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University of Otago
(27 results)-
White Papers
A Software Framework for Application Development Using ZigBee Protocol
May 8, 2009, 12:00am PDT
The Information Science Discussion Paper Series authored by Bastin Tony Roy Savarimuthu, Morgan Bruce and Maryam Purvis from the Department of Information Science, University of Otago is a...
Provided by University of Otago
-
White Papers
Modelling The Dynamics Of Business Interaction
June 28, 2010, 12:00am PDT
Those companies are embedded in open boundary-less networks and have multiple direct and indirect relationships with a number of other organizations cannot be disputed. Indeed, this has been a...
Provided by University of Otago
-
White Papers
The Growth Delusion
August 24, 2009, 12:00am PDT
Concern for the environment and a move towards "Sustainable development" has assisted progress in a wide range of renewable energy technologies in recent years. The science suggests that a...
Provided by University of Otago
-
Whitepapers
A Strict Hierarchy of Dynamic Graphs for Shortest, Fastest, and Foremost Broadcast
October 11, 2012, 12:00am PDT
The notion of highly dynamic networks encompasses many real-world contexts. The need to categorize and understand them led the engineering community to design a variety of mobility models, based...
Provided by University of Otago
-
Whitepapers
How to Print a Secret
July 20, 2009, 12:00am PDT
The authors consider the problem of how to print a human-readable message, or image, on a piece of paper, while simultaneously preventing the participating printing agents or devices from learning...
Provided by University of Otago
-
Whitepapers
Regression Test Suite Prioritization Using System Models
December 10, 2010, 12:00am PST
During regression testing, a modified system is often retested using an existing test suite. Since the size of the test suite may be very large, testers are interested in detecting faults in the...
Provided by University of Otago
-
Whitepapers
Cooperative Location Verification for Vehicular Ad-Hoc Networks
May 24, 2012, 12:00am PDT
Vehicular Ad hoc NETworks (VANETs) have attracted much attention over the last few years. Localization and position information of vehicles is very significant in VANETs; this is a result of the...
Provided by University of Otago
-
Whitepapers
An Efficient QoS MAC for IEEE 802.11p Over Cognitive Multichannel Vehicular Networks
May 24, 2012, 12:00am PDT
One of the most challenging issues facing vehicular networks lies in the design of an efficient MAC protocol adaptable to different traffic scenarios (urban and suburban environments). While each...
Provided by University of Otago
-
Whitepapers
VIRTUS: A Resilient Location-Aware Video Unicast Scheme for Vehicular Networks
May 24, 2012, 12:00am PDT
Video streaming capabilities over Vehicular Ad Hoc NETworks (VANETs) are crucial to the development of interesting and valuable services. However, VANETs are a challenging environment to this kind...
Provided by University of Otago
-
Whitepapers
Aggregation-Based Discovery for Virtual Network Environments
May 24, 2012, 12:00am PDT
Resource discovery aims to assist the Virtual Network Provider (VNP) in selecting the best Infrastructure Provider (InP) which has the best matching resources, for a Virtual Network (VN) request....
Provided by University of Otago
-
Whitepapers
A Comparison of Interference Cartography Generation Techniques in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
Interference cartographs can be utilized to determine no-transmit zones and to set the interference-free transmit power for secondary users in cognitive radio networks. This paper provides a...
Provided by University of Otago
-
Whitepapers
Two-Level Energy-Based Supplier Selection Protocol for Mobile P2P 3D Streaming
May 24, 2012, 12:00am PDT
Due to the important developments in the area of wireless networks and mobile computing, P2P networks-based 3D streaming over thin mobile devices is starting to gain the interest of many research...
Provided by University of Otago
-
Whitepapers
Asymptotic Analysis of Outage Probability in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
The aggregate interference distribution in cognitive radio networks is studied in a rigorous analytical way using the popular Poisson point process model. While a number of results are available...
Provided by University of Otago
-
Whitepapers
Vehicular Movement Patterns: A Prediction-Based Route Discovery Technique for VANETs
May 24, 2012, 12:00am PDT
Applications for Vehicular Ad-hoc NETworks (VANETs) have been surfacing every day as with any new network architecture. One of the many challenges that have been addressed is the use of...
