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2009

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Articles 1381 - 1410 of 26424

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Ultracapacitor Frequency Analysis And Its Equivalent Circuit Modeling, Xiaomeng Li, Mariesa Crow Dec 2009

Ultracapacitor Frequency Analysis And Its Equivalent Circuit Modeling, Xiaomeng Li, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

Energy storage system is becoming more and more important in power electronics device. the Ultracapacitor or so-called electrochemical capacitor is one of the most popular choices for the energy storage system because of its distinct characters. in the application UCAP's transient behavior need to be studied for design purpose. Usually, these transient characters are not shown in the product data sheet. in this paper UCAP frequency analysis is performed, and based on the test data the equivalent model of the UCAP is built. the fitting result shows that using multi-level ladder circuit can perfectly fit the UCAP transient characters.

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Layered Frequency-Domain Equalization For Single Carrier Mimo Systems With Multiple Carrier Frequency Offsets, Jian Zhang, Yahong Rosa Zheng Dec 2009

Layered Frequency-Domain Equalization For Single Carrier Mimo Systems With Multiple Carrier Frequency Offsets, Jian Zhang, Yahong Rosa Zheng

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, carrier frequency offsets (CFOs) are considered in a layered frequency-domain equalization (LFDE) architecture for a single carrier (SC) broadband wireless multiple-input multiple-output (MIMO) system. at each layer of detection, a group of best data streams are selected to be equalized and reliably detected via removing the phase and amplitude distortion caused by the multiple CFOs. the estimated phase rotations and amplitude scalars are required to be compensated to the detected data streams in order to reconstruct the interference signals which are canceled out from the received signals. Instead of direct estimation of CFOs, our algorithm is to …

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Unit Commitment With Vehicle-To-Grid Using Particle Swarm Optimization, Ahmed Yousuf Saber, Ganesh K. Venayagamoorthy Dec 2009

Unit Commitment With Vehicle-To-Grid Using Particle Swarm Optimization, Ahmed Yousuf Saber, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

Vehicle-to-Grid (V2G) technology has drawn great interest in the recent years. Success of the V2G research depends on efficient scheduling of grid able vehicles in limited parking lots. V2G can reduce dependencies on small expensive units in the existing power systems as energy storage that can decrease running costs. It can efficiently manage load fluctuation, peak load; however, it increases spinning reserves and reliability. as number of grid able vehicles in V2G is much higher than small units of existing systems, unit commitment (UC) with V2G is more complex than basic UC for thermal units. Particle swarm optimization (PSO) is …

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Equivalent Mixed-Mode Characteristic Impedances For Differential Signal Vias, Siming Pan, Jun Fan Dec 2009

Equivalent Mixed-Mode Characteristic Impedances For Differential Signal Vias, Siming Pan, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

Differential signal via structures in multi-layer printed circuit boards (PCBs) and packages are studied using an equivalent coupled multi-conductor transmission-line model. Thus, easy-to-understand transmission-line concepts, such as mixed-mode characteristic impedances and propagation constants, can be used to characterize the performance of differential signal via structures in a signal path. the closed-form expressions of per-unit-length parameters in the equivalent coupled multi-conductor transmission-line model are derived based on a physics-Based via circuit model with parallel-plane impedances and via-plate capacitances. Mode conversions are discussed for different via structures. Effects of geometrical parameters on equivalent differential via impedances are studied in the paper as …

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Investigation Of Crosstalk Among Vias, Songping Wu, Jun Fan Dec 2009

Investigation Of Crosstalk Among Vias, Songping Wu, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

Crosstalk among vias is a critical problem in highspeed digital circuits, deteriorating signal quality and increasing jitter, especially when circuit density is high. Underlying mechanism of crosstalk among vias is investigated in this paper. using a physics-Based equivalent circuit model, crosstalk as a function of various geometrical parameters, including parallel plane pair thickness, layer count in printed circuit board (PCB) stack up, ground via patterns, and parallel plane pair dimensions, has been investigated. a multi-step crosstalk evaluation procedure is proposed based on the study for PCB layout-design verifications. © 2009 IEEE.

