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Iowa State University
(141 results)-
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
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
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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White Papers
Sustainable Fiscal Policy With Rising Public Debt-To-GDP Ratios
November 17, 2007, 12:00am PST
In financial and economic policy circles concerned with public debt in developing countries, a rising debt-GDP ratio is interpreted as a signal of overborrowing, warning of debt defaults if strong...
Provided by Iowa State University
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White Papers
Survivability Strategies in Multihop Wireless Networks
August 4, 2009, 12:00am PDT
Survivability is an important network characteristic that provides a certain level of data delivery guarantees. The degree of survivability is usually governed by the data transfer mechanism or...
Provided by Iowa State University
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White Papers
Market Sentiment, IPO Underpricing And Valuation
March 1, 2008, 12:00am PST
The authors examine IPO underpricing, valuation, and wealth allocation in relation to investor sentiment, information asymmetry, and underwriter reputation. They find that underpricing is...
Provided by Iowa State University
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White Papers
Content-Based Network Adaptive Wireless Transmission of Remote Surveillance Video
January 1, 2011, 12:00am PST
Due to advances in network technology and the prevalence of wireless networks, it has become possible to realize Remote Video Surveillance (RVS) applications as a low cost system using existing...
Provided by Iowa State University
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White Papers
A High-Performance Network Intrusion Detection System
January 1, 2008, 12:00am PST
This paper presents a new approach for network intrusion detection based on concise specifications that characterize normal and abnormal network packet sequences. The specification language is...
Provided by Iowa State University
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White Papers
Real Interference Alignment and Degrees of Freedom Region of Wireless X Networks
September 13, 2011, 12:00am PDT
The authors consider a single hop wireless X network with K transmitters and J receivers, all with single antenna. Each transmitter conveys for each receiver an independent message. The channel is...
Provided by Iowa State University
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White Papers
Distributed Power Control and Coding-Modulation Adaptation in Wireless Networks Using Annealed Gibbs Sampling
August 27, 2011, 12:00am PDT
In wireless networks, the transmission rate of a link is determined by received signal strength, interference from simultaneous transmissions, and available coding-modulation schemes. Rate...
Provided by Iowa State University
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White Papers
Uplink Channel Assignment in Cognitive Radio WMNs Using Physical Layer Network Coding
February 8, 2011, 12:00am PST
In this paper, the authors introduce a low overhead scheme for the uplink channel allocation within a single cell of Cognitive Radio Wireless Mesh Network (CR-WMNs). The scheme does not rely on...
Provided by Iowa State University
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White Papers
Optimized Sink Mobility for Energy and Delay Efficient Data Collection in FWSNs
April 12, 2010, 12:00am PDT
Network fragmentation is a potential problem in Wireless Sensor Networks (WSNs) due to many reasons like, node failures or environmental conditions (obstacles) that prevent connected deployments....
Provided by Iowa State University
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White Papers
Low-Complexity Scheduling Algorithms for Multi-Channel Downlink Wireless Networks
December 14, 2009, 12:00am PST
This paper considers the problem of designing scheduling algorithms for multi-channel (e.g., OFDM) wireless downlink networks with n users/OFDM sub-channels. For this system, while the classical...
Provided by Iowa State University
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White Papers
A Power-Efficient Scheme for Securing Multicast in Hierarchical Sensor Networks
May 15, 2009, 12:00am PDT
Hierarchical architectures are more and more widely adopted for organizing wireless sensor networks. In such architectures, middle-tier nodes take important roles, and preventing a malicious node...
Provided by Iowa State University
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White Papers
On-Demand Node Reclamation and Replacement for Guaranteed Area Coverage in Long-Lived Sensor Networks
August 5, 2009, 12:00am PDT
To achieve required sensing coverage for a very long period of time is an important and challenging problem in sensor network design. Recently, Tong et al. have proposed a Node Replacement and...
