báo cáo hóa học:" Research Article Accurate Bit Error Rate Calculation for Asynchronous Chaos-Based DS-CDMA over Multipath Channel" pptx

... Processing Volume 2009, Article ID 571307, 12 pages doi:10.1155/2009/571307 Research Article Accurate Bit Error Rate Calculation for Asynchronous Chaos-Based DS-CDMA over Multipath Channel Georges ... Dogancay An accurate approach to compute the bit error rate expression for multiuser chaosbased DS-CDMA system is presented in this paper. For more real...

Ngày tải lên: 21/06/2014, 20:20

... stereo at low bit rates, was coded at a bit rate of 32 kbps with a sampling rate of 16 kHz. Video bitstreamswerecodedatapicturesizeof176 × 144 pixels, a bit rate of 128 kbps, and a frame rate of 12.5 ... Internet Engineering Task Force Request for Comments 2733, December 1999. [18] A. H. Li, “RTP payload format for generic forward error cor- rection,” Internet Engineering...

Ngày tải lên: 22/06/2014, 19:20

... Corporation Advances in Difference Equations Volume 2009, Article ID 273545, 9 pages doi:10.1155/2009/273545 Research Article On the Identities of Symmetry for the ζ-Euler Polynomials of H igher Order Taekyun ... 2.17 Acknowledgment The present research has been conducted by the research grant of the Kwangwoon University in 2009. References 1 T. Kim, “Symmetry p-adic invariant...

Ngày tải lên: 21/06/2014, 20:20

... of all sink nodes. We generate 100 connected network instances for each simulation and spawn multirate queries in each network instance for 100 times. The average performance for the queries in each ... N-strateg y reflects the cumulative overhead of all queries, while the cost of E-strategy is only a part of that, owing to its bandwidth sharing property. E-strategy with PST outper- form...

Ngày tải lên: 22/06/2014, 19:20

... Figure 7. Increasing the rate constraint R 1 from 0 to 1200 bits/TTI by fixed rate constraint R 2 = 400 bits/TTI, we compare both algorithms in terms of sum rate and failure rate. The proposed algorithm ... occupied and used both for user data and feedforward control information. The num- ber of subcarriers reserved for the feedforward channel is determined by the amount of the cont...

Ngày tải lên: 22/06/2014, 19:20

... s 4 k,j , j  1, 2, the asymptotic formulas 3.2 are valid for k ≥ N. 4. The Asymptotic Formulas for the Eigenfunctions Now, we obtain asymptotic formulas for eigenfunctions under the distinct ... Problems Volume 2010, Article ID 720235, 21 pages doi:10.1155/2010/720235 Research Article Accurate Asymptotic Formulas for Eigenvalues and Eigenfunctions of a Boundary-Value Prob...

Ngày tải lên: 21/06/2014, 11:20

... saturate and even decrease when error rates increase. This is due to the fact that when an error occurs, the bit contexts are affected. With a high number of errors, contexts of erroneous bits are ... the bits in a raw mode than to try to reconstruct the bit- planes with parity information. In the following results, the threshold value has been set to a bit error rate between corr...

Ngày tải lên: 21/06/2014, 20:20

... 2: Flipped Bits. Let us now consider the system in Figure 2. To make the bit stream uniform, we have introduced a random bit flipping before the interleaver Π, that is, U  k = U k F k for all k, ... Advances in Signal Processing Volume 2009, Article ID 354107, 6 pages doi:10.1155/2009/354107 Research Article Random Bit Flipping and EXIT Charts for Nonuniform Binary Sources and...

Ngày tải lên: 21/06/2014, 20:20

... Kbit/s 3 Kbit/s 0–5.5kHz 6Kbit/s 5.5–11 kHz 11–16.5kHz 16.5–22 kHz RPE-8 RPE-2 +EP RPE-2 10 Kbit/s 12 Kbit/s RPE-2 13 Kbit/s 14 Kbit/s RPE-2 +EP 5Kbit/s RPE-8 Layer 1: 24 Kbit/s Layer 2: 38 Kbit/s Layer ... set to 4 Kbit/s for the first two layers (resulting in stereo audio bit rates of 28 and 42 Kbit/s) and to 8 Kbit/s for the last three layers (stereo audio bit rates of 63, 73, and 8...

Ngày tải lên: 22/06/2014, 19:20

... Bohner, B. Karpuz, and ¨ O. ¨ Ocalan, “Iterated oscillation criteria for delay dynamic equations of first order,” Advances in Difference Equations, vol. 2008, Article ID 458687, 12 pages, 2008. 10 ... xt > 0 with x Δ n t ≤ 0 for t ≥ t 0 and not eventually zero. If x is bounded, then 1 lim t →∞ x Δ i t0 for 1 ≤ i ≤ n − 1, 2−1 i1 x Δ n−i t > 0 for all t ≥ t 0 and...

Ngày tải lên: 21/06/2014, 05:20