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A Real-Time Implementation Of A Pbil Based Stabilizing Controller For Synchronous Generator, Komla A. Folly, Ganesh K. Venayagamoorthy Dec 2009

A Real-Time Implementation Of A Pbil Based Stabilizing Controller For Synchronous Generator, Komla A. Folly, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents the optimal tuning of power system stabilizer parameters using a newly introduced evolutionary algorithm called Population based Incremental Learning (PBIL). to robustly stabilize the system, an objective function that minimizes the infinity norm of the closed-loop system is introduced such that the parameters of a fixed structure PSS are optimally tuned, and the controller stabilizes a pre-specified set of system models. the PBIL-PSS is compared with the Conventional PSS (CPSS). the simulation results presented in this paper show that the proposed PBIL-PSS is more effective than the Conventional PSS in damping the low frequency oscillations. the performance …

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On The Statistical Estimation Of Rényi Entropies, Elia Liitiäinen, Amaury Lendasse, Francesco Corona Dec 2009

On The Statistical Estimation Of Rényi Entropies, Elia Liitiäinen, Amaury Lendasse, Francesco Corona

Engineering Management and Systems Engineering Faculty Research & Creative Works

Estimating Entropies is Important in Many Fields Including Statistical Physics, Machine Learning and Statistics. While the Shannon Logarithmic Entropy is the Most Fundamental, Other Rényi Entropies Are Also of Importance. in This Paper, We Derive a Bias Corrected Estimator for a Subset of Rényi Entropies. the Advantage of the Estimator is Demonstrated Via Theoretical and Experimental Considerations. © 2009 IEEE.

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A Study To Identify The Components Of Professional Learning Communities That Correlate With Teacher Efficacy, Satisfaction, And Morale, Shirley Robinette Weathers Dec 2009

A Study To Identify The Components Of Professional Learning Communities That Correlate With Teacher Efficacy, Satisfaction, And Morale, Shirley Robinette Weathers

College of Graduate Studies: Theses & Dissertations

This study was conducted to provide information concerning the attributes of professional learning communities, i.e. supportive leadership, shared values and vision, collective learning and application, supportive conditions-relational, supportive conditions-structural, and shared personal practice and their correlation with teacher efficacy, satisfaction, and morale. These six characteristics of learning communities were studied to ascertain the association of those characteristics or attributes with teacher measures. The underlying premise for the study was that teachers who feel supported in their classroom practice are more committed and effective than those who do not. When teachers have a strong sense of efficacy, they tend to adopt …

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Counselor Implementation Of The Asca National Model At Title I Elementary Schools, Aronica Gloster Dec 2009

Counselor Implementation Of The Asca National Model At Title I Elementary Schools, Aronica Gloster

College of Graduate Studies: Theses & Dissertations

Bridging the achievement gap between students in poverty and their more advantaged peers has been a key focus of contemporary reform efforts. Principals have been encouraged to utilize distributed leadership principles to facilitate school improvement. Research has indicated that counselors have been absent from school reform initiatives. Moreover, a dearth of literature exists regarding the activities of counselors with students who live in poverty. The American School Counselor Association (ASCA) asserted that counselors can play in important role as facilitators of school reform by utilizing the ASCA National Model as a foundation for school counseling programs. A study was conducted …

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Barriers To High School Student Academic Success, Judy S. Sapp Dec 2009

Barriers To High School Student Academic Success, Judy S. Sapp

College of Graduate Studies: Theses & Dissertations

Since the passage of the federal legislation known as No Child Left Behind, school districts are under increasing pressure to decrease high school dropout rates and to increase high school graduation rates. There is a critical need for schools to develop and implement programs designed to maximize academic success for all high school students. The purpose of this present research was to investigate the perceptions of high school teachers and high school students about barriers to high school student academic success. For purposes of this study, high school academic success is defined as the completion of all high school diploma …

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(E,2e) Study Of Two-Center Interference Effects In The Ionization Of N₂, Leigh R. Hargreaves, Christopher J. Colyer, Mark A. Stevenson, B. Lohmann, Ola A. Al-Hagan, Don H. Madison, Chuangang Ning Dec 2009

