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Iowa State University
(141 results)-
White Papers
Efficient Broadcasting in Homogeneous and Heterogeneous Wireless Ad Hoc Network
July 29, 2008, 12:00am PDT
Network-wide broadcasting is a fundamental and frequently invoked communication primitive in wireless ad hoc networks where there are no pre-existing communication infrastructures. Existing...
Provided by Iowa State University
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White Papers
Using New JMP Interactive Modules to Teach Concepts in Introductory Statistics
March 19, 2010, 12:00am PDT
Simulation has become an important tool in teaching topics related to sampling distributions and inference in the introductory statistics class. Many of these simulations have been developed with...
Provided by Iowa State University
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White Papers
Distribution-Free Learning of Bayesian Network Structure in Continuous Domains
January 1, 2010, 12:00am PST
In this paper authors present a method for learning the structure of Bayesian networks (BNs) without making any assumptions on the probability distribution of the domain. This is mainly useful for...
Provided by Iowa State University
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White Papers
Implementing Augmented Reality Into the Gaming Industry on a Desktop Display Interface
July 30, 2008, 12:00am PDT
This project focuses on the use of desktop display interfaces for augmented reality (AR) gaming. With this type of interface, the user is able to look at a screen and see the computer-generated...
Provided by Iowa State University
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White Papers
Improving VoIP Capacity in Multi-Rate IEEE 802.11e WLANs Via Relay
April 26, 2010, 12:00am PDT
In order to improve the Voice over IP (VoIP) capacity of a Wireless Local Area Network (WLAN), the paper develops a relay-aided solution, which includes a relay-aided admission control scheme, a...
Provided by Iowa State University
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White Papers
Supporting VoIP Services in IEEE 802.11e WLANs
September 17, 2009, 12:00am PDT
Voice over Internet Protocol (VoIP) over Wireless Local Area Network (WLAN) is becoming popular thanks to its cost efficiency. How-ever, it has been a challenge to provide good quality of VoIP...
Provided by Iowa State University
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White Papers
Ea1uatmg Data Collection Qualit3 After Piotocol Changes
March 10, 2009, 12:00am PDT
It is important to evaluate data quality in any survey, but especially after changes in protocols and measurement systems. When revisions have been made in a longitudinal survey, it can be...
Provided by Iowa State University
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White Papers
Heterogeneous QoS Multicast in DiffServ-Like Networks
January 1, 2010, 12:00am PST
Multicasting in DiffServ networks is a challenging problem due to the architectural conflicts between them, namely, stateful vs. stateless core. This paper assumes an Edge-Based Multicast (EBM)...
Provided by Iowa State University
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White Papers
Managing Group Dynamics and Failures in QoS Multicasting
January 1, 2010, 12:00am PST
The recent proliferation of QoS-aware group applications over the Internet has accelerated the need for scalable and efficient multicast support. This paper presents a multicast "Life-Cycle" model...
Provided by Iowa State University
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White Papers
A Case for Tree Migration and Integrated Tree Maintenance in QoS Multicasting
January 1, 2010, 12:00am PST
The proliferation of QoS-aware group applications coupled with the limited availability of network resources demands for efficient mechanisms to support QoS multicasting. During a life-cycle of a...
Provided by Iowa State University
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White Papers
Dual-Crosshatch Disk Array: A Highly Reliable-RAID Architecture
January 1, 2010, 12:00am PST
This paper proposes a highly reliable RAID architecture called a Dual-Crosshatch Disk Array. It used the proposed interleaved 2d-parity scheme, a low overhead triple-erasure correcting parity...
Provided by Iowa State University
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White Papers
Stimulating Node Cooperation in Mobile Ad Hoc Networks
January 1, 2010, 12:00am PST
Mobile Ad hoc NETworks (MANETs) rely on the cooperation of nodes for packet routing and forwarding. However, much of the existing works in MANETs assume that mobile nodes (possibly owned by...
Provided by Iowa State University
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White Papers
A Survey: Routing Metrics for Wireless Mesh Networks
May 5, 2009, 12:00am PDT
This paper provides a comprehensive survey of various routing metrics that have been proposed for wireless mesh networks and two new routing metrics have been proposed. Avoidance of congestion at...
