Open Access. Powered by Scholars. Published by Universities.®

Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

PDF

Selected Works

Data

Discipline
Institution
Publication Year
Publication

Articles 1 - 30 of 64

Full-Text Articles in Social and Behavioral Sciences

Submitting Data To The Institutional Repository, Denise I. O'Shea May 2019

Submitting Data To The Institutional Repository, Denise I. O'Shea

Denise O'Shea

Article that describes the submission process for scholarly data within the Montclair State University Institutional Repository.


Hip-Hop Librarianship For Scholarly Communication: An Approach To Introducing Topics, Arthur J. Boston Jan 2019

Hip-Hop Librarianship For Scholarly Communication: An Approach To Introducing Topics, Arthur J. Boston

Arthur J. Boston

Hip-Hop music, business, distribution, and culture exhibit highly-comparable trends in the scholarly communication and publication industry. This article discusses Hip-Hop artists and research authors as content creators, each operating within marketplaces still adjusting to digital, online connectivity. These discussions are intended for classroom use, where students may access their existing knowledge framework of popular media and apply it to a new understanding of the scholarly communication environment. Research instructors and librarians may discover new perspectives to familiar issues through conversations with students engaging with this material in a novel way.


Nsuworks Annual Report 2015-2016, Michele Gibney Oct 2017

Nsuworks Annual Report 2015-2016, Michele Gibney

Michele Gibney

In 2014 Nova Southeastern University celebrated its 50th Anniversary. In conjunction with the anniversary, the NSU Libraries determined a need to preserve the past, present and future of the university by creating a campus wide repository for all scholarship, creative work, and historical materials produced by the university. NSUWorks is a part of the NSU Libraries’ contribution to the university’s ongoing growth and success as an internationally recognized research institution. NSUWorks was officially launched at the Dean’s Meeting on November 2014, and reached its two year anniversary at the end of February 2016. The NSUWorks Annual Report covers the period …


Getting More From Libqual+ Data: Using Open Source Tools For Data Analysis And Visualization, Julie Miller, Franny Gaede, Andrew Welp, Laura Menard Sep 2017

Getting More From Libqual+ Data: Using Open Source Tools For Data Analysis And Visualization, Julie Miller, Franny Gaede, Andrew Welp, Laura Menard

Julie L. Miller

No abstract provided.


Transcending Institutions And Borders: 21st Century Digital Scholarship At K-State, Rebel Cummings-Sauls, Rachel Miles, Ryan Otto, Charlene N. Simser Mar 2017

Transcending Institutions And Borders: 21st Century Digital Scholarship At K-State, Rebel Cummings-Sauls, Rachel Miles, Ryan Otto, Charlene N. Simser

Rebel Cummings-Sauls

Digital scholarship of the 21st century transcends institutions and borders with its freedom from print and physical locations. This case study reviews aspects of establishing a sustainable digital scholarship center, supporting open access through the institutional repository (K-State Research Exchange - K-REx) and an open access publishing platform (New Prairie Press – NPP) along with other outreach efforts. The Center for the Advancement of Digital Scholarship (CADS) at K-State Libraries serves our campus community, but digital scholarship extends K-State's impact far beyond Manhattan, Kansas. Highlighting the scholarship at our campus is only one small piece of the landscape. Collaboration on …


Social Explorer, Michael Hughes Mar 2017

Social Explorer, Michael Hughes

Michael J. Hughes

Social Explorer is a mapping and data visualization program that creates custom maps, reports, and presentations from a wide array of survey sources, including the U.S. census, the American Community Survey, FBI Uniform Crime Reports, and some international sources such as the World Bank’s development indicators. Though most of its underlying data are published free of charge by nonprofit and government agencies, Social Explorer adds interpretative value by turning complex data into visual abstractions that aid comprehension. Furthermore, Explorer’s presentation and report options help users to compare and contrast data or put them into sociohistorical context, and all through an …


Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers Aug 2016

Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers

John Copeland Nagle

This study was commissioned by the Hawkesbury-Nepean (HNCMA), Sydney Metropolitan (SMCMA) and Southern Rivers (SRCMA) Catchment Management Authorities and undertaken by the University of Wollongong to collate existing data and to provide a preliminary assessment of the potential impacts of coal seam gas (CSG) and coal mining activities on environmental assets within the three CMA regions, where environmental assets were defined under three broad themes; water, land and biodiversity. This study formed part of the Australian Federal Government’s Department of Sustainability, Environment, Water, Population and Communities (SEWPaC) Bioregional Assessment initiative within regions potentially affected by CSG and coal mining activities. …


Algo-Ritmo: More-Than-Human Performative Acts And The Racializing Assemblages Of Algorithmic Architectures, Ezekiel J. Dixon-Román Dec 2015

Algo-Ritmo: More-Than-Human Performative Acts And The Racializing Assemblages Of Algorithmic Architectures, Ezekiel J. Dixon-Román

Ezekiel J Dixon-Román

What happens when more-than-human digital acts tell us something about ourselves? This article examines the ways in which the algorithms of data analytics function in relation to other ontologies and assemblages and how they are shaping and forming our lives. Beginning by critically questioning the ontology of data, data are argued to be an assemblage that is materially and discursively produced from a multiplicity of apparatuses including sociopolitical relations of power and “difference.” The concept of algo-ritmo—that is, the repetition of data with alterity—is introduced as a way of understanding how the performative acts of the “soft(ware) thinking” of algorithms …


Conversion Of Australian Food Composition Data From Ausnut1999 To 2007 In The Clinical Trial Context, Elizabeth P. Neale, Yasmine C. Probst, Rebecca Thorne, Qingsheng Zhang, Jane E. O'Shea, Marijka J. Batterham, Linda C. Tapsell Nov 2015

Conversion Of Australian Food Composition Data From Ausnut1999 To 2007 In The Clinical Trial Context, Elizabeth P. Neale, Yasmine C. Probst, Rebecca Thorne, Qingsheng Zhang, Jane E. O'Shea, Marijka J. Batterham, Linda C. Tapsell

Dr Marijka Batterham

An Australian food composition database, AUSNUT1999, does not include long chain omega-3 polyunsaturated fatty acid (LC omega-3 PUFA) data. Measurement of the fatty acid content of diets initially analysed using AUSNUT1999 requires conversion to AUSNUT2007, an updated database inclusive of LC omega-3 PUFA. The aim of this study was to convert clinical trial dietary data from AUSNUT1999 to AUSNUT2007 and measure LC omega-3 PUFA intake. Clinical trial diet history (DH) data was converted from AUSNUT1999 to 2007 using a staged approach. Macronutrient intake from AUSNUT1999 and 2007 were calculated and compared via paired t-tests and Wilcoxon Signed Ranks tests. Mean …


Addressing The Deficiencies In The Evidence-Base For Primary Practice In Regional Australia - Sentinel Practices Data Sourcing (Spds) Project: A Pilot Study, Abhijeet Ghosh, Karen E. Charlton, Lisa Girdo, Marijka J. Batterham, Keith Mcdonald Nov 2015

Addressing The Deficiencies In The Evidence-Base For Primary Practice In Regional Australia - Sentinel Practices Data Sourcing (Spds) Project: A Pilot Study, Abhijeet Ghosh, Karen E. Charlton, Lisa Girdo, Marijka J. Batterham, Keith Mcdonald

Dr Marijka Batterham

Background Chronic disease risk on a population level can be quantified through health surveys, either continuous or periodic. To date, information gathered from primary care interactions, using sentinel sites, has not been investigated as a potentially valuable surveillance system in Australia. Methods A pilot study was conducted in a single General Practice in a regional area of New South Wales, Australia to assess the feasibility of accessing data obtained through a computerised chronic disease management program that has been designed for desktop application (Pen Computer Systems (PCS) Clinical Audit Tool: ™ PCS CAT). Collated patient data included information on chronic …


Tour-Based Travel Mode Choice Estimation Based On Data Mining And Fuzzy Techniques, Nagesh Shukla, Jun Ma, Rohan Wickramasuriya, Nam N. Huynh, Pascal Perez Sep 2015

Tour-Based Travel Mode Choice Estimation Based On Data Mining And Fuzzy Techniques, Nagesh Shukla, Jun Ma, Rohan Wickramasuriya, Nam N. Huynh, Pascal Perez

Nagesh Shukla

No abstract provided.


