Báo cáo hóa học: " Research Article DOA Estimation in the Uplink of Multicarrier CDMA Systems" docx

... denotes the phase angle of λ ∗  in the interval [ −π, π). The following remarks are of interest. (1) A necessary condition for the existence of (V H 1 V 1 ) −1 in RHS of (26) is that the number of ... involved in the estimation of the DOAs which makes this problem much more challenging than in single- user transmissions. The solution we propose allows es...

Ngày tải lên: 22/06/2014, 19:20

... closure instant (GCI) since it corresponds to a discontinuity in the glottal flow caused by the abrupt closure of the vocal folds, interru pting the passage of the air through the glottis. Since the ... in the same graph it can be proved that the number of crossings of both components is equal to the number of samples of jitter (ε) of the sig nal. This m...

Ngày tải lên: 21/06/2014, 20:20

... to reach the target BER are shown in Figure 5. Notice that the BER is independent of the sym- bol locations in the burst due to the use of interleavers. The algorithm appears maintainable with ... ···y K (t)] T is the K × 1vec- tor of signals at the beamformer outputs, H is the K × K beamforming matrix (i.e., the product of the matrix of steer- ing vectors...

Ngày tải lên: 22/06/2014, 19:20

... refer to the notation in Ta bl e 1 regarding the terminology used in the rest of this paper. Let I be the total number of frames in V c .LetM be the total number of pixel rows in each frame of V c , ... technique which requires an initial halftone of the image as the initial guess (or the starting point). The initial halftone of the image is iteratively...

Ngày tải lên: 21/06/2014, 08:20

... models to describe the motion of a fluid in a container or to describe the displacement of a fluid in a medium without gravity; see 1–5 for more information. In recent years, the problem has attracted ... has attracted a great deal of people. Lions 6 used the theory of maximal monotone operators to solve the existence of solution of the following problem: Δu ...

Ngày tải lên: 21/06/2014, 11:20

... on the length of the TCP connection in terms of number of hops for RPGM because of the strict movements of nodes. On the other hand, for FRW and MAN, the higher the node speed, the higher the tendency ... speeds due to the unnecessary increase in the route length. Our findings in this paper shall help the research community in understanding better the...

Ngày tải lên: 21/06/2014, 11:20

... 9: Main memory and controller configurations of the Intel Xeon. included in the instruction set of both the cores, so as to make the memory access comparison void of all other differences in the ... results in a DRAM access. Pipeline. The pipeline of the modeled Opteron consists of four stages, mainly the prefetch, decode, execute, and the store. The prefetch...

Ngày tải lên: 21/06/2014, 18:20

... Function. The utility function of the game is a measure of the net cooperation gain of each individual node. It is defined in terms the attainable benefit of cooperation and the cost incurred. The attainable ... characterized by a lack of trust among the players since each terminal is uncertain about the intention of other terminals in the cooperative network....

Ngày tải lên: 21/06/2014, 20:20

... completes the proof. Proof of Theorem A. From Lemmas 3.2, 4.11 and 4.12,andTheorem 4.2,wegettheresults. 5. Upper Semicontinuity of Attractors In this section, we present the approximation to the uniform ... lack of compactness of Sobolev embeddings for obtaining existence of global attractors. Authors in 5–7 consider the autonomous partial equations on unbounded domain...

Ngày tải lên: 21/06/2014, 20:20

... boundary layers. In recent years, the study of contrast structures is one of the hot research topics in the study of singular perturbation theory. In western society, most works on internal layer ... shown in 6 that the existence of an internal transition layer for the problem 1.1 is closely related to the existence of a heteroclinic orbit connecting M 1 an...

Ngày tải lên: 21/06/2014, 20:20