Provided by Iowa State University
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White Papers
Understanding Cash Flow Analysis
December 16, 2009, 12:00am PST
A cash flow statement is a listing of cash flows that occurred during the past accounting period. A cash flow statement is not only concerned with the amount of the cash flows but also the timing...
Provided by Iowa State University
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White Papers
Cyber-Vulnerability of Power Grid Monitoring and Control Systems
May 29, 2008, 12:00am PDT
In this paper, a methodology is proposed for the evaluation of the impact of cyber attacks on the power grid. This is a systematical approach to evaluate the vulnerabilities of SCADA system at...
Provided by Iowa State University
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White Papers
A Simulation Study of CSMA/CA Performance in 60 GHz WPANs
October 27, 2009, 12:00am PDT
Recently, there has been an increasing interest in developing 60 GHz Wireless Personal Area Networks (WPANs) for short-range high-speed wireless communications. Both industrial and standardization...
Provided by Iowa State University
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White Papers
EagleVision: A Pervasive Mobile Device Protection System
June 5, 2009, 12:00am PDT
Mobile devices like laptops, iPhones and PDAs are highly susceptible to theft in public places like airport terminal, library and cafe. Moreover, the exposure of sensitive data stored in the...
Provided by Iowa State University
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White Papers
Sensor-Aided Navigation in GPS-Denied Environments
November 1, 2010, 12:00am PDT
In this work the authors propose a novel approach to navigate users in GPS-denied environments with the help of sensors. The basic idea is to deploy wireless sensors over the field of interest and...
Provided by Iowa State University
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White Papers
Cybersecurity for Electric Power Control and Automation Systems
December 20, 2007, 12:00am PST
Disruption of electric power operations can be catastrophic on the national security and economy. Due to the complexity of widely dispersed assets and the interdependency between computer,...
Provided by Iowa State University
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White Papers
Secure DVR Protocol Using Factual Correctness
January 1, 2011, 12:00am PST
The routing protocols in use today operate on implicit trust among the different routing elements. Specifically, the Distance Vector Routing (DVR) protocols compute updates and routing tables in a...
Provided by Iowa State University
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White Papers
Eliminating SQL Injection Attacks - A Transparent Defense Mechanism
January 1, 2011, 12:00am PST
The widespread adoption of web services as an instant means of information dissemination and various other transactions, has essentially made them a key component of today's Internet...
Provided by Iowa State University
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White Papers
Assembling Composite Web Services From Autonomous Components
January 1, 2011, 12:00am PST
Web services are fast emerging as the technology of choice to build distributed information systems in multiple domains including e-Business and e-Science. An important challenge is to develop...
Provided by Iowa State University
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White Papers
Composing Web Services Through Automatic Reformulation of Service Specifications
April 11, 2008, 12:00am PDT
Typical approaches to service composition seek to realize a goal service specification, described using a Labeled Transition System (LTS) provided by a service developer, by constructing a...
Provided by Iowa State University
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White Papers
Privacy-Preserving Reasoning on the Semantic Web
August 16, 2007, 12:00am PDT
Many semantic web applications require selective sharing of ontologies between autonomous entities due to copyright, privacy or security concerns. In such cases, an agent might want to hide a part...
Provided by Iowa State University
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White Papers
Distributed Power Control in Wireless Ad Hoc Networks Using Message Passing: Throughput Optimality and Network Utility Maximization
March 3, 2008, 12:00am PST
This paper presents an algorithm for distributed power control and scheduling over wireless ad hoc-networks, where the data rate on each link depends on the transmission power levels at...
Provided by Iowa State University
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White Papers
Scalable, Updatable Predictive Models for Sequence Data
October 28, 2010, 12:00am PDT
The emergence of data rich domains has led to an exponential growth in the size and number of data repositories, offering exciting opportunities to learn from the data using machine learning...
Provided by Iowa State University
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White Papers
Slede: Framework for Automatic Verification of Sensor Network Security Protocol Implementations
May 7, 2009, 12:00am PDT
A sensor network is a collection of small, low power, low-cost sensor nodes that have limited computational, communication and storage capacity. These nodes can operate unattended, sensing and...
