Electrical Engineering http://hdl.handle.net/10125/2046 Sun, 26 May 2013 08:12:56 GMT 2013-05-26T08:12:56Z Device modeling of transconductance threshold voltage reference devices http://hdl.handle.net/10125/20941 Mon, 01 May 2006 00:00:00 GMT http://hdl.handle.net/10125/20941 2006-05-01T00:00:00Z Lindsey, Imiola Generalized constructions, decoding and implementation of LDPC codes http://hdl.handle.net/10125/20577 Thesis (Ph.D.)--University of Hawaii at Manoa, 2008.; Doubly GLDPC (DGLDPC) codes are proposed to compensate the rate loss of GLDPC codes. EXIT charts are used to analyze DGLDPC codes and EXIT functions for variable component codes are thoroughly discussed. Based on EXIT charts, differential evolution is used to optimize their threshold. Ensemble weight enumerators are generalized to protograph-based DGLDPC codes. Simulation results show that DGLDPC codes constructed based on these results can improve the performance of their LDPC and GLDPC counterparts in both the waterfall region and the error floor region.; Low-density parity-check (LDPC) codes have received significant attention due to their near-Shannon-limit error performance. The belief propagation (BP) algorithm is the best-known decoding algorithm for LDPC codes. However it often needs several tens or hundreds of iterations to converge. Although fast convergence BP algorithms have been proposed, there is neither an easy tool to analyze their performance nor a standard VLSI architecture to implement them. Moreover, there exists a trade-off between waterfall (i.e., threshold) and error floor (i.e., minimum pseudo distance) performances for LDPC codes. For generalized LDPC (GLDPC) codes, better minimum distance properties can be achieved, but at the expense of a rate loss.; This research investigates performance analysis and hardware implementation of LDPC codes using fast convergence algorithms. Closed-form extrinsic mutual information transfer (EXIT) functions for several fast convergence BP decoding algorithms are proposed. It is shown theoretically that these algorithms converge faster than standard BP, while the corresponding thresholds remain unchanged. Since these algorithms are of serial nature, their parallelization without compromising convergence speed and error performance is also investigated. This result is useful in hardware implementation because in practice partly parallel decoding schemes are often used. This result also sheds some light on how to group nodes in order to preserve performance. The VLSI architecture of a particular decoding algorithm for LDPC codes is proposed. This approach can be adopted in many standards to achieve a large throughput.; Includes bibliographical references (leaves 118-127).; Also available by subscription via World Wide Web; 127 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20577 2008-01-01T00:00:00Z Wang, Yige Hardware implementation of real time ECG analysis algorithms http://hdl.handle.net/10125/20576 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 115-116).; xi, 116 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20576 2008-01-01T00:00:00Z Shukla, Ashish Class document frequency as a learned feature for text categorization http://hdl.handle.net/10125/20575 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 56-58).; vii, 58 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20575 2008-01-01T00:00:00Z Sharma, Anand Model based approach for fault detection and prediction using particle filters http://hdl.handle.net/10125/20574 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 58-60).; viii, 60 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20574 2008-01-01T00:00:00Z Mishra, Manisha PMODFET and NMOSFET broadband mixer design http://hdl.handle.net/10125/20573 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 84-85).; xii, 85 leaves, bound ill. 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20573 2008-01-01T00:00:00Z Hong, Yun-Pyo DC offset compensation for CW direct conversion doppler radar vital sign monitor http://hdl.handle.net/10125/20572 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 133-135).; viii, 135 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20572 2008-01-01T00:00:00Z Vergara, Alexander M Novel antenna technologies for small-satellite and terestrial applications http://hdl.handle.net/10125/20571 Thesis (M.S.)--University of Hawaii at Manoa, 2008.; Includes bibliographical references (leaves 99-105).; x, 105 leaves, bound 29 cm Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10125/20571 2008-01-01T00:00:00Z Takase, Brandon O Level-weighed wavelet fusion : a soft decision image fusion technique http://hdl.handle.net/10125/20570 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references.; viii, 93 leaves, bound 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20570 2007-01-01T00:00:00Z Bang, Jeong Hwan Online scheduling of periodic lightpath request with flexibility http://hdl.handle.net/10125/20569 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references (leaves 44-45).; viii, 45 leaves, bound ill. 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20569 2007-01-01T00:00:00Z Ye, Luning Survivable routing in WDM networks with guaranteed minimum network bandwidth http://hdl.handle.net/10125/20568 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references.; vi, 47 leaves, bound ill. 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20568 2007-01-01T00:00:00Z Wang, Ye Maximizing network resource utilization through dynamic delay allocation adjustment http://hdl.handle.net/10125/20567 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references (leaves 69-73).; ix, 73 leaves, bound ill. 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20567 2007-01-01T00:00:00Z Liu, Xiaojiang Multi-level low energy adaptive clustering hierarchy (ML-LEACH) : a routing solution for periodic data sensing in large-area wireless sensor network http://hdl.handle.net/10125/20566 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references (leaves 66-67).; viii, 67 leaves, bound ill. (some col.) 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20566 2007-01-01T00:00:00Z Huang, Bo Compact doppler radar system for heart rate detection http://hdl.handle.net/10125/20565 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references (leaves 59-62).; x, 62 leaves, bound 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20565 2007-01-01T00:00:00Z Yamada, Shuhei The expected value for the probability of an undetected error using a linear code over an unknown binary symmetric channel http://hdl.handle.net/10125/20564 Thesis (M.S.)--University of Hawaii at Manoa, 2007.; Includes bibliographical references (leaves 50-51).; vii, 51 leaves, bound ill. 29 cm Mon, 01 Jan 2007 00:00:00 GMT http://hdl.handle.net/10125/20564 2007-01-01T00:00:00Z Perry, Patrick Detection of heatbeats in wireless signal http://hdl.handle.net/10125/20563 Thesis (M.S.)--University of Hawaii at Manoa, 2006.; Includes bibliographical references (leaves 78-82).; xiii, 82 leaves, bound ill. 29 cm Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10125/20563 2006-01-01T00:00:00Z Zhou, Qin, 1980 Efficient placement schemes to fully utilize peer upstream bandwidth http://hdl.handle.net/10125/20562 Thesis (M.S.)--University of Hawaii at Manoa, 2006.; Includes bibliographical references (leaves 61-63).; ix, 63 leaves, bound ill. 29 cm Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10125/20562 2006-01-01T00:00:00Z Zeng, Hui min CMOS IC implementation of heart rate detection hardware http://hdl.handle.net/10125/20561 Thesis (M.S.)--University of Hawaii at Manoa, 2006.; Includes bibliographical references (leaves 92-96).; 111 leaves, bound ill. (some col.) 29 cm Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10125/20561 2006-01-01T00:00:00Z Wang, Xiaoyue, 1978 Frequency resolved cell sizes using optical coherence tomography http://hdl.handle.net/10125/20560 Thesis (M.S.)--University of Hawaii at Manoa, 2006.; Includes bibliographical references (leaves 50-51).; xi, 51 leaves, bound ill. 29 cm Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10125/20560 2006-01-01T00:00:00Z Goya, Jaren M (Jaren Minoru) Optimal signaling for MIMO interference networks http://hdl.handle.net/10125/20559 Thesis (M.S.)--University of Hawaii at Manoa, 2006.; Includes bibliographical references (leaves 40-42).; viii, 42 leaves, bound ill. 29 cm Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10125/20559 2006-01-01T00:00:00Z Song, Yang