Báo cáo hóa học: " Research Article A Simplified Constant Modulus Algorithm for Blind Recovery of MIMO QAM and PSK Signals: A Criterion with Convergence Analysis" ppt

... kurtosis of the real parts of the symbols. It is always negative in the case of PSK and QAM signals. A. Ikhlef and D. Le Guennec 11 have almost the same behavior. So, in the case of QAM sig- nals, ... compared to that of CMA and MMA. Because, instead of using both real and imaginary parts as in CMA and MMA, only one dimension, the real or imaginary part, is consid...

Ngày tải lên: 22/06/2014, 06:20

... overhead of WSNHA-LBAR and LAR was better than that of AODVjr when WSNHA-LBAR and LAR maintained a high packet delivery ratio. However, the performance for packet average delay of LAR and AODVjr was ... metrics for WSNHA-LBAR, LAR, and AODVjr in different scenarios. The performance for overhead of WSNHA-LBAR and LAR was better than that of AODVjr when WSNHA-LBAR an...

Ngày tải lên: 21/06/2014, 05:20

... is a handover to a wireless network with a smaller cell size and (usually) higher bandwidth per unit area; an upward VHO (UVHO) is a handover to a wireless network with a larger cell size and ... Al-Gizawi, K. Peppas, D. I. Axiotis, E. N. Protonotarios, and F. Lazarakis, “Interoperability criteria, mechanisms, and eval- uation of system performance for transparentl...

Ngày tải lên: 21/06/2014, 23:20

... available channel bandwidth but also to the characteristics of the terminal devices. Video transcoding has recently emerged as a new research area concerning a set of manipulation and adaptation tech- niques ... understand the advantages of the proposed approach, by focusing the attention on the most important aspects under analysis, which are the accuracy and the com- putatio...

Ngày tải lên: 22/06/2014, 20:20

... conventional virtual MIMO with a single antenna per UE (black) and by using a spatial precoder according to Figure 2 with fixed optimization order (red and blue) and a spatial scheduler (green) for an ... selective fading and low- computational complexity for channel equalization using frequency domain equalization (FDE) [1]. However, a major drawback of OFDM (A) is...

Ngày tải lên: 21/06/2014, 05:20

... full and balanced database error rates is provided in Table 1 .Ascan be observed, the EERs and FNMRs for the balanced database are about twice as low as for the full database (FRRs). 2.3. Statistical ... Journal on Advances in Signal Processing Table 2: Results for the Kruskal-Wallis test and analysis of variance (ANOVA) test for the optical and capacitive sensors. The facto...

Ngày tải lên: 21/06/2014, 19:20

... This allows to reduce the computing power and the communication bandwidth to a necessary minimum if only algorithm with changed input data is executed and only data packages with changed data values ... the advantages of low level programming languages like IL, LD, FuB, and ST with the advantages of high level programming languages like C, Java, and Delphi in one functio...

Ngày tải lên: 22/06/2014, 19:20

... 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...

Ngày tải lên: 21/06/2014, 05:20

... G 00 is used as the center image, thatis, G c ,and the four neighboring red and green images at each s ide are used. The red and green images at each sampling position are defined as R p and G p where ... Flowchart of the proposed edge adaptive color demosaicking algorithm. when the global shift and the local edge directions are coincided. With the measured local variation and...

Ngày tải lên: 21/06/2014, 08:20

... Nakagami-m fading channel is seen as an additive noise channel whose noise is modeled as the ratio between a Gaussian random variable and a Nakagami- m random variable. Exact and closed-form expressions ... for an AWGN channel, a closed-form expression for the BEP of M -QAM for an AWGN channel has been derived only in 2002 [4]. Regarding the performance evaluation of QAM...

Ngày tải lên: 21/06/2014, 08:20