Provided by Iowa State University
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White Papers
On Scheduling for Minimizing End-to-End Buffer Usage Over Multihop Wireless Networks
December 19, 2009, 12:00am PST
While there has been much progress in designing backpressure based stabilizing algorithms for multihop wireless networks, end-to-end performance (e.g., End-to-end buffer usage) results have not...
Provided by Iowa State University
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White Papers
Scheduling in Mobile Ad Hoc Networks With Topology and Channel-State Uncertainty
January 21, 2009, 12:00am PST
The authors study throughput-optimal scheduling/routing over mobile ad-hoc networks with time-varying (Fading) channels. Traditional back-pressure algorithms (Based on the work by Tassiulas and...
Provided by Iowa State University
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White Papers
Bandwidth Recycling in IEEE 802.16 Networks
March 6, 2010, 12:00am PST
IEEE 802.16 standard was designed to support the bandwidth demanding applications with Quality of Service (QoS). Bandwidth is reserved for each application to ensure the QoS. For Variable Bit Rate...
Provided by Iowa State University
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White Papers
Modular Verification of Higher-Order Methods With Mandatory Calls Specified by Model Programs
August 21, 2007, 12:00am PDT
No program exists in a vacuum. Instead, developers use components from libraries and frameworks. For example, a Java programmer may use Swing, Java's input/output framework, and Jakarta Commons....
Provided by Iowa State University
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White Papers
Coping With Spam Using Microsoft Outlook Web Access
February 4, 2010, 12:00am PST
Spam is a slang term for unsolicited commercial email. (It is not the same as SPAM, a canned meat product from the Hormel Corporation. SPAM is good, spam is bad.) If one has put the email address...
Provided by Iowa State University
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White Papers
Towards Efficient Java Virtual Machine Support for Dynamic Deployment of Inter-Type Declarations
December 25, 2009, 12:00am PST
Dynamic deployment is an important feature of an aspect-oriented language design that has many applications, e.g. in runtime monitoring, runtime adaptation to fix bugs or add features to long...
Provided by Iowa State University
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White Papers
Local and On-the-Fly Choreography-Based Web Service Composition
January 1, 2011, 12:00am PST
The authors present a goal-directed, local and on-the-fly algorithm for verifying the existence of and synthesizing a choreographer for Web service composition. They use i/o-automata to represent...
Provided by Iowa State University
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White Papers
Condition Data Aggregation With Application to Failure Rate Calculation of Power Transformers
January 1, 2011, 12:00am PST
Cost-effective equipment maintenance for electric power transmission systems requires ongoing integration of information from multiple, highly distributed, and heterogeneous data sources storing...
Provided by Iowa State University
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White Papers
High Speed Pattern Matching for Network IDS/IPS
January 1, 2011, 12:00am PST
The phenomenal growth of the Internet in the last decade and society's increasing dependence on it has brought along with it, a flood of security attacks on the networking and computing...
Provided by Iowa State University
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White Papers
Optimizing the Update Packet Stream for Web Applications
July 24, 2010, 12:00am PDT
The Internet has evolved to an extent where users now expect any-where any-time and any-form access to their personalized data and applications of choice. However, providing a coherent (seamless)...
Provided by Iowa State University
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White Papers
Minimum Cost Distributed Source Coding Over a Network
August 12, 2009, 12:00am PDT
This work considers the problem of transmitting multiple compressible sources over a network at minimum cost. The aim is to find the optimal rates at which the sources should be compressed and the...
Provided by Iowa State University
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White Papers
Interference Alignment and Degrees of Freedom Region of Cellular Sigma Channel
March 1, 2011, 12:00am PST
The authors investigate the Degrees of Freedom (DoF) region of a cellular network, where the cells can have overlapping areas. Within an overlapping area, the mobile users can access multiple base...
Provided by Iowa State University
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White Papers
Overlay Protection Against Link Failures Using Network Coding
November 15, 2010, 12:00am PST
This paper introduces a network coding-based protection scheme against single and multiple link failures. The proposed strategy ensures that in a connection, each node receives two copies of the...