Nsuworks Annual Report 2014-2015, Michele Gibney Sep 2015

Nsuworks Annual Report 2014-2015, Michele Gibney

Michele Gibney

In 2014 Nova Southeastern University celebrated its 50th. In conjunction with the anniversary, the NSU Libraries determined a need to preserve the past, present and future of the university by creating a campus wide repository for all scholarship, creative work, and historical materials produced by the university. NSUWorks is a part of the NSU Libraries’ contribution to the university’s ongoing growth and success as an internationally recognized research institution. NSUWorks was launched at the Dean’s Meeting on November 2014, and reached its one year anniversary at the end of February 2015. The NSUWorks Annual Report covers the period of February …


Aspiring To Excellence: Maximising Data To Sustain, Shift And Reshape A Library For The Future, Margie H. Jantti May 2015

Aspiring To Excellence: Maximising Data To Sustain, Shift And Reshape A Library For The Future, Margie H. Jantti

Margie Jantti

Perhaps more than ever before, libraries face the challenge of excelling during uncertain times. As library leaders, we have a responsibility to ensure our libraries are reputed as relevant, visible, valued and contemporary. It is imperative that we seek out new methods for maximizing the data that we are invested in and make it more readily accessible and comprehensible to key stakeholders: the senior leadership teams of the library and those of the institution. Yet where does the persuasive evidence lay to demonstrate outcomes aligned to the institution's aims? It is unlikely that library data on its own will be …


Finding Government Data On The Environment.Pdf, Ann Marshall Apr 2015

Finding Government Data On The Environment.Pdf, Ann Marshall

Ann Marshall

No abstract provided.


Error Correlation Between Co2 And Co As Constraint For Co2 Flux Inversions Using Satellite Data, H Wang, D J. Jacob, M Kopacz, D B. A Jones, P Suntharalingam, J A. Fisher, R Nassar, S Pawson, J E. Nielsen Feb 2015

Error Correlation Between Co2 And Co As Constraint For Co2 Flux Inversions Using Satellite Data, H Wang, D J. Jacob, M Kopacz, D B. A Jones, P Suntharalingam, J A. Fisher, R Nassar, S Pawson, J E. Nielsen

Jenny A Fisher

Inverse modeling of CO2 satellite observations to better quantify carbon surface fluxes requires a chemical transport model (CTM) to relate the fluxes to the observed column concentrations. CTM transport error is a major source of uncertainty. We show that its effect can be reduced by using CO satellite observations as additional constraint in a joint CO2-CO inversion. CO is measured from space with high precision, is strongly correlated with CO2, and is more sensitive than CO2 to CTM transport errors on synoptic and smaller scales. Exploiting this constraint requires statistics for the CTM transport error correlation between CO2 and CO, …


Using Assessment To Leverage Collaboration With The Campus Writing Center, Heidi Gauder, Hector Escobar Feb 2015

Using Assessment To Leverage Collaboration With The Campus Writing Center, Heidi Gauder, Hector Escobar

Hector Escobar

Purpose

Like many academic libraries, the University of Dayton’s Roesch Library houses a writing center. Currently located on the Library’s 2nd floor, it will soon move and become integrated with the library’s reference service. Since the writing center operates independently from the library (e.g., it is staffed by students and reports to different campus administrators), the library reference team, comprised of tenure-line faculty librarians, wanted to better understand writing center services. Given that research and writing are often intertwined, the library was particularly interested in learning how the writing center addressed the evaluation, integration and attribution of sources, tasks similar …


