Báo cáo hóa học: "Research Article Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based " docx

... pages doi:10.1155/2009/368752 Research Article Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based Testbed Per Zetterberg, 1 Christos Mav rokefalidis, 2 Aris S. Lalos, 2 and Emmanouil Matigakis 3 1 ACCESS ... channel estimation are a ected by the noise at the relay, and of the back-off.Thuswecan not estimate the relay-to-destination propagation cha...

Ngày tải lên: 21/06/2014, 20:20

... LOS and NLOS channel measurement, using a TX antenna placed on the human body and a separate RX antenna located externally. Section 2 introduces EURASIP Journal on Wireless Communications and ... significantly degrade the impedance of a monopole omnidirectional antenna. The measured path loss and multipath analysis suggest that a LOS UWB channel is excellent for low-power, high-d...

Ngày tải lên: 21/06/2014, 07:20

... feedback. Our evaluation is based on an extensive outdoor measure- ment campaign using practical setups of the basestation antennas and receiver positions. The comparison of the mea- sured data ... estimated channel coefficients include all amplification and attenuation factors (including transmit power normalization) applied to the signal after the training signal generation. These attenu...

Ngày tải lên: 22/06/2014, 06:20

... in- formation on the infrastructure network, the appropriate charging and rewarding actions may be applied. These ac- tions can take in consideration many individual parameters, Miguel Almeida et al. ... Miguel Almeida et al. 7 Application QoS control PACP AODV MMARP GW INFO Trafficcontrolshaper MAC measurement module 802.11b MAC Integrated modules Charging and rewarding admission control Dat...

Ngày tải lên: 22/06/2014, 19:20

... Vasundhara Devi, Theory of Fractional Dynamic Systems, Cambridge Academic, Cambridge, UK, 2009. 7 V. Lakshmikantham and A. S. Vatsala, “Basic theory of fractional differential equations,” Nonlinear Analysis. ... solutions for boundary value problem of nonlinear fractional differential equation,” Journal of Mathematical Analysis and Applications, vol. 311, no. 2, pp. 495–505, 2005. Ad...

Ngày tải lên: 21/06/2014, 05:20

... Aprahamian, D. Souroujon, and S. Tersian, “Decreasing and fast solutions for a second-order difference equation related to Fisher-Kolmogorov’s equation,” Journal of Mathematical Analysis and Applications, ... and G. Ladas, Dynamics of Second Order Rational Difference Equations with Open Problems and Conjectures, Chapman & Hall/CRC, Boca Raton, Fla, USA, 2002. 4 H. M. El-Owaidy, A....

Ngày tải lên: 21/06/2014, 11:20

... performs target detection, eventually aided by the previously obtained tracking information, and target location based on standard trilateration. The target location aims at forming an image of the monitored ... anchors. 4. ANALYSIS OF A MULTISTATIC RADAR The considerations carried out in Section 3 are here applied to a multistatic UWB radar with one transmitter and N receivers, to...

Ngày tải lên: 21/06/2014, 22:20

... part of the channel only. 3.1. Delay optimization based on the strongest path Inserting random delay does not make the full use of the multipath channel’s feature. An optimal delay allocation approach ... [10]. A more detailed list of the simulation parameters is given in Tab le 1 . With fractional feedback, delay optimization based on strongest path further enhances the channel r...

Ngày tải lên: 21/06/2014, 22:20

... correlation is calculated for each pair of genes based on different measures, such as Pearson correlation, Spearman correlation, and mutual information. The widely used Pearson correlation indicates ... strength of a linear relationship between the genes. In contrast to that Spear- man’s rank correlation can detect nonlinear correlations as well as mutual information. It is assumed tha...

Ngày tải lên: 22/06/2014, 00:20