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Iowa State University
(141 results)-
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
The Asymptotic Behavior of Minimum Buffer Size Requirements in Large P2P Streaming Networks
September 3, 2009, 12:00am PDT
The growth of real-time content streaming over the Internet has resulted in the use of Peer-To-Peer (P2P) approaches for scalable content delivery. In such P2P streaming systems, each peer...
Provided by Iowa State University
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White Papers
Memory Consistency Conditions for Self-Assembly Programming
September 15, 2009, 12:00am PDT
Perhaps the two most significant theoretical questions about the programming of self-assembling agents are: necessary and sufficient conditions to produce a unique terminal assembly, and error...
Provided by Iowa State University
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White Papers
Fast Algorithm for Finding Unicast