Báo cáo hóa học: " PAPR reduction of OFDM signals using PTS: a real-valued genetic approach" pptx

... 2011:126 http://jwcn.eurasipjournals.com/content/2011/1/126 Page 8 of 8 RESEARCH Open Access PAPR reduction of OFDM signals using PTS: a real-valued genetic approach Jenn-Kaie Lain * , Shi-Yi Wu and Po-Hui Yang Abstract The partial transmit sequences ... multicarrier nature, one of the major drawbacks in OFDM systems is the high PAPR, causing highout -of- bandradiat...

Ngày tải lên: 20/06/2014, 22:20

... hirobays@eng.u-toyama.ac.jp Department of Intellectual Information Systems Engineering, Faculty of Technology, University of Toyama, 3190 Gofuku, Toyama-shi, Toyama, Japan Yoshizawa et al. EURASIP Journal on Audio, ... numbers of frequencies that can be analyzed by DFT and GHA at each frame length. Success- ful frequency analysis means that the number of spectra of the object sign...

Ngày tải lên: 20/06/2014, 22:20

... number of carriers in the range of interest, the channel can be assumed to have a slow-varying beha- vior, and its variation along the useful part of the OFDM symbol may be approximated as linear ... means of a novel analytical expression that, due to the periodically variant nature o f (a) (b) (c) Figure 5 Bit-rate values of the set of considered channe ls as a function...

Ngày tải lên: 20/06/2014, 22:20

... the large values of the peak-to-average power ratio (PAPR) of the signals transmitted on different antennas can lead to nonlinear distortion and a subsequent degradation of the system performance. ... Sollenberger, Peak-to-average power ratio reduction of an OFDM signal using partial transmit sequences. IEEE Commun Lett. 4(3), 86–88 (2000). doi:10.1109/4234.831033 10. ADS Ja...

Ngày tải lên: 21/06/2014, 03:20

... Access Research Enhancing quality of life in older adults: A comparison of muscular strength and power training Jeffrey A Katula* † , W Jack Rejeski and Anthony P Marsh Address: Department of Health & ... declare that they have no competing interests. Authors' contributions JAK participated in the data analysis and drafted the man- uscript, WJR participated in the study de...

Ngày tải lên: 18/06/2014, 19:20

... and in part because of fear of what others will say about them. Some had learnt to accept RA and attend 'Arthritis school' to learn how to manage their pain and cope in their daily living, ... American College of Rheumatology classification criteria for RA [12], and attending the Arthritis Clinic at Chris Hani Baragwanath Hospital, and living in Soweto, South Africa. Soweto is...

Ngày tải lên: 18/06/2014, 19:20

... Development of a neuropathic pain questionnaire. Clin J Pain 2003, 19:306-314. 8. Bouhassira D, Attal N, Fermanian J, Alchaar H, Gautron M, Masque- lier E, Rostaing S, Lanteri-Minet M, Collin E, Grisart ... given that it is asso- ciated with a wide variety of chronic diseases or condi- tions such as diabetes, carpal or ulnar nerve entrapments, sciatica, spinal cord injury and neuralgi...

Ngày tải lên: 18/06/2014, 19:20

... All authors read and approved the final manuscript. Acknowledgements The authors wish to thank Bernadette Akyuz and Susan Kaplan for their invaluable help with the translation and Ayse Karaduman ... of the Family Impact Scale and were unaware of the purpose of the project. The two backward translations were then reviewed by two of the authors of this paper. The aim of this phase...

Ngày tải lên: 18/06/2014, 19:20

... coordinate data for each trial was then used to cal- culate using Cardan angles. All kinematic calculations were implemented using Visual3D (C-Motion Inc) and the data for both sets of trials for all ... ϑ i   ,where ϑ i and v i are the ith angle and ithvoltagedatapointsinthekinematic and sensor curves after both have been scaled to have a peak-to-peak range of unity. The number...

Ngày tải lên: 19/06/2014, 08:20

... homo- geneity of variances, and for parameters exhibiting differ- ent variances, Welch's ANOVA was run instead of traditional ANOVA; a Post Hoc Test for trend was also applied to different age groups. For ... one-way ANOVA, with age as factor. Results Figure 3 summarizes sample population mean values and standard deviations for all PPs. Mean Values in EO condi- tions for Mean Veloc...

Ngày tải lên: 19/06/2014, 10:20