(E,2e) Study Of Two-Center Interference Effects In The Ionization Of N₂, Leigh R. Hargreaves, Christopher J. Colyer, Mark A. Stevenson, B. Lohmann, Ola A. Al-Hagan, Don H. Madison, Chuangang Ning

Physics Faculty Research & Creative Works

A number of previous studies have suggested the possibility of two-center interference effects in the single ionization of diatomic molecules such as H2 and N2. While interference effects have been successfully observed in the ionization of H2, to date evidence for interference in N2 ionization has yet to be conclusively demonstrated. This study presents triply differential cross sections for electron impact ionization of N2, measured using the (e,2e) technique. The data are probed for signatures of two-center interference effects. Evidence for interference manifesting in the cross sections is observed.

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Dit Independent , 1st.-31st. Of December, 2009, Dit:Students Union Dec 2009

Dit Independent , 1st.-31st. Of December, 2009, Dit:Students Union

DIT Student Union

No abstract provided.

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Developing An Assessment Model For Evaluating Software Tools In Education, Vedant Jain, Hong Sheng, Richard H. Hall, Mike (Michael) Gene Hilgers Dec 2009

Developing An Assessment Model For Evaluating Software Tools In Education, Vedant Jain, Hong Sheng, Richard H. Hall, Mike (Michael) Gene Hilgers

Business and Information Technology Faculty Research & Creative Works

This Paper Presents a Research Model to Evaluate the Usability of Computer-Mediated Learning Technology, User Acceptance of the Technology, and the Effect of the Technology on Learning Outcomes. We Also Introduce the Use of Innovative Research Techniques for the Evaluation, Including Eye Tracking and Think-Aloud Protocol. Think-Aloud Protocol Allows Us to Understand a User's State of Mind While He/she is Interacting with the System. Eye Tracking Also Provides Additional Insights into a User's Cognitive State While using the System. Both Qualitative and Quantitative Data Can Be Collected Following the Research Model, Thus Providing More In-Depth Understanding on the Effect of …

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Health Impacts Of Traffic Related Air Pollution, Amit U. Raysoni, Wen-Wahi Li Dec 2009

Health Impacts Of Traffic Related Air Pollution, Amit U. Raysoni, Wen-Wahi Li

School of Earth, Environmental, & Marine Sciences Faculty Publications

Ambient air pollution can be a serious cause of concern for any community. Anthropogenic ambient air pollutants can emanate from industries, traffic, geological sources and domestic heating and cooking. However, studies have shown that traffic related air pollution can have far more detrimental health effects than non-combustion sources. These adverse health effects are most profound in sensitive populations like the elderly and young children. The World Health Organization (WHO) attributes more than 300 million deaths every year to ambient air pollution. The WHO’s Air Quality Guidelines (AQG) and the United States Environment Protection Agency’s (USEPA) National Ambient Air Quality Standards …

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An Environment That Fosters Shared Leadership And The Effects On Engineering Education: An Analysis And Proposed Structure, Brian J. Galli, Ray Luechtefeld Dec 2009

An Environment That Fosters Shared Leadership And The Effects On Engineering Education: An Analysis And Proposed Structure, Brian J. Galli, Ray Luechtefeld

Engineering Management and Systems Engineering Faculty Research & Creative Works

Engineers must not only have design and technical skills, but they must also possess the ability to work in and lead teams, adopt and adapt to change, and act as leaders who can think in terms of the bigger picture. to develop these skills, engineering students must be actively involved in their education and trained to continually learn. Many engineering students have become accustomed to traditional forms of education, which can lead to passivity and dependence on faculty to tell them what to know and why they need to know it. Research in organizational behavior suggests a solution can lie …

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Event Coverage In Sparse Mobile Sensor Networks, Mark Snyder, Sriram Chellappan Dec 2009