Provided by Iowa State University
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White Papers
How Wireless Power Charging Technology Affects Sensor Network Deployment and Routing
June 24, 2010, 12:00am PDT
As wireless power charging technology emerges, some basic principles in sensor network design are changed accordingly. Existing sensor node deployment and data routing strategies cannot exploit...
Provided by Iowa State University
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White Papers
J-RoC: A Joint Routing and Charging Scheme to Prolong Sensor Network Lifetime
August 24, 2011, 12:00am PDT
The emerging wireless charging technology creates a controllable and perpetual energy source to provide wireless power over distance. Schemes have been proposed to make use of wireless charging to...
Provided by Iowa State University
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White Papers
Receiver-Based Channel Allocation for Wireless Cognitive Radio Mesh Networks
January 26, 2010, 12:00am PST
Empowered by the cognitive radio technology and motivated by the sporadic channel utilization, both spatially and temporally, dynamic spectrum access networks, also referred to as cognitive radio...
Provided by Iowa State University
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White Papers
Design and Provisioning of WDM Networks With Many-to-Many Traffic Grooming
May 17, 2010, 12:00am PDT
The authors have considered and analyzed four different WDM network architectures for many-to-many traffic grooming. For NSOWDM and NSTWDM networks, they have introduced light-path cycles as the...
Provided by Iowa State University
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White Papers
Two-Link Failure Protection in WDM Mesh Networks With P-Cycles
April 29, 2010, 12:00am PDT
In WDM networks, it is important to protect connections against link failures due to the high bandwidth provided by a fiber link. Although many p-cycle based schemes have been proposed for...
Provided by Iowa State University
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White Papers
Power Aware Connection Provisioning for All-Optical Multicast Traffic in WDM Networks
May 25, 2010, 12:00am PDT
The connection provisioning problem attempts to achieve its objective of guaranteeing the maximum throughput and minimal blocking probability. In optical networks, this problem is mainly the...
Provided by Iowa State University
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White Papers
Many-to-Many Traffic Grooming in WDM Networks
August 5, 2009, 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, also referred to as group communication, a...
Provided by Iowa State University
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White Papers
Network Coding-Based Protection of Many-to-One Wireless Flows
February 2, 2009, 12:00am PST
This paper addresses the problem of survivability of many-to-one flows in wireless networks, such as Wireless Mesh Networks (WMNs) and Wireless Sensor Networks (WSNs). Traditional protection...
Provided by Iowa State University
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White Papers
Optical Amplifiers Placement in WDM Mesh Networks for Optical Multicasting Service Support
October 30, 2008, 12:00am PDT
The problem of placing the Optical Amplifiers (OAs) in wavelength-routing mesh networks has been studied in the literature in two contexts: network provisioning and connections provisioning. In...
Provided by Iowa State University
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White Papers
Data Aggregation and Routing in Wireless Sensor Networks: Optimal and Heuristic Algorithms
September 13, 2008, 12:00am PDT
A fundamental challenge in the design of Wireless Sensor Networks (WSNs) is to maximize their lifetimes especially when they have a limited and non-replenishable energy supply. To extend the...
Provided by Iowa State University
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White Papers
Efficient Virtual-Backbone Routing in Mobile Ad Hoc Networks
October 2, 2007, 12:00am PDT
Since the physical topology of Mobile Ad hoc NETworks (MANETs) is generally unstable, an appealing approach is the construction of a stable and robust virtual topology or backbone. A virtual...
Provided by Iowa State University
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White Papers
Light-Trail Testbed for Metro Optical Networks
January 1, 2008, 12:00am PST
Telecommunication networks have rapidly added staggering amounts of capacity to their long haul networks at low costs per bit using DWDM technologies. Concurrently, there has been a wave of new...
Provided by Iowa State University
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White Papers
On Multicasting in Wavelength-Routing Mesh Networks
January 1, 2008, 12:00am PST
This paper considers multicasting on wavelength-routing mesh optical networks. Although multicasting has been studied extensively in different network environments, multicasting in this...
