Báo cáo hóa học: " Non-Data-Aided Feedforward Carrier Frequency Offset Estimators for QAM Constellations: A Nonlinear Least-Squares Approach" potx

... Corporation Non-Data-Aided Feedforward Carrier Frequency Offset Estimators for QAM Constellations: A Nonlinear Least-Squares Approach Y. Wa n g Department of Electrical Engineering, Texas A& amp;M University, ... Publication by Tomohiko Taniguchi This paper performs a comprehensive performance analysis of a family of non-data-aided feedforward carrier frequ...

Ngày tải lên: 23/06/2014, 01:20

... illustration and analysis, we assume that each user has a single transmit antenna. The base-station has n r receive antennas, where n r ≥ n t .The received signal at the ith receive antenna can be ... power delay profile and root mean square delay spread equal to 2 sampling intervals. The other simulation parameters are the same as in the uniform power delay profile simulations. Simulation re...

Ngày tải lên: 21/06/2014, 05:20

... Giannakis, and S. Barbarossa, Non-data-aided carrier offset estimators for OFDM with null subcarriers: identifiability, algorithms, and performance,” IEEE Journal on Selected Areas in Communications, ... literature. They can be broadly classified into data-aided and non-data-aided schemes depending on whether or not a t raining sequence is used. Generally speaking, non-data-aided a...

Ngày tải lên: 22/06/2014, 20:20

... time as a percen- tage of the movement duration (%Dur). Joint angle mathematical characterization and accuracy After data normalization, each joint angula r profile was mathem atically characterized ... (R 2 <0.8) were trea ted separately and only a min , a max and ROM, as ca lculated from the measured data, were included in the analysis. Statistical analysis Considering the small sa...

Ngày tải lên: 19/06/2014, 08:20

... transmit antenna Tx 1 has the same PAPR as the original SC-FDMA signal y Tx 0 , both for localized and for distributed subcarrier mapping. In the case of localized subcarrier mapping for example, ... double Ala- mouti pairs are formed. Let subcarrier numbering starting at n A 0 =0 ; n B 0 can be either null or take another positive value. n A and n B are auxiliary parameters indicat...

Ngày tải lên: 21/06/2014, 00:20

... the HRA were streamed in real time to a b ase station at a frequency of 625 Hz and then exported to AcqKnowledge 4.0 (Biopac Sys- tems, Inc., Santa Barbara, CA) for analysis. COM acce l- erations ... analysis and manuscript preparation. EMB and RP performed data analysis and contributed to manuscript preparation. JJB, SMJ, AMG and SRK participated in the design and coordination of the...

Ngày tải lên: 19/06/2014, 08:20

... reported methods and the proposed method to actual LR images captured from a commercially available camera “Canon IXY DIGITAL 50”. We, respectively, show two test images in Figures 1 9a and 2 0a and their training ... Chakrabarti, AN Rajagopalan, R Chellappa, Super-resolution of face images using kernel PCA-based prior. IEEE Trans. Multimedia 9(4), 888–892 (2007) 21. B Sch¨olkopf, A Smo...

Ngày tải lên: 20/06/2014, 04:20

... commonly appearing variables in the paper to facilitate the reader. The vari- ables are listed in the order they appear in Table 2 below. Appendix 2: Finding a shortest path on a dag Shortest path ... that can be made at the medium access control. In the recent ye ars, there is ample evidence of how the variables associated with a particular layer depend on variables associated with oth...

Ngày tải lên: 20/06/2014, 22:20

... chooses a data rate, which is appropriate for a subcarrier having the worst channel condition over all subcarriers. All three methods use the 4- way handshaking procedure (RTS/CTS/DATA/ACK) defined in ... broadband channel model. All of the stations except for the AP are randomly distributed in a circular area with a diameter of 100 meters and move randomly at a speed of 1 m/sec....

Ngày tải lên: 21/06/2014, 17:20

... (2009) 14. Eslamian, M, Abkar, A: A fixed point theorems for generalized weakly contractive map- pings in complete metric space. Ital. J. Pure Appl. Math. (in press) 15. Harjani, J, Sadarangani, K: ... metric spaces. Appl. Math. Lett. 25, 6–10 (2012). 3. Harjani, J, Sadarangani, K: Generalized contractions in partially ordered metric spaces and applications to ordinary differential equatio...

Ngày tải lên: 21/06/2014, 17:20