Event Coverage In Sparse Mobile Sensor Networks, Mark Snyder, Sriram Chellappan

Computer Science Faculty Research & Creative Works

Autonomous mobile sensors are employed with ever-increasing frequency, in applications ranging from search and rescue, detection of forest fires, and battlefield surveillance. in this paper, we consider a representative surveillance problem wherein a sparse number of mobile sensors are expected to cover events of interest in a deployment field. Each event appears for a certain time and then disappears. Furthermore, the location of each event and its duration is unknown. in this paper, we design a sensor movement strategy based on efficient traversal in the network to fulfill two objectives: maximizing event detection and minimizing detection delay. Analysis and simulations …

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A System For Detecting Xml Similarity In Content And Structure Using Relational Database, Waraporn Viyanon, Sanjay Kumar Madria Dec 2009

A System For Detecting Xml Similarity In Content And Structure Using Relational Database, Waraporn Viyanon, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

In this paper, we describe a system incorporating an improved technique that detects the similarity of two XML documents based on content and structure similarity using keys. the technique consists of three major components: A subtree generator and validator, a key generator, and similarity components that compare content and structure of the XML documents. First, an XML document is stored in a relational database and extracted into small subtrees using leaf-node parents. the leaf-node parents are considered as a root of a subtree which is then recursively traversed bottom-up for matching. Second, a possible key(s) is identified in order to …

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Ultrasonic Pulse Velocity Tests On Compacted Soil, David M. Weidinger, Louis Ge, Richard Wesley Stephenson Dec 2009

Ultrasonic Pulse Velocity Tests On Compacted Soil, David M. Weidinger, Louis Ge, Richard Wesley Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In This Paper, Results of a Series of Ultrasonic Pulse Velocity Tests on Compacted Soil Were Presented and Discussed. Ultrasonic Pulse Velocity Tests Provide Compression and Shear Wave Velocity Information that Can Be Used in Calculating Dynamic Elastic Moduli Such as Young's Modulus and Shear Modulus. from the Test Results, Calculated Poisson's Ratio Shows a Linear Relation with the Water Content in Compacted Soil, Which Leads to a Linear Trend in Both P and S Wave Velocity Against Water Content. Furthermore, Presenting Plots in Bulk Density Versus Wave Velocity Gives a Clearer Trend Than Dry Density Versus Wave Velocity. © …

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Directed Coverage In Wireless Sensor Networks: Concept And Quality, Xiaole Bai, Lei Ding, Jin Teng, Sriram Chellappan, Changqing Xu, Dong Xuan Dec 2009

Directed Coverage In Wireless Sensor Networks: Concept And Quality, Xiaole Bai, Lei Ding, Jin Teng, Sriram Chellappan, Changqing Xu, Dong Xuan

Computer Science Faculty Research & Creative Works

In this paper, we introduce a new type of coverage for wireless sensor networks, called Directed Coverage (D-Coverage). Basically, D-Coverage is the coverage provided by a sensor network monitoring an area between two boundaries, through which the intruder attempts to penetrates the area. We also study how to measure the quality of D-Coverage. Our first evaluation approach is a projection-Based simple approach, while our second approach is a more comprehensive Markov chain-based approach. Our evaluation approaches can accurately evaluate the quality and provide good guidelines for sensor network deployment and run-time repair. ©2009 IEEE.

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A Global Defect Chemistry Model For P-Type Mixed Ionic And Electronic Conductors, Xiao Dong Zhou, Harlan U. Anderson Dec 2009

A Global Defect Chemistry Model For P-Type Mixed Ionic And Electronic Conductors, Xiao Dong Zhou, Harlan U. Anderson

Materials Science and Engineering Faculty Research & Creative Works

A global defect chemistry model is presented to relate the properties of a variety of p-type perovskite conductors, including chromites, manganites, and ferrites, which can be tailored as mixed ionic and electronic conductors (MIECs). It is found that oxygen nonstoichiometry in these p-type MIECs can be correlated using reaction constant for oxygen vacancy generation. the values of reaction constant for oxygen vacancy formation can be obtained by simulating the electronic conductivity as a function of oxygen activity and temperature with the existing global model that is based on the concept of localized electron holes. the global defect chemistry model allows …

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The Efficacy Of Karkadeh Tea In Controlling Post-Prandial Blood Glucose Levels, Adrian Paul Harrison, Ross Gordon Cooper, Moustafa Ahmed Suliman, Usama Alalami Dec 2009