Provided by Iowa State University
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White Papers
Scheduling in Multihop Wireless Networks Without Back-Pressure
September 30, 2010, 12:00am PDT
This paper focuses on scheduling in multi-hop wireless networks. The well-known back-pressure scheduling algorithm is throughput optimal, but requires constant exchange of queue-length information...
Provided by Iowa State University
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White Papers
Back-Pressure Routing for Intermittently Connected Networks
December 20, 2009, 12:00am PST
The authors study a mobile wireless network where groups or clusters of nodes are intermittently connected via mobile "Carriers" (the carriers provide connectivity over time among different...
Provided by Iowa State University
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White Papers
AMES: A Framework For Fair Bandwidth Sharing
December 17, 2008, 12:00am PST
Fair bandwidth sharing has been an active research area since the early days of networking. Today's networks employ packet dropping as the primary mechanism for reacting to congestion, while...
Provided by Iowa State University
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White Papers
Analyzing Software Updates: Should You Build a Dynamic Updating Infrastructure?
December 11, 2010, 12:00am PST
The ability to adapt software systems to fix bugs, add/change features without restarting it is becoming important for many domains including but not limited to finance, social networking, control...
Provided by Iowa State University
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White Papers
Tisa: Towards Trustworthy Services in a Service-Oriented Architecture
December 10, 2008, 12:00am PST
Verifying whether a service implementation is conforming to its service-level agreements is important to inspire confidence in services in a service-oriented architecture. A part of these...
Provided by Iowa State University
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White Papers
Phase-Based Tuning for Better Utilization of Performance-Asymmetric Multicore Processors
January 20, 2010, 12:00am PST
The latest trend towards performance asymmetry among cores on a single chip of a multi-core processor is posing new challenges. For effective utilization of these performance-asymmetric multi-core...
Provided by Iowa State University
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White Papers
A More Precise Abstract Domain for Multi-Level Caches for Tighter WCET Analysis
September 6, 2010, 12:00am PDT
As demand for computational power of embedded applications has increased, their architectures have become more complex. One result of this increased complexity are real-time embedded systems with...
Provided by Iowa State University
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White Papers
A Quantitative Cost/Benefit Analysis for Dynamic Updating
September 6, 2009, 12:00am PDT
Dynamic software updating provides many benefits, e.g. in run-time monitoring, run-time adaptation to fix bugs in long running applications, etc. Although it has several advantages, no...
Provided by Iowa State University
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White Papers
Speeding Up Multi-Relational Data Mining
January 1, 2008, 12:00am PST
This paper presents a general approach to speeding up a family of multi-relational data mining algorithms that construct and use selection graphs to obtain the information needed for building...
Provided by Iowa State University
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White Papers
A Data Mining Technique to Detect Remote Exploits
December 20, 2007, 12:00am PST
This paper designed and implemented DExtor, a Data Mining based Exploit code detector, to protect network services. The main assumption of the work is that normal traffic into the network services...
Provided by Iowa State University
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White Papers
Architecture for Simultaneous Coding and Encryption Using Chaotic Maps
April 19, 2011, 12:00am PDT
In this paper, the authors discuss an interpretation of arithmetic coding using chaotic maps. They present a hardware implementation using 64 bit fixed point arithmetic on Virtex- 6 FPGA (with and...
Provided by Iowa State University
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White Papers
Hardware Architecture for Simultaneous Arithmetic Coding and Encryption
May 23, 2011, 12:00am PDT
Arithmetic coding is increasingly being used in upcoming image and video compression standards such as JPEG2000, and MPEG-4/H.264 AVC and SVC standards. It provides an efficient way of loss-less...
Provided by Iowa State University
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White Papers
Package-Based Description Logics
March 19, 2009, 12:00am PDT
The success of the world wide web can be partially attributed to the net-work effect : The absence of central control on the content and the organization of the web allows thousands of independent...
Provided by Iowa State University
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White Papers
Assessing the Performance of Macromolecular Sequence Classifiers
October 7, 2009, 12:00am PDT
Machine learning approaches offer some of the most cost-effective approaches to building predictive models (e.g., classifiers) in a broad range of applications in computational biology. Comparing...
