Báo cáo hóa học: "Research Article Digital Receiver Design for Transmitted Reference Ultra-Wideband Systems" pptx

... Communications and Networking Volume 2009, Article ID 315264, 17 pages doi:10.1155/2009/315264 Research Article Digital Receiver Design for Transmitted Reference Ultra-Wideband Systems Yiyin Wang, Geert ... a transmitted- reference UWB receiver, ” Wireless Communica- tions and Mobile Computing, vol. 5, no. 5, pp. 537–549, 2005. [17] Y. Wang, G. Leus, and A J. van der Vee...

Ngày tải lên: 21/06/2014, 23:20

... Wireless Communications and Networking Volume 2009, Article ID 953018, 9 pages doi:10.1155/2009/953018 Research Article Advanced Receiver Design for Quadrature OFDMA Systems Lin Luo, 1, 2 Jian (Andrew) ... improve the bit error ratio (BER) performance. It is shown that advanced detections, for example, DFE and turbo receiver, can significantly improve the performance of Q-OFDMA. C...

Ngày tải lên: 21/06/2014, 23:20

... method to design allotted LDPC codes for DMT channels. The method is general and can be used for every nonuniform channel. This method allows for design of optimized LDPC codes which outperform conven- tional ... Journal on Advances in Signal Processing Volume 2007, Article ID 76146, 9 pages doi:10.1155/2007/76146 Research Article LDPC Code Design for Nonuniform Power-Line C...

Ngày tải lên: 22/06/2014, 19:20

... the IEEE Information Theory Workshop on Information Theory for Wireless Networks (ITW ’07), pp. 1–5, July 2007. [11] J. S. Harsini and F. Lahouti, “Adaptive transmission policy design for delay-sensitive ... are negative; therefore, there exists v for which strict inequality holds in constraint C1. To solve the optimization problem (10) for AMC mode switching levels of v, the Lagran...

Ngày tải lên: 21/06/2014, 11:20

... Corporation Journal of Inequalities and Applications Volume 2009, Article ID 649427, 7 pages doi:10.1155/2009/649427 Research Article An Exponential Inequality for Negatively Associated Random Variables Soo Hak ... inequality for associated random variables,” Statistics & Probability Letters, vol. 77, no. 18, pp. 1730–1736, 2007. 8 G. Xing and S. Yang, “Notes on the exponential...

Ngày tải lên: 21/06/2014, 20:20

... Corporation Journal of Inequalities and Applications Volume 2008, Article ID 243863, 8 pages doi:10.1155/2008/243863 Research Article Strict Stability Criteria for Impulsive Functional Differential Systems Kaien ... systems can represent a truer framework for mathematical modeling of many real world phenomena. Recently, several papers dealing with stability problem for impulsive fun...

Ngày tải lên: 22/06/2014, 06:20

... waits for a message if the buffer is empty. Therefore, the receive primitives are of blocking type, whereas the sent primitives are of nonblocking type. We assume a simple message format for interprocess communication. ... link between a pair of processes i and j consists of two FIFO channels: one for transmitting messages form i to j and one for transmit- ting messages from j to i. We...

Ngày tải lên: 22/06/2014, 06:20

... estimator for the optimal 2P format. Extensions of this algorithm for joint carrier phase/Doppler-shift and Doppler-rate estimation for the 2P format, the 3P format, and the sub-optimum 4P format, ... the CRB for the estimation of Doppler-shift and Doppler-rate are derived. O ur analysis showed that the 2P format is optimum for Doppler-shift estimation and that the 3P format is opti...

Ngày tải lên: 22/06/2014, 19:20

... either uniform QPSK or uniform 8-PSK without channel coding. (2) A 2-layer system using nonuniform 8-PSK without channel coding. (3) A single-layer system using either uniform QPSK or uniform 8-PSK ... performance of our proposed adaptive 2-layer modulation/coding scheme 7 Typically, for a uniform MPSK sig naling scheme, we would expect R (1) c ≤ R (2) c to optimize the performance. However...

Ngày tải lên: 22/06/2014, 19:20

... as function of L,forexample,t sync = 15 is suitable for L = 2, while t sync  20 is appropriate for L = 8. The designed se- quence performs best in that the SNR value, at which the curves for successful ... preamble was designed with d = 0.82 in (14) (according to [24]),anditwillbereferredtoas“designedpreamble”and denoted by p design in the following. The two reference preambles are...

Ngày tải lên: 22/06/2014, 19:20