1 and J. Pe ˇ cari ´ c 1, ... ϕ s x is 3-convex for x>0. Theorem 2.2. Define the function ξ s  1 P n n  i1 p i  ϕ s  2a − x i  − ϕ s  x i  − ϕ s 2a − x ϕ s x2.2 for x i...

Ngày tải lên: 21/06/2014, 22:20

... 30 Q-OFDMA P = 64 Q-OFDMA P = 16 OFDMA1 OFDMA2 OFDMA3 MMSE ZF Figure 5: BER of uncoded systems with BPSK modulation under CM2 channel model, where N = 256. the system performance and Q-OFDMA is inferior ... 20 Q-OFDMA, ZF, no iteration Q-OFDMA, MMSE, no iteration Q-OFDMA, MMSE, 2 iterations Q-OFDMA, MMSE, 5 iterations Q-OFDMA, FD-DFE Figure 6: BER performance comparison between Q-OFDMA system...

Ngày tải lên: 21/06/2014, 23:20

... therefore x ∗ satisfies the original optimization problem. In other words, if we solve the reformulated problem for some λ ≥ 0 and get back a configuration for which  i B i (x i ) is C, for that ... was shown for the general case with multiple Lagrange multipliers by Everett [5]; for clarity I summarize his argument for the multiple- cell, single-λ case of (7)here. Theorem 1. For...

Ngày tải lên: 21/06/2014, 23:20