Using Assessment To Leverage Collaboration With The Campus Writing Center, Heidi Gauder, Hector Escobar Jan 2015

Using Assessment To Leverage Collaboration With The Campus Writing Center, Heidi Gauder, Hector Escobar

Heidi Gauder

Purpose Like many academic libraries, the University of Dayton’s Roesch Library houses a writing center. Currently located on the Library’s 2nd floor, it will soon move and become integrated with the library’s reference service. Since the writing center operates independently from the library (e.g., it is staffed by students and reports to different campus administrators), the library reference team, comprised of tenure-line faculty librarians, wanted to better understand writing center services. Given that research and writing are often intertwined, the library was particularly interested in learning how the writing center addressed the evaluation, integration and attribution of sources, tasks similar …


A Comparative Analysis Of Multichannel Data Acquisition Systems For Quality Assurance In External Beam Radiation Therapy, Iolanda Fuduli, Claudiu Porumb, Anthony Espinoza, Abdullah Aldosari, Martin Carolan, Michael Lf Lerch, Peter E. Metcalfe, Anatoly Rosenfeld, Marco Petasecca Jan 2015

A Comparative Analysis Of Multichannel Data Acquisition Systems For Quality Assurance In External Beam Radiation Therapy, Iolanda Fuduli, Claudiu Porumb, Anthony Espinoza, Abdullah Aldosari, Martin Carolan, Michael Lf Lerch, Peter E. Metcalfe, Anatoly Rosenfeld, Marco Petasecca

Anthony A Espinoza Mr

The paper presents a comparative study performed by the Centre of Medical Radiation Physics (CMRP) on three multichannel Data Acquisition Systems (DAQ) based on different analogue front-ends to suit a wide range of radiotherapy applications. The three front-ends are: a charge-to-frequency converter developed by INFN Torino, an electrometer and a charge-to-digital converter (both commercial devices from Texas Instruments). For the first two (named DAQ A and B), the CMRP has designed the read-out systems whilst the third one (DAQ C) comes with its own evaluation board. For the purpose of the characterization DAQ A and DAQ B have been equipped …


Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers Aug 2014

Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers

Samuel K Marx

This study was commissioned by the Hawkesbury-Nepean (HNCMA), Sydney Metropolitan (SMCMA) and Southern Rivers (SRCMA) Catchment Management Authorities and undertaken by the University of Wollongong to collate existing data and to provide a preliminary assessment of the potential impacts of coal seam gas (CSG) and coal mining activities on environmental assets within the three CMA regions, where environmental assets were defined under three broad themes; water, land and biodiversity. This study formed part of the Australian Federal Government’s Department of Sustainability, Environment, Water, Population and Communities (SEWPaC) Bioregional Assessment initiative within regions potentially affected by CSG and coal mining activities. …


Persona Categories: Highly Sought Places For Aussies To Live, Lachlan Hastings, Katina Michael May 2014

Persona Categories: Highly Sought Places For Aussies To Live, Lachlan Hastings, Katina Michael

Associate Professor Katina Michael

The site has been touted as potentially useful to retailers trying to determine where to locate future outlets.

However, Australian Privacy Foundation vice-chair Katina Michael said companies applying profiles could get it dramatically wrong or right.

Michael said that consumers had a choice to make in light of the "big data" trend, which often mischaracterised people.

"We can continue to believe the rhetoric that says: "We are doing no harm to individuals, it is hardly tracking when profiling small neighbourhoods"... or we can begin to demand an end to the on-selling of personal information,"she said.