Provided by University of Otago
-
Whitepapers
Energy-Efficient Battery-Aware MAC Protocol for Wireless Sensor Networks
March 12, 2012, 12:00am PDT
Wireless sensor networks suffer from limited power resources. Therefore, managing the energy constraints and exploring new ways to minimize the power consumption during the operation of the nodes...
Provided by University of Otago
-
Whitepapers
A Security Architecture for Data Aggregation and Access Control in Smart Grids
November 10, 2011, 12:00am PST
The authors propose an integrated architecture for smart grids, that supports data aggregation and access control. Data can be aggregated by home area network, building area network and...
Provided by University of Otago
-
Whitepapers
Achieving Load Awareness in Position-Based Wireless Ad Hoc Routing
September 1, 2012, 12:00am PDT
Wireless ad hoc networks are collections of wireless nodes that are usually battery powered and communicate with each other using radio frequency without a fixed infrastructure or centralised...
Provided by University of Otago
-
Whitepapers
A Novel Collision Probability Based Adaptive Contention Windows Adjustment for QoS Fairness on Ad Hoc Wireless Networks
November 21, 2012, 12:00am PST
It is crucial to achieve Quality of Service (QoS) on IEEE802.11 in order to provide stable and reliable communication for real time and multimedia applications. Most of the recent QoS techniques...
Provided by University of Otago
-
Whitepapers
A Novel Cross Layer TCP Optimization Protocol Over Wireless Networks by Markov Decision Process
November 21, 2012, 12:00am PST
Transmission Control Protocol (TCP) is well-known for its poor performance over wireless networks. The main reason is the unstable condition of wireless networks. Previous attempts to improve TCP...
Provided by University of Otago
-
Whitepapers
Distributed Management of Energy-Efficient Lightpaths for Computational Grids
November 21, 2012, 12:00am PST
Information and Communication Technologies (ICTs) are contributing to a large amount of the global electricity consumption. Due to tremendous increase in the bandwidth demands and utilisation of...
Provided by University of Otago
-
Whitepapers
An Efficient Hybrid Adaptive Location-aided Gateway Advertisement and Discovery Protocol for Heterogeneous Wireless and Mobile Networks
October 27, 2009, 12:00am PDT
Recent advances in wireless communications and the availability of Heterogeneous Wireless and Mobile Networks (HWMNs) have enabled the development of interesting applications. The main objective...
Provided by University of Otago
-
Whitepapers
Towards a Hybrid Energy Efficient Multi-Tree-Based Optimized Routing Protocol for Wireless Networks
December 14, 2012, 12:00am PST
This paper considers the problem of designing power efficient routing with guaranteed delivery for sensor networks with unknown geographic locations. The authors propose HECTOR, a hybrid energy...
Provided by University of Otago
-
Whitepapers
QUATTRO: QoS-Capable Cross-Layer MAC Protocol for Wireless Sensor Networks
October 27, 2009, 12:00am PDT
As the Wireless Sensor Network (WSN) technology evolves towards higher transmission rates, it makes sense to start considering sensing and transmission of real-time information, such as audio and...
Provided by University of Otago
-
Whitepapers
A Lightweight Iterative Positioning Algorithm for Context-Aware Wireless Sensor Networks: Proof of Correctness
October 27, 2009, 12:00am PDT
In this paper, the authors propose an energy-efficient iterative positioning algorithm for Wireless Sensor Networks (WSNs). In the proposed algorithm, localization is achieved in two phases:...
Provided by University of Otago
-
White Papers
IO Tetris: Deep Storage Consolidation for the Cloud Via Fine-Grained Workload Analysis
May 16, 2011, 12:00am PDT
Intelligent workload consolidation in storage systems leads to better Return On Investment (ROI), in terms of more efficient use of data center resources, better Quality of Service (QoS), and...
Provided by University of Otago
-
White Papers
SAFEWEB: A Middleware for Securing Ruby-Based Web Applications
December 1, 2011, 12:00am PST
Web applications in many domains such as healthcare and finance must process sensitive data, while complying with legal policies regarding the release of different classes of data to different...
Provided by University of Otago
-
White Papers
Cloud Computing: The Emperor's New Clothes of IT
May 17, 2011, 12:00am PDT
Cloud computing has recently become a hot topic in IT circles. Organizations see it as an opportunity to reduce costs. Outsourcing the provision of data services has become an attractive option in...