Provided by Iowa State University
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Whitepapers
Design and Provisioning of WDM Networks for Many-to-Many Traffic Grooming
October 27, 2009, 12:00am PDT
A large number of network applications today allow several users to interact together using the many-to-many service mode. A many-to-many session consists of group of users (the authors refer to...
Provided by Iowa State University
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Whitepapers
Tree-Based Protection of Multicast Services in WDM Mesh Networks
October 27, 2009, 12:00am PDT
In this paper, the authors address the multicast survivability problem of using minimum resources to provision a multicast session and its protection paths (trees) in a network such that the...
Provided by Iowa State University
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Whitepapers
An Ad Hoc Group Signature Scheme for Accountable and Anonymous Access to Outsourced Data
May 24, 2012, 12:00am PDT
This paper presents a group signature scheme called adhoc sign for dynamically formed groups, to support accountable and anonymous access to outsourced data. Each user is assigned a certain set of...
Provided by Iowa State University
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Whitepapers
ZigBee-Assisted Power Saving Management for Mobile Devices
August 3, 2012, 12:00am PDT
WiFi transmission can consume much energy on energy-constrained mobile devices. To improve energy efficiency, the Power Saving Management (PSM) has been standardized and applied. The standard PSM,...
Provided by Iowa State University
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Whitepapers
GOT: Grid-Based On-Road Localization Through Inter-Vehicle Collaboration
November 23, 2010, 12:00am PST
GPS navigators have been widely adopted by drivers. However, due to the sensibility of GPS signals to terrain, vehicles cannot get their locations when they are inside a tunnel or on a road...
Provided by Iowa State University
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Whitepapers
DOVE: Data Dissemination to a Fixed Number of Receivers in VANET
November 21, 2010, 12:00am PST
Efficient data dissemination to a fixed number of receivers in VANET is a new issue and has two challenges. First, it is hard to accurately control the number of receivers and achieve low...
Provided by Iowa State University
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Whitepapers
Assigning Spots for Persistent Data Dissemination to All the Vehicles in VANET
November 23, 2010, 12:00am PST
Persistent data dissemination to a geographical area enjoys wide applicability in VANET. For a dissemination area, to guarantee the posted message being disseminated to every vehicle driving in...
Provided by Iowa State University
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Whitepapers
Trustworthiness of Random Network Coded Information in Untrustworthy Networks
May 24, 2012, 12:00am PDT
The authors examine the trustworthiness of random network coded information in untrustworthy networks, where the network nodes provide false data purposely or unknowingly and data transmissions...
Provided by Iowa State University
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Whitepapers
P2-Cycles: P-Cycles With Parasitic Protection Links
September 3, 2009, 12:00am PDT
The p-cycle and its Failure Independent Path Protection (FIPP) extension are known to be efficient and agile protection strategies. The p-cycle is preconfigured such that if there is a failure,...
Provided by Iowa State University
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Whitepapers
An Energy-Efficient Wireless Sensor Network for Precision Agriculture
April 12, 2010, 12:00am PDT
The use of wireless sensor networks is essential to implementation of information and control technologies in application areas such as precision agriculture. The authors design MAC and Network...
Provided by Iowa State University
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Whitepapers
Dynamic Provisioning of Optical Networks With Many-to-Many Traffic Grooming
May 17, 2010, 12:00am PDT
A large number of network applications today allow several users to interact together using the many-to-many service mode. In many-to-many communication, a session consists of a group of users,...
Provided by Iowa State University
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Whitepapers
1+N Protection in Polynomial Time: A Heuristic Approach
July 27, 2010, 12:00am PDT
The generalized 1+N protection, protects N unicast connections by a single Steiner tree connecting all end points of the connections. By sending network coded packets on the protection Steiner...
Provided by Iowa State University
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Whitepapers
FlexTDMA for Delay-Stable Communications in Asynchronous Industrial Control Networks
July 25, 2010, 12:00am PDT
To support closed industrial control networks the authors consider constant end-to-end delay with minimal delay-jitter support in an asynchronous network. The Rate Constrained Static Priority...
Provided by Iowa State University
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Whitepapers
Performance Modeling and Simulation Studies of MAC Protocols in Sensor Network Performance
April 18, 2011, 12:00am PDT
The use of wireless sensor networks is essential for implementation of information and control technologies in precision agriculture. The authors present their design of network stack for such an...