Determining Data Information Literacy Needs: A Study Of Students And Research Faculty, Jake R. Carlson, Michael Fosmire, Chris Miller, Megan R. Sapp Nelson Apr 2014

Determining Data Information Literacy Needs: A Study Of Students And Research Faculty, Jake R. Carlson, Michael Fosmire, Chris Miller, Megan R. Sapp Nelson

Michael Fosmire

Researchers increasingly need to integrate the disposition, management and curation of their data into their current workflows. However, it is not yet clear to what extent faculty and students are sufficiently prepared to take on these responsibilities. This paper articulates the need for a data information literacy program (DIL) to prepare students to engage in such an “e-research” environment. Assessments of faculty interviews and student performance in a geoinformatics course provide complementary sources of information, which are then filtered through the perspective of ACRL’s information literacy competency standards to produce a draft set of outcomes for a data information literacy …


Are Low-Skill Public Sector Workers Really Overpaid? A Quasi-Differenced Panel Data Analysis, Peter Siminski Feb 2014

Are Low-Skill Public Sector Workers Really Overpaid? A Quasi-Differenced Panel Data Analysis, Peter Siminski

Peter Siminski

Public–private sectoral wage differentials have been studied extensively using quantile regression techniques. These typically find large public sector premiums at the bottom of the wage distribution. This may imply that low skill workers are ‘overpaid’, prompting concerns over efficiency. We note several other potential explanations for this result and explicitly test whether the premium varies with skill, using Australian data. We use a quasi-differenced Generalized Method of Moments (GMM) panel data model which has not been previously applied to this topic, internationally. Unlike other available methods, this technique identifies sectoral differences in returns to unobserved skill. It also facilitates a …


A History Of Financial Regulation In The Usa From The Beginning Until Today: 1789 To 2011, Gary Richardson Dec 2013

A History Of Financial Regulation In The Usa From The Beginning Until Today: 1789 To 2011, Gary Richardson

Gary Richardson

No abstract provided.


Opportunities And Challenges Of Data Publication: A Case Study From Purdue, David Scherer, Lisa Zilinski, Courtney E. Matthews Nov 2013

Opportunities And Challenges Of Data Publication: A Case Study From Purdue, David Scherer, Lisa Zilinski, Courtney E. Matthews

Lisa Zilinski

Beginning in 2011, there have been several policy changes directly affecting the management, preservation, and accessibility of publically-funded research and resulting research data in the United States. In January 18, 2011 the National Science Foundation (NSF) required data management plans to be submitted with all grant proposals. On February 22, 2013, the Office of Science and Technology Policy of the President of the United States extended a similar requirement to all federal agencies who have a research and development budget of more than $100 million. These requirements illustrate the need for further coordination and management of data as scholarship and …


Conversion Of Australian Food Composition Data From Ausnut1999 To 2007 In The Clinical Trial Context, Elizabeth P. Neale, Yasmine C. Probst, Rebecca Thorne, Qingsheng Zhang, Jane E. O'Shea, Marijka J. Batterham, Linda C. Tapsell Aug 2013

Conversion Of Australian Food Composition Data From Ausnut1999 To 2007 In The Clinical Trial Context, Elizabeth P. Neale, Yasmine C. Probst, Rebecca Thorne, Qingsheng Zhang, Jane E. O'Shea, Marijka J. Batterham, Linda C. Tapsell

Qingsheng Zhang

An Australian food composition database, AUSNUT1999, does not include long chain omega-3 polyunsaturated fatty acid (LC omega-3 PUFA) data. Measurement of the fatty acid content of diets initially analysed using AUSNUT1999 requires conversion to AUSNUT2007, an updated database inclusive of LC omega-3 PUFA. The aim of this study was to convert clinical trial dietary data from AUSNUT1999 to AUSNUT2007 and measure LC omega-3 PUFA intake. Clinical trial diet history (DH) data was converted from AUSNUT1999 to 2007 using a staged approach. Macronutrient intake from AUSNUT1999 and 2007 were calculated and compared via paired t-tests and Wilcoxon Signed Ranks tests. Mean …


Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers Jul 2013

Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers

Solomon Buckman Dr.

