Báo cáo hóa học: " Research Article Sum Rate Optimization by Spatial Precoding for a Multiuser MIMO DFT-Precoded OFDM Uplink" ppt

... 2011, Article ID 927936, 12 pages doi:10.1155/2011/927936 Research Ar ticle Sum Rate Optimization by Spatial Precoding for a Multiuser MIMO DFT-Precoded OFDM Uplink Hanguang Wu, 1 Thomas Haustein ... multiuser MIMO OFDM systems as a means to reducethePAPRofthetransmitwaveform.Forpractical interest, we assume that a simple linear zero forcing (ZF) MIMO e...

Ngày tải lên: 21/06/2014, 05:20

... on a time scale,” Journal of Mathematical Analysis and Applications, vol. 319, no. 1, pp. 315–325, 2006. 35 R. Agarwal, M. Bohner, and A. Peterson, “Inequalities on time scales: a survey,” Mathematical Inequalities ... scales,” Journal of Computational and Applied Mathematics, vol. 141, no. 1-2, pp. 227–235, 2002. 34 E. R. Kaufmann and Y. N. Raffoul, “Periodic solutions for a neut...

Ngày tải lên: 21/06/2014, 07:20

... received and ap i = a 3 a 2 a 1 a 0 known aprioriat M 1 , the QPSK constellation for demodulat- ing b 1 b 0 is looked up in Ta ble 1 by using a 3 a 2 a 1 a 0 as an index. For example, when a 3 a 2 a 1 a 0 = ... Constellations Suhua Tang, 1 Hiroyuki Yo mo, 1, 2 Tetsuro Ueda, 1 Ryu Miura, 1 and Sadao Obana 1 1 ATR Adaptive Communications Research Laboratories, 2-...

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... sum- rate LP RM (b) 0 20 40 60 80 100 120 1234 56789 Number of antennas Achieved sum- rate Spatial water-filling (c) Figure 15: Achieved sum- rate versus the number of antennas for selected scenarios: (a) TSD -MIMO, (b) SVD -MIMO, and (c) spatial waterfilling ... the results are averaged over 2000 channel realizations (Case A) and for specific channel realizations (Cases B and...

Ngày tải lên: 21/06/2014, 11:20

... data is transmitted on forward link, the information for estimating available bandwidth should be provided by the forward rate of data packets. TCP New Jersey [28] proposed timestamp-based available ... jitter ratio in JSCTP, we should validate parameter settings of jitter ratio and k/w ratio to choose a suitable one for improving better performance. Bad value of parameters may rais...

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... initialization phase and ask to broadcast their location information locally. After the initialization phase, it is assumed that static and mobile nodes manage to have time synchronization at each time ... twwewelw@syr.edu Received 25 April 2010; Revised 15 January 2011; Accepted 4 February 2011 Academic Editor: Amiya Nayak Copyright © 2011 T. Wimalajeewa and S. K. Jayaweera. This is an open...

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... e also implemented directly as a dedicated software program using a software programming language, such as Java. Our requirements management meta-model can be, and has been, implemented as a ... such system parameters, their associations to requirements, and carry out at least simple calculations with them. More demanding analysis must be naturally separated to external analysis tools....

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... J. Caballero and K. Sadarangani, “Hermite-Hadamard inequality for fuzzy integrals,” Applied Mathematics and Computation, vol. 215, no. 6, pp. 2134–2138, 2009. 8 J. Caballero and K. Sadarangani, ... inequality for fuzzy integrals,” Applied Mathematics and Computation, vol. 195, no. 1, pp. 94–99, 2008. 11 J. Caballero and K. Sadarangani, A Cauchy-Schwarz type inequality for fuzzy int...

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... discriminative, but also have to low intraclass variations. Such requirements tr anslate to both low false acceptance rate (FAR) and low false rejection rate (FRR). Additionally, from the template ... phase domain has the advantage that a circularly symmetric two-dimensional feature density results in a simple uniform phase density. Additionally, we apply user-specific phase adaptation...

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... hybrid methods introduced by Nakajo and Takahashi 3 for a nonexpansive mapping. Recently, Takahashi et al. 4 proposed a shrinking projection method for nonexpan- sive mappings T n : C → C.Letx 0 ∈ ... for nonexpansive mappings and nonexpansive semigroups,” Journal of Mathematical Analysis and Applications, vol. 279, no. 2, pp. 372– 379, 2003. 4 W. Takahashi, Y. Takeuchi, and...

Ngày tải lên: 21/06/2014, 05:20