Provided by Iowa State University
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Whitepapers
Efficient Spectrum Searching and Monitoring in Cognitive Radio Network
August 22, 2011, 12:00am PDT
Wireless spectrum is highly underutilized, where significant parts of it are used only for some time periods in an on/off manner and with large geographical variations. Such low utilization in...
Provided by Iowa State University
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Whitepapers
Hybrid Network-Erasure Coding Protection of Multi-Source, Multi-Sink Multicast Sessions in WSNs
March 30, 2012, 12:00am PDT
In this paper, the authors consider the problem of providing fault tolerant operation for multicast networks with multiple sources, e.g., sensors, and delivering data to a pre-defined set of...
Provided by Iowa State University
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Whitepapers
Delay-Stable Communications in Simultaneous Multicast Networks
July 12, 2012, 12:00am PDT
To properly operate closed industrial control networks, it is required that communication with nearly constant delay bounds be supported. The authors introduced FlexTDMA in order to provide this...
Provided by Iowa State University
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Whitepapers
Impact of Network Conditions on Delay-Stable Communications in Closed Industrial Control Networks
July 23, 2012, 12:00am PDT
To properly operate closed industrial control networks, it is required that communication with nearly constant delay bounds be supported. The authors introduced FlexTDMA in order to provide this...
Provided by Iowa State University
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Whitepapers
Spectrum Decision for Efficient Routing in Cognitive Radio Network
April 22, 2012, 12:00am PDT
The Cognitive Radio (CR) nodes in a Cognitive Radio Network (CRN) do not have license to use specific spectrum band. Instead, they use the spectrum bands of the licensed Primary Users (PU) without...
Provided by Iowa State University
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Whitepapers
Repairable Replication-Based Storage Systems Using Resolvable Designs
October 7, 2012, 12:00am PDT
The authors consider the design of regenerating codes for distributed storage systems at the Minimum Bandwidth Regeneration (MBR) point. The codes allow for a repair process that is exact and...
Provided by Iowa State University
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Whitepapers
Approximation Algorithms for Many-to-Many Traffic Grooming in WDM Mesh Networks
December 16, 2009, 12:00am PST
A large number of network applications today allow several users to interact together using the many-to-many service mode. In many-to-many communication, also referred to as group communication, a...
Provided by Iowa State University
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Whitepapers
A Wireless Sensor Network for Precision Agriculture and Its Performance
August 9, 2011, 12:00am PDT
The use of wireless sensor networks is essential for implementation of information and control technologies in precision agriculture. The authors present their design of network stack for such an...
Provided by Iowa State University
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Whitepapers
Efficient and Secure Multicast in WirelessMAN: A Cross-Layer Design
October 29, 2007, 12:00am PDT
Effectively adding security measures to a multicast service is an intriguing problem, especially when the service is deployed in a wireless setting. Next generation IEEE 802.16 standard...
Provided by Iowa State University
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Whitepapers
Scheduling in Mobile Wireless Networks With Topology and Channel-State Uncertainty
January 21, 2009, 12:00am PST
The authors study throughput-optimal scheduling/routing over mobile ad-hoc networks with time-varying (fading) channels. Traditional back-pressure algorithms (based on the work by Tassiulas and...
Provided by Iowa State University
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Whitepapers
Modeling Web Usage Profiles of Cloud Services for Utility Cost Analysis
November 29, 2011, 12:00am PST
Early proponents of public cloud computing have come to identify cost savings a key factor for adoption. However, the adoption and hosting of a web application in the cloud does not provide any...
Provided by Iowa State University
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Whitepapers
An Automatic, Time-Based, Secure Pairing Protocol for Passive RFID
June 13, 2011, 12:00am PDT
This paper introduces the Adopted-Pet (AP) protocol, an automatic (i.e. requiring no human interaction) secure pairing protocol, adequate for the pairing between a passive RFID tag and a reader....
Provided by Iowa State University
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White Papers
GP2S: Generic Privacy-Preservation Solutions for Approximate Aggregation of Sensor Data
December 18, 2007, 12:00am PST
Protecting privacy in sensor networks poses new challenges because of the potential incompatibilities between new privacy-preserving mechanisms and mechanisms already implemented in sensor...