Provided by University of Otago
-
Whitepapers
A Lightweight Iterative Positioning Algorithm for Context-Aware Wireless Sensor Networks: Proof of Correctness
October 27, 2009, 12:00am PDT
In this paper, the authors propose an energy-efficient iterative positioning algorithm for Wireless Sensor Networks (WSNs). In the proposed algorithm, localization is achieved in two phases:...
Provided by University of Otago
-
Whitepapers
QUATTRO: QoS-Capable Cross-Layer MAC Protocol for Wireless Sensor Networks
October 27, 2009, 12:00am PDT
As the Wireless Sensor Network (WSN) technology evolves towards higher transmission rates, it makes sense to start considering sensing and transmission of real-time information, such as audio and...
Provided by University of Otago
-
Whitepapers
Towards a Hybrid Energy Efficient Multi-Tree-Based Optimized Routing Protocol for Wireless Networks
December 14, 2012, 12:00am PST
This paper considers the problem of designing power efficient routing with guaranteed delivery for sensor networks with unknown geographic locations. The authors propose HECTOR, a hybrid energy...
Provided by University of Otago
-
Whitepapers
An Efficient Hybrid Adaptive Location-aided Gateway Advertisement and Discovery Protocol for Heterogeneous Wireless and Mobile Networks
October 27, 2009, 12:00am PDT
Recent advances in wireless communications and the availability of Heterogeneous Wireless and Mobile Networks (HWMNs) have enabled the development of interesting applications. The main objective...
Provided by University of Otago
-
Whitepapers
Distributed Management of Energy-Efficient Lightpaths for Computational Grids
November 21, 2012, 12:00am PST
Information and Communication Technologies (ICTs) are contributing to a large amount of the global electricity consumption. Due to tremendous increase in the bandwidth demands and utilisation of...
Provided by University of Otago
-
Whitepapers
A Novel Cross Layer TCP Optimization Protocol Over Wireless Networks by Markov Decision Process
November 21, 2012, 12:00am PST
Transmission Control Protocol (TCP) is well-known for its poor performance over wireless networks. The main reason is the unstable condition of wireless networks. Previous attempts to improve TCP...
Provided by University of Otago
-
Whitepapers
A Novel Collision Probability Based Adaptive Contention Windows Adjustment for QoS Fairness on Ad Hoc Wireless Networks
November 21, 2012, 12:00am PST
It is crucial to achieve Quality of Service (QoS) on IEEE802.11 in order to provide stable and reliable communication for real time and multimedia applications. Most of the recent QoS techniques...
Provided by University of Otago
-
Whitepapers
Achieving Load Awareness in Position-Based Wireless Ad Hoc Routing
September 1, 2012, 12:00am PDT
Wireless ad hoc networks are collections of wireless nodes that are usually battery powered and communicate with each other using radio frequency without a fixed infrastructure or centralised...
Provided by University of Otago
-
Whitepapers
A Security Architecture for Data Aggregation and Access Control in Smart Grids
November 10, 2011, 12:00am PST
The authors propose an integrated architecture for smart grids, that supports data aggregation and access control. Data can be aggregated by home area network, building area network and...
Provided by University of Otago
-
Whitepapers
Energy-Efficient Battery-Aware MAC Protocol for Wireless Sensor Networks
March 12, 2012, 12:00am PDT
Wireless sensor networks suffer from limited power resources. Therefore, managing the energy constraints and exploring new ways to minimize the power consumption during the operation of the nodes...
Provided by University of Otago
-
Whitepapers
Vehicular Movement Patterns: A Prediction-Based Route Discovery Technique for VANETs
May 24, 2012, 12:00am PDT
Applications for Vehicular Ad-hoc NETworks (VANETs) have been surfacing every day as with any new network architecture. One of the many challenges that have been addressed is the use of...
Provided by University of Otago
-
Whitepapers
Asymptotic Analysis of Outage Probability in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
The aggregate interference distribution in cognitive radio networks is studied in a rigorous analytical way using the popular Poisson point process model. While a number of results are available...
Provided by University of Otago
-
Whitepapers
Two-Level Energy-Based Supplier Selection Protocol for Mobile P2P 3D Streaming
May 24, 2012, 12:00am PDT
Due to the important developments in the area of wireless networks and mobile computing, P2P networks-based 3D streaming over thin mobile devices is starting to gain the interest of many research...
