Báo cáo hóa học: " Rapid Prototyping for Heterogeneous Multicomponent Systems: An MPEG-4 Stream over a UMTS " ppt

... Virtex-E and Virtex-II FPGAs, and PCs. The calculations and data transfers are executed in paral- lel. RAM and SAM communication models have been tested for PCI transfers. Higher transfer rates are ... application behavior. These applica- tions are a mixture of transformation and reactive operators [3]. A transformation operator is based on the data-driven process: input data is transfo...

Ngày tải lên: 22/06/2014, 23:20

... three subchannels, Packet Random Access CHannel (PRACH), Packet Access Grant CHannel (PAGCH), and Packet Paging Channel (PPCH) [43]. GPRS stations use the PRACH to initiate a packet transfer by ... Control and Evaluations The essential mechanisms to coordinate distributed channel access control follow two channel access schemes; (1) random channel access scheme,suchasCSMA,CSMA/CA, and pure...

Ngày tải lên: 21/06/2014, 23:20

... variance of the ith subband, and σ 2 x is the variance of the input signal. A zero mean unit variance AR(1) process with correlation coefficient ρ = 0.95 is an accurate approximation of natural images ... Lagrangian local search was introduced in [22] and later applied to filter bank design in [23] and peak con- strained least squares (PCLS) FIR design in [24, 25]. The discrete Lagrangian lo...

Ngày tải lên: 23/06/2014, 00:20

... USA, 1987. [24] M. A. Fischler and R. C. Bolles, “Random Sample Consen- sus: A Paradigm for Model Fitting with Applications to Image Analysis and Automated Cartography,” Communications of the ACM, ... Mich, USA, 1996. [5] P. Bahl and V. N. Padmanabhan, “RADAR: an in-building RF- based user location and tracking system,” in Proceedings of 19th Annual Joint Conference of the IEEE Compute...

Ngày tải lên: 22/06/2014, 23:20

... Yokoyama Nanotechnology Research center, Fujitsu Lab. Ltd., Morinosato-Wakamiya 10-1, Atsugi, Kanagawa 243-0197, Japan e-mail: song.hai-zhi@jp.fujitsu.com Y. Sakuma Æ M. Kawabe Nanomaterials Laboratory, National Institute ... dots are about 1.5 (big) and 1.2 nm (small) and the depth of holes are 1.4 (big) and 1.1 nm (small), Fig. 2 Top-view AFM images and line profiles of a square- latticed...

Ngày tải lên: 22/06/2014, 22:20

... NANO EXPRESS Open Access Rapid large-scale preparation of ZnO nanowires for photocatalytic application Chunyu Ma 1 , Zhihua Zhou 1,2† , Hao Wei 1 , Zhi Yang 1 , Zhiming Wang 2 and Yafei Zhang 1*† Abstract ZnO ... article as: Ma et al.: Rapid large-scale preparation of ZnO nanowires for photocatalytic applicat ion. Nanoscale Research Letters 2011 6:536. Submit your manuscript to a j...

Ngày tải lên: 20/06/2014, 22:20

... invoked for gate-level synthesis. Place androutetoolssuchasXilinxISEareusedtogen- erate gate-level bit -stream file. For hardware verifica- tion and validation, a configurable Nallatech hardware platform ... 0 NCO Vehicular Pedestrian Wireless channel Figure 1: A realistic MIMO-CDMA tr ansmitter block diagram with digital baseband and analog RF modules. RF/IF downconverter ADC Covarianc...

Ngày tải lên: 22/06/2014, 22:20

... H ¨ am ¨ al ¨ ainen, J. Saloranta, J P. M ¨ akel ¨ a, I. Oppermann, and T. Patana, “Ultra-wideband signal impact on the perfor- mances of IEEE 802.11b and bluetooth networks,” Interna- tional ... Heterogeneous Ultra-Wideband Systems Yongjing Zhang, 1 Haitao Wu, 2 Qian Zhang, 3 and Ping Zhang 1 1 Beijing University of Posts and Telecommunications, China 2 Microsoft Research Asia, Beijing, C...

Ngày tải lên: 22/06/2014, 22:20