This study was commissioned by the Hawkesbury-Nepean (HNCMA), Sydney Metropolitan (SMCMA) and Southern Rivers (SRCMA) Catchment Management Authorities and undertaken by the University of Wollongong to collate existing data and to provide a preliminary assessment of the potential impacts of coal seam gas (CSG) and coal mining activities on environmental assets within the three CMA regions, where environmental assets were defined under three broad themes; water, land and biodiversity. This study formed part of the Australian Federal Government’s Department of Sustainability, Environment, Water, Population and Communities (SEWPaC) Bioregional Assessment initiative within regions potentially affected by CSG and coal mining activities. …


Data Driven Encoding Of Structures And Link Predictions In Large Xml Document Collections, M Hagenbuchner, A C. Tsoi, M Kc, Shujia Zhang Jul 2013

Data Driven Encoding Of Structures And Link Predictions In Large Xml Document Collections, M Hagenbuchner, A C. Tsoi, M Kc, Shujia Zhang

Ah Chung Tsoi

In recent years there have been some significant research towards the ability of processing related data, particularly the relatedness among atomic elements in a structure with those in another structure. A number of approaches have been developed with various degrees of success. This chapter provides an overview of machine learning approaches for the encoding of related atomic elements in one structure with those in other structures. The chapter briefly reviews a number of unsupervised approaches for such data structures which can be used for solving generic classification, regression, and clustering problems. We will apply this approach to a particularly interesting …


The Purdue University Research Repository (Purr): Providing Institutional Data Services With A Virtual Research Environment, Data Publication, And Archiving, Courtney E. Matthews, Michael Witt Jul 2013

The Purdue University Research Repository (Purr): Providing Institutional Data Services With A Virtual Research Environment, Data Publication, And Archiving, Courtney E. Matthews, Michael Witt

Courtney E Matthews

The Purdue University Research Repository: Providing Institutional Data Services With a Virtual Research Environment, Data Publication and Archiving. Workshop: Institutional Repositories Dealing with Research Data, hosted by the DCC, IASSIST, and COAR. Open Repositories 2013, Charlottetown, Prince Edward Island, Canada.


Very High Data Rate Mb-Ofdm Uwb Systems With Transmit Diversity Techniques, Ngoc Phuc Le, Le Chung Tran, Farzad Safaei Jun 2013

Very High Data Rate Mb-Ofdm Uwb Systems With Transmit Diversity Techniques, Ngoc Phuc Le, Le Chung Tran, Farzad Safaei

Professor Farzad Safaei

In this paper, the application of space time block codes in a very high data rate multiband-OFDM ultra-wideband (VHDR MB-OFDM UWB) system, where the Modified Dual Carrier Modulation (MDCM) scheme and Low Density Parity Check codes are deployed, is investigated. First, we present a new table-based mapping approach and derive soft-demapping expressions for the MDCM scheme. We then propose a space-time-frequency coded VHDR MB-OFDM UWB system by incorporating space time block codes into the conventional VHDR MB-OFDM UWB system. Numerical simulations of the system supporting a data rate of 1Gbps over the IEEE 802.15.3a channel models are implemented. The simulation …


Double Space-Time Transmit Diversity For Very High Data Rate Mb-Ofdm Uwb Systems, Ngoc P. Le, Le C. Tran, Farzad Safaei Jun 2013

Double Space-Time Transmit Diversity For Very High Data Rate Mb-Ofdm Uwb Systems, Ngoc P. Le, Le C. Tran, Farzad Safaei

Professor Farzad Safaei

In this paper, we investigate a multiband-orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) system with very high data rates (VHDR) of several gigabits per second (Gbps). We propose a DSTTD-based VHDR MB-OFDM UWB system by incorporating a double space-time transmit diversity (DSTTD) scheme into the conventional MB-OFDM UWB system. At the receiver, an efficient soft-demapper that takes into consideration the noise enhancement due to a zero-forcing equalization is developed. Numerical simulations of the proposed system at a very high data rate of 2.Gbps over the IEEE 802.15.3a channel models are implemented. The simulation results show that this system could achieve …