Provided by University of Otago
-
Whitepapers
A Comparison of Interference Cartography Generation Techniques in Cognitive Radio Networks
May 24, 2012, 12:00am PDT
Interference cartographs can be utilized to determine no-transmit zones and to set the interference-free transmit power for secondary users in cognitive radio networks. This paper provides a...
Provided by University of Otago
-
Whitepapers
Aggregation-Based Discovery for Virtual Network Environments
May 24, 2012, 12:00am PDT
Resource discovery aims to assist the Virtual Network Provider (VNP) in selecting the best Infrastructure Provider (InP) which has the best matching resources, for a Virtual Network (VN) request....
Provided by University of Otago
-
Whitepapers
VIRTUS: A Resilient Location-Aware Video Unicast Scheme for Vehicular Networks
May 24, 2012, 12:00am PDT
Video streaming capabilities over Vehicular Ad Hoc NETworks (VANETs) are crucial to the development of interesting and valuable services. However, VANETs are a challenging environment to this kind...
Provided by University of Otago
-
Whitepapers
An Efficient QoS MAC for IEEE 802.11p Over Cognitive Multichannel Vehicular Networks
May 24, 2012, 12:00am PDT
One of the most challenging issues facing vehicular networks lies in the design of an efficient MAC protocol adaptable to different traffic scenarios (urban and suburban environments). While each...
Provided by University of Otago
-
Whitepapers
Cooperative Location Verification for Vehicular Ad-Hoc Networks
May 24, 2012, 12:00am PDT
Vehicular Ad hoc NETworks (VANETs) have attracted much attention over the last few years. Localization and position information of vehicles is very significant in VANETs; this is a result of the...
Provided by University of Otago
-
Whitepapers
Regression Test Suite Prioritization Using System Models
December 10, 2010, 12:00am PST
During regression testing, a modified system is often retested using an existing test suite. Since the size of the test suite may be very large, testers are interested in detecting faults in the...
Provided by University of Otago
-
Whitepapers
How to Print a Secret
July 20, 2009, 12:00am PDT
The authors consider the problem of how to print a human-readable message, or image, on a piece of paper, while simultaneously preventing the participating printing agents or devices from learning...
Provided by University of Otago
-
Whitepapers
A Strict Hierarchy of Dynamic Graphs for Shortest, Fastest, and Foremost Broadcast
October 11, 2012, 12:00am PDT
The notion of highly dynamic networks encompasses many real-world contexts. The need to categorize and understand them led the engineering community to design a variety of mobility models, based...
Provided by University of Otago
-
White Papers
Cloud Computing: The Emperor's New Clothes of IT
May 17, 2011, 12:00am PDT
Cloud computing has recently become a hot topic in IT circles. Organizations see it as an opportunity to reduce costs. Outsourcing the provision of data services has become an attractive option in...
Provided by University of Otago
-
White Papers
SAFEWEB: A Middleware for Securing Ruby-Based Web Applications
December 1, 2011, 12:00am PST
Web applications in many domains such as healthcare and finance must process sensitive data, while complying with legal policies regarding the release of different classes of data to different...
Provided by University of Otago
-
White Papers
IO Tetris: Deep Storage Consolidation for the Cloud Via Fine-Grained Workload Analysis
May 16, 2011, 12:00am PDT
Intelligent workload consolidation in storage systems leads to better Return On Investment (ROI), in terms of more efficient use of data center resources, better Quality of Service (QoS), and...
Provided by University of Otago
-
White Papers
The Growth Delusion
August 24, 2009, 12:00am PDT
Concern for the environment and a move towards "Sustainable development" has assisted progress in a wide range of renewable energy technologies in recent years. The science suggests that a...
Provided by University of Otago
-
White Papers
Modelling The Dynamics Of Business Interaction
June 28, 2010, 12:00am PDT
Those companies are embedded in open boundary-less networks and have multiple direct and indirect relationships with a number of other organizations cannot be disputed. Indeed, this has been a...
Provided by University of Otago
-
White Papers
A Software Framework for Application Development Using ZigBee Protocol
May 8, 2009, 12:00am PDT
The Information Science Discussion Paper Series authored by Bastin Tony Roy Savarimuthu, Morgan Bruce and Maryam Purvis from the Department of Information Science, University of Otago is a...
Provided by University of Otago
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