Provided by Iowa State University
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White Papers
Confidentiality Protection for Distributed Sensor Data Aggregation
January 16, 2008, 12:00am PST
Efficiency and security are two basic requirements for sensor network design. However, these requirements could be sharply contrary to each other in some scenarios. For example, in-network data...
Provided by Iowa State University
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White Papers
A Three-Tier Framework for Intruder Information Sharing in Sensor Networks
April 2, 2008, 12:00am PDT
In sensor networks, an intruder (i.e., compromised node) identified and isolated in one place can be relocated and/or duplicated to other places to continue attacks; hence, detection and isolation...
Provided by Iowa State University
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White Papers
Node Reclamation and Replacement for Long-Lived Sensor Networks
May 4, 2009, 12:00am PDT
When deployed for long-term tasks, the energy required to support sensor nodes' activities is far more than the energy that can be preloaded in their batteries. No matter how the battery energy is...
Provided by Iowa State University
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White Papers
Towards Reliable Scheduling Schemes for Long-Lived Replaceable Sensor Networks
July 22, 2010, 12:00am PDT
To address energy constraint problem in sensor networks, node reclamation and replacement strategy has been proposed for networks accessible to human beings and robots. The major challenge in...
Provided by Iowa State University
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White Papers
An Integrated Network of Roadside Sensors and Vehicles for Driving Safety: Concept, Design and Experiments
June 24, 2010, 12:00am PDT
One major goal of the Vehicular Ad hoc NETwork (VANET) is to improve driving safety. However, the VANET may not guarantee timely detection of dangerous road conditions or maintain communication...
Provided by Iowa State University
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White Papers
Prolonging Sensor Network Lifetime Through Wireless Charging
September 17, 2010, 12:00am PDT
The emerging wireless charging technology is a promising alternative to address the power constraint problem in sensor networks. Comparing to existing approaches, this technology can replenish...
Provided by Iowa State University
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White Papers
A Light-Weight Solution to Preservation of Access Pattern Privacy in Un-Trusted Clouds
June 9, 2011, 12:00am PDT
Cloud computing is a new computing paradigm that is gaining in-creased popularity. More and more sensitive user data are stored in the cloud. The privacy of users' access pattern to the data...
Provided by Iowa State University
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White Papers
Heterogeneity-Aware Design for Automatic Detection of Problematic Road Conditions
August 22, 2011, 12:00am PDT
Improving driving safety is one major objective of forming Vehicular Ad hoc NETworks (VANETs). Existing VANETs usually assume drivers detect and report safety-related road conditions. However,...
Provided by Iowa State University
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White Papers
LBA: Lifetime Balanced Data Aggregation in Low Duty Cycle Sensor Networks
January 15, 2012, 12:00am PST
This paper proposes LBA, a lifetime balanced data aggregation scheme for asynchronous and duty cycle sensor networks under an application-specific requirement of end-to-end data delivery delay...
Provided by Iowa State University
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White Papers
ZigBee-Assisted WiFi Transmission for Multi-Interface Mobile Devices
November 14, 2011, 12:00am PST
It has been common for a mobile device to have WiFi and Bluetooth interfaces. As the ZigBee technology becomes more mature, it will not be surprising to see the ZigBee interface commonly embedded...
Provided by Iowa State University
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White Papers
On the Delay Optimality of Proportional Fairness
May 9, 2008, 12:00am PDT
The authors consider connection-level models of resource allocation in the Internet, where files arrive into the network according to a Poisson process and the size of each file is exponentially...
Provided by Iowa State University
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White Papers
The Methodology for Evaluating Response Cost for Intrusion Response Systems
December 11, 2008, 12:00am PST
Recent advances in the field of intrusion detection brought new requirements to intrusion prevention and response. Traditionally, the response to the detected attack was selected and deployed...
Provided by Iowa State University
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White Papers
A Framework for Cost Sensitive Assessment of Intrusion Response Selection
April 30, 2009, 12:00am PDT
In recent years, cost-sensitive intrusion response has gained significant interest, mainly due to its emphasis on the balance between potential damage incurred by the intrusion and cost of the...
Provided by Iowa State University
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