The Efficacy Of Karkadeh Tea In Controlling Post-Prandial Blood Glucose Levels, Adrian Paul Harrison, Ross Gordon Cooper, Moustafa Ahmed Suliman, Usama Alalami

All Works

Problem statement: Increasing interest from the general public to use herbal remedies, exposes a considerable need to document ancient medical practices, as well as to investigate the efficacy of "ancient" compounds currently reputed to have medicinal benefits for such diseases as diabetes and obesity. Approach: In order to investigate the efficacy of "karkadeh" Roselle-Hibiscus sabdariffa tea as a means of reducing post-prandial blood glucose levels in human subjects, 10 g of dried karkadeh was brewed in 500 mL of water, allowed to infuse for 60 min and imbibed along with a high glycemic index food. Results: Data showed that in …

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On The Dual Basis For Solving Electromagnetic Surface Integral Equations, Mei Song Tong, Weng Cho Chew, Barry J. Rubin, Jason D. Morsey, Lijun Jiang Dec 2009

On The Dual Basis For Solving Electromagnetic Surface Integral Equations, Mei Song Tong, Weng Cho Chew, Barry J. Rubin, Jason D. Morsey, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

A powerful technique for solving electromagnetic (EM) surface integral equations (SIEs) for inhomogenous objects by the method of moments (MoM) involves the well-known RaoWiltonGlisson (RWG) basis function to represent the electric current and, for field orthogonality and numerical stability reasons, a variation of the RWG basis known as the ňx RWG basis (where ň is a unit normal vector at the object surface) to represent the magnetic current. Though this combination provides a numerically efficient and effective solution that has been demonstrated on a variety of structures, one cannot feel entirely comfortable because of the presence of fictitious magnetic current …

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Effect Of System Components On Electrical And Thermal Characteristics For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin Dec 2009

Effect Of System Components On Electrical And Thermal Characteristics For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, parameterized electrical-thermal co-analysis for power delivery networks (PDN) in 3D system integration is carried out. A 3D integrated system including glass-ceramic substrate, single and stacked dies, power delivery network, through-silicon vias (TSVs), controlled collapse chip connections (C4s), underfill material, and thermal interface material (TIM) is analyzed with several variable parameters. The analysis results show that temperature effects on DC IR drop can not be neglected. The TIM thermal conductivity, C4 density, stacking order of stacked dies, and voltage source location affect the final IR drop and hot spot temperature in the system. ©2009 IEEE.

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Electrical-Thermal Co-Analysis For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin Dec 2009

Electrical-Thermal Co-Analysis For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, an electrical-thermal co-analysis method for power delivery networks in 3D system integration is proposed. For electrical analysis, temperature-dependent electrical resistivity of conductors is taken into account. For thermal analysis, Joule heating effect due to the current flowing through conductors is considered. The proposed co-analysis method is carried out using Rgen and ChipJoule of IBM EIP Tool Suite. An example of 3D integration system including stacked chips, power delivery network, glass-ceramic substrate, through-silicon vias, controlled collapse chip connections (C4s), underfill material, and TIM is analyzed using the proposed method. The simulation results show that the temperature effect on …

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Empirical Likelihood In Missing Data Problems, Jing Qin, Biao Zhang, Denis H. Y. Leung Dec 2009

Empirical Likelihood In Missing Data Problems, Jing Qin, Biao Zhang, Denis H. Y. Leung

Research Collection School Of Economics

Missing data is a ubiquitous problem in medical and social sciences. It is well known that inferences based only on the complete data may not only lose efficiency, but may also lead to biased results if the data is not missing completely at random (MCAR). The inverse-probability weighting method proposed by Horvitz and Thompson (1952) is a popular alternative when the data is not MCAR. The Horvitz–Thompson method, however, is sensitive to the inverse weights and may suffer from loss of efficiency. In this paper, we propose a unified empirical likelihood approach to missing data problems and explore the use …

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Coherent Phrase Model For Efficient Image Near-Duplicate Retrieval, Yiqun Hu, Xiangang Cheng, Liang-Tien Chia, Xing Xie, Deepu Rajan, Ah-Hwee Tan Dec 2009

