• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1604
  • 152
  • 125
  • 78
  • 33
  • 30
  • 17
  • 13
  • 9
  • 6
  • 5
  • 5
  • 5
  • 5
  • 5
  • Tagged with
  • 2325
  • 2325
  • 1936
  • 527
  • 526
  • 340
  • 310
  • 292
  • 284
  • 206
  • 182
  • 174
  • 173
  • 163
  • 158
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
311

Innovation on Bluetooth intra-piconet scheduling algorithms /

Ko, Wai Sun. January 2003 (has links)
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 74-77). Also available in electronic version. Access restricted to campus users.
312

Bandwidth allocation and call admission control in multi-services mobile wireless cellular networks /

Li, Bin. January 2003 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 139-144). Also available in electronic version. Access restricted to campus users.
313

Generalized bit and power allocation for single and multi-user OFDM MIMO system in frequency selective fading channel /

Ng, Ka Wai. January 2003 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 89-94). Also available in electronic version. Access restricted to campus users.
314

Efficient computation of weight enumerators and performance bounds for convolutionally coded systems in quasi-static fading channels /

Chan, Siu Yan. January 2009 (has links)
Includes bibliographical references (p. 84-87).
315

Vulnerability of wireless point-to-point systems to interception /

Lim, Wee Pin Melvin. January 2003 (has links) (PDF)
Thesis (M.S. in Engineering Science (Electrical Engineering))--Naval Postgraduate School, December 2003. / Thesis advisor(s): David C. Jenn, Jeffrey B. Knorr. Includes bibliographical references (p. 73). Also available online.
316

Cooperative relay in the next generation wireless networks /

Zhang, Shunqing. January 2009 (has links)
Includes bibliographical references (p. 137-147).
317

The wireless ubiquitous surveillance testbed /

Dennis, LeRoy P. Ford, Michael K. January 2003 (has links) (PDF)
Thesis (M.S. in Information Systems and Operations)--Naval Postgraduate School, March 2003. / Thesis advisor(s): Alex Bordetsky, Randy J. Hess. Includes bibliographical references (p. 101-105). Also available online.
318

Channel probing for an indoor wireless communications channel /

Hunter, Brandon Rosel, January 2003 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Electrical and Computer Engineering, 2003. / Includes bibliographical references (p. 65-66).
319

Identification of metrics used by decision makers to determine the efficacy of wireless communication systems in higher education

Petitto, Karen R. January 1900 (has links)
Thesis (Ed. D.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains vi, 142 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 100-110).
320

I/O test methods in high-speed wireline communication systems

Dou, Qingqi 12 October 2012 (has links)
The advent of serial tera-bit telecommunication and multi-gigahertz I/O interfaces is posing challenges on the semiconductor and ATE industries. There is a gap in signal integrity testing between what has been specified in serial link standards and what can be practically tested in production. A thorough characterization and a more cost-effective test of the signal integrity, such as BER, jitter, and eye margin, are critical to identify and isolate the root cause of the system degradation and to the binning in production. In this dissertation, measurement and testing schemes on signal integrity are explored. A solution for diagnosing jitter and predicting the range of consequent BER is proposed. This solution is applicable to decomposition of correlated and uncorrelated jitter in both clock and data signals. The statistical information of jitter is estimated using TLC functions. TLC treats jitter in its original form, as a time series, resulting in good accuracy in the decomposition. Hardware results in a PLL indicate that the approach is still valid when the traditional histogram-based method fails. This approach can be implemented using only one-shot capture instead of multiple captures to average out the uncorrelated jitter from the correlated jitter. Therefore, the TLC functions enable test time reduction in jitter decomposition compared to traditional averaging methods. Hardware measurements on stressed data signals are presented to validate the proposed technique. We have also explored low cost, high bandwidth techniques using Built In Self Test(BIST) for on-chip jitter measurement. Undersampling provides a lowcost test solution for on-chip jitter measurement. However, it suffers from sampling clock phase error and time quantization noise. These timing uncertainties on the test accuracy of the traditional technique using a single channel structure can be alleviated by extracting the correlation between two channels using a single reference clock. Simulation results indicate that the proposed approach can achieve a better measurement accuracy and a higher degree of tolerance to sampling clock uncertainty and quantization error than does the single-channel structure, with little additional test overhead. TIADCs provide an attractive solution to the realization of analog front ends in high speed communication systems,such as 10GBASE-T and 10GBASEFiber. However, gain mismatch, offset mismatch, and sampling time mismatch between time-interleaved channels limit the performance of TIADCs. A low-cost test scheme is developed to measure timing mismatch using an undersampling clock. This method is applicable to an arbitrary number of channels, achieving picosecond resolution with low power consumption. Simulation results and hardware measurements on a 10GSps TIADC are presented to validate the proposed technique. / text

Page generated in 0.1192 seconds