Báo cáo hóa học: " Research Article Transmit Diversity at the Cell Border Using Smart Base Stations" ppt

... improved at the cell border. By using the CAT, the MT exploits the addi-tional transmit diversity where the maximum is given at the 6 EURASIP Journal on Wireless Communications and Networking at the ... from the desired base station and the other base station. This ratio also indicates where the mo-bile user is in respect to the base stations. For C/I= 0dB the MT is directly between the two ... blockand transmitted by the cellular Alamouti technique using two base stations. The base stations exploit information froma feedback link that the two MTs are in a similar location in the cellular...

Báo cáo hóa học: " Research Article A Note on the Integral Inequalities with Two Dependent Limits" ppt

... Mathematics with Applications,vol. 28, no. 1–3, pp. 227–241, 1994.6 E. Kurpınar, “On inequalities in the theory of diﬀerential equations and their discrete analogues,”Pan-American Mathematical ... Mogol31Department of Mathematics, Fatih University, Buyukcekmece, 34500 Istanbul, Turkey2Department of Mathematics, ITTU, 74200 Ashgabat, Turkmenistan3Department of Mathematics, Ege University, ... 3 includes an application on the boundednessof the solutions of nonlinear diﬀerential equations.2. A Main StatementOur main statement is given by the following theorem.Theorem 2.1. Let ut,...

báo cáo hóa học:" Research Article Comparison Theorems for the Third-Order Delay Trinomial Differential Equations" pptx

... ﬁrst derivative of yt. We have no information about the second and the thirdderivatives, but on the other hand, we know the sign properties of the second and the thirdquasiderivatives of ... note that if E has the property P0, then every positive solution yt satisﬁesD0, and then from the ﬁrst two inequalities of D0, we have the information only about the zero and the ... V  that satisﬁes 2.2. If we eliminate the solutions of degree 2 of E,weget the studied property P0 of E. The next theorem and its proof provide the details.Theorem 2.6. If the ﬁrst-order...

Báo cáo hóa học: " Research Article Opportunistic Adaptive Transmission for Network Coding Using Nonbinary LDPC Codes" pptx

... AIRsystems.AppendicesIn the fol lowing, we derive the calculation for the cumulativedensity function of the achievable rate for the system withconstant information rate and the approximation for the cdfof the ... the source chooses the coderate ri= Ki/N that maximizes the throughput to sink i,i= 1, , M. Overall, the rate vector chosen by the sourceis the one that maximizes the eﬀective throughput, ... γthreshand 0 otherwise,γthreshbeing a threshold that depends on the rate ri.Wewillrefer to our approach as adaptive information rate (AIR),indicating that the number of information bits per...

Báo cáo hóa học: " Research Article Vision-Based Unmanned Aerial Vehicle Navigation Using Geo-Referenced Information" pptx

... between the ﬂight path computed with the PMF (red) and the GPS reference (blue). the PFC to the IPC is the full vision-based KF state while the data sent from the IPC to the PFC is the latitude ... images.Twomainapproachescanbeadoptedtoimageregis-tration: correlation-based matching and pattern matching.In the correlation-based matching the sensed image is placed at every pixel location in the reference image, and then,a similarity ... observable. The elementsof the matrix Fer, Fevand (ωnin×) are quite small as theydepend on the Earth rotation rate and the rotation rate of the navigation frame due to the Earth’s curvature....

Báo cáo hóa học: "Research Article Signal Classiﬁcation in Fading Channels Using Cyclic Spectral Analysis" ppt

... earlier, the fading channel is assumed to be static over the duration of the observation. Here, the initial SOF-based stage was againimplemented with the MRC variant, while the HOCS-basedsystems ... to compute the SOF of the receivedsignal, and (iii) compressing the data into the feature vectorcomposed of the concatenation of−→α and−→f .Asmentionedin Section 2.2, the feature vector ... determine the modulation scheme ofunknown signals [10, 14, 16]. CS-based approaches arebased on the fact that communications signals are not accu-rately described as stationary, but rather more...

Báo cáo hóa học: "Research Article Quad-Quaternion MUSIC for DOA Estimation Using Electromagnetic Vector Sensors" pptx

... 37], the covariance matrix estimationbest illustrates the complexity diﬀerence of the three algo-rithms, therefore we only consider the computational com-plexity involved in this part. The ... independent of the senor orientation error. This can beexplained by noting that PSA-MUSIC does not preserve the polarization information, and thus is independent of the model error in the polarization ... and Γ ⊆ Λ, then the Γ-match of a quad-quaternionmatrix Q∈ (HH)M×N,denotedbyS(Q | Γ), is obtainedby keeping the coeﬃcients of the units in Γ unchanged, andsetting all the other coeﬃcients...

Báo cáo hóa học: " Research Article A Comprehensive Evaluation of Indoor Ranging Using Ultra-Wideband Technology" pptx

... an-tennas from each other throughout the test area. The pream-pliﬁer and power ampliﬁer on the transmit branch boost the signal such that it radiates at approximately 30 dBm from the antenna. After ... between the transmitter and the receiver. Ranging systems based on time-of-ﬂight estimate the delay τfassociated with the arrival of the ﬁrst impulse in the response, or leading edge. Since the ... study of the relationship betweenpath loss and center frequency.where τkdenotes the delay of the arrival in propagating be-tween the transmitter and the receiver, and αkdenotes the complex-valued...

Báo cáo hóa học: " Research Article Clustering Time-Series Gene Expression Data Using Smoothing Spline Derivatives" pptx

... [10]). Instead, the shapes of the curves may provide meaningful information on co-ordinate gene regulations. The suitable mathematical toolto descr ibe this information is the derivative. T herefore, ... recall that our purpose consisted in clustering tem-poral proﬁles according to their shape. In this context, the mathematical tool to be used is the ﬁrst derivative of the curve. Therefore, the ﬁrst ... derivative). On the otherhand, the criterion chosen to agglomerate two clusters was the Ward criterion, general ly advocated by statisticians. Itconsists in fusing the two clusters that minimize...

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