Coherent Phrase Model For Efficient Image Near-Duplicate Retrieval, Yiqun Hu, Xiangang Cheng, Liang-Tien Chia, Xing Xie, Deepu Rajan, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

This paper presents an efficient and effective solution for retrieving image near-duplicate (IND) from image database. We introduce the coherent phrase model which incorporates the coherency of local regions to reduce the quantization error of the bag-of-words (BoW) model. In this model, local regions are characterized by visual phrase of multiple descriptors instead of visual word of single descriptor. We propose two types of visual phrase to encode the coherency in feature and spatial domain, respectively. The proposed model reduces the number of false matches by using this coherency and generates sparse representations of images. Compared to other method, the …

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An Entity Sui Generis In The Wto: Taiwan's Wto Membership And Its Trade Law Regime, Han-Wei Liu Dec 2009

An Entity Sui Generis In The Wto: Taiwan's Wto Membership And Its Trade Law Regime, Han-Wei Liu

Research Collection Yong Pung How School Of Law

As one of the founding members of the General Agreement on Tariffs and Trade (GATT), Taiwan (the Republic of China or ROC) - the 17th largest economy, was granted accession to the World Trade Organization (WTO) in November 2001 after its observer status of eleven years. Taiwan, classified by most commentators as an "unrecognized state" or an "entity sui generis", has been excluded from most of the major international organizations. Taiwan's accession to the WTO, therefore, is considered to be an important breakthrough in diplomacy for the past decades. Notwithstanding its WTO membership, the Taiwanese Government has employed numerous trade …

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To Trust Or Not To Trust? Predicting Online Trusts Using Trust Antecedent Framework, Viet-An Nguyen, Ee Peng Lim, Jing Jiang, Aixin Sun Dec 2009

To Trust Or Not To Trust? Predicting Online Trusts Using Trust Antecedent Framework, Viet-An Nguyen, Ee Peng Lim, Jing Jiang, Aixin Sun

Research Collection School Of Computing and Information Systems

This paper analyzes the trustor and trustee factors that lead to inter-personal trust using a well studied Trust Antecedent framework in management science. To apply these factors to trust ranking problem in online rating systems, we derive features that correspond to each factor and develop different trust ranking models. The advantage of this approach is that features relevant to trust can be systematically derived so as to achieve good prediction accuracy. Through a series of experiments on real data from Epinions, we show that even a simple model using the derived features yields good accuracy and outperforms MoleTrust, a trust …

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Insights Into Malware Detection And Prevention On Mobile Phones, Qiang Yan, Yingjiu Li, Tieyan Li, Robert H. Deng Dec 2009

Insights Into Malware Detection And Prevention On Mobile Phones, Qiang Yan, Yingjiu Li, Tieyan Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

The malware threat for mobile phones is expected to increase with the functionality enhancement of mobile phones. This threat is exacerbated with the surge in population of smart phones instilled with stable Internet access which provides attractive targets for malware developers. Prior research on malware protection has focused on avoiding the negative impact of the functionality limitations of mobile phones to keep the performance cost within the limitations of mobile phones. Being different, this paper investigates the positive impact of these limitations on suppressing the development of mobile malware. We study the state-of-the-art mobile malware, as well as the progress …

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A New Approach For Anonymous Password Authentication, Yanjiang Yang, Jianying Zhou, Jian Weng, Feng Bao Dec 2009

A New Approach For Anonymous Password Authentication, Yanjiang Yang, Jianying Zhou, Jian Weng, Feng Bao

Research Collection School Of Computing and Information Systems

Anonymous password authentication reinforces password authentication with the protection of user privacy. Considering the increasing concern of individual privacy nowadays, anonymous password authentication represents a promising privacy-preserving authentication primitive. However, anonymous password authentication in the standard setting has several inherent weaknesses, making its practicality questionable. In this paper, we propose a new and efficient approach for anonymous password authentication. Our approach assumes a different setting where users do not register their passwords to the server; rather, they use passwords to protect their authentication credentials. We present a concrete scheme, and get over a number of challenges in securing password-protected credentials …

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