Provided by Iowa State University
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White Papers
On Delay Constrained Multicast Capacity of Large-Scale Mobile Ad-Hoc Networks
August 15, 2009, 12:00am PDT
Wireless technology has provided an infrastructure-free and fast-deployable method to establish communication, and has inspired many emerging networks including Mobile Ad hoc NETworks (MANETs),...
Provided by Iowa State University
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White Papers
Performance Analysis Based on Requirements Traceability
October 22, 2007, 12:00am PDT
Software system performance analysis has become an important research topic in the last decade because it can be performed at early software development stages to mitigate the risk of redesign...
Provided by Iowa State University
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White Papers
Managing and Ensuring the Integrity of Non-Functional Requirements in Critical Software Systems
October 22, 2007, 12:00am PDT
This paper outlines an innovative approach to managing and ensuring the integrity of non-functional requirements in critical software systems. NORM, which is an acronym for Non-functional...
Provided by Iowa State University
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White Papers
State-Driven Test Generation Based on UML
October 22, 2007, 12:00am PDT
The authors report the investigation about test case generation based on UML in this paper. Since statechart diagram can capture system behaviors and at the same time can be expressed in a formal...
Provided by Iowa State University
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White Papers
Protection Against Link Errors and Failures Using Network Coding
August 31, 2010, 12:00am PDT
The authors propose a network-coding based scheme to protect multiple bidirectional unicast connections against adversarial errors and failures in a network. The network consists of a set of...
Provided by Iowa State University
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White Papers
Encoding of Network Protection Codes Against Link and Node Failures Over Finite Fields
May 12, 2009, 12:00am PDT
Link and node failures are common two fundamental problems that affect operational networks. Hence, protection of communication networks is essential to increase their reliability, performance,...
Provided by Iowa State University
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White Papers
Network Protection Codes: Providing Self-healing in Autonomic Networks Using Network Coding
December 16, 2008, 12:00am PST
Agile recovery from link failures in autonomic communication networks is essential to increase robustness, accessibility, and reliability of data transmission. However, this must be done with the...
Provided by Iowa State University
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White Papers
On Generation of Firewall Log Status Reporter (SRr) Using Perl
July 1, 2009, 12:00am PDT
Computer System Administration and Network Administration are few such areas where Practical Extraction Reporting Language (Perl) has robust utilization these days apart from Bioinformatics. The...
Provided by Iowa State University
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White Papers
A Strategy-Proof and Non-Monetary Admission Control Mechanism for Wireless Access Networks
December 31, 2010, 12:00am PST
The authors study admission control mechanisms for wireless access networks where each user has a minimum service requirement, the capacity of the access network is limited, and the access point...
Provided by Iowa State University
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White Papers
Improved Combinatorial Algorithms for Wireless Information Flow
October 7, 2010, 12:00am PDT
The work of Avestimehr et al. '07 has recently proposed a deterministic model for wireless networks and characterized the unicast capacity C of such networks as the minimum rank of the adjacency...
Provided by Iowa State University
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White Papers
Real-Time Robust Principal Components Pursuit
February 12, 2010, 12:00am PST
In the recent work of Candes et al, the problem of recovering low rank matrix corrupted by i.i.d. sparse outliers is studied and a very elegant solution, principal component pursuit, is proposed....
Provided by Iowa State University
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White Papers
A Domain-Specific Language for Programming in the Tile Assembly Model
March 5, 2009, 12:00am PST
The authors introduce a Domain-Specific Language (DSL) for creating sets of tile types for simulations of the paper Tile Assembly Model. The language defines objects known as tile templates, which...
Provided by Iowa State University
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White Papers
Network Coding-Based Protection Strategy Against Node Failures
January 29, 2009, 12:00am PST
The enormous increase in the usage of communication networks has made protection against node and link failures essential in the deployment of reliable networks. To prevent loss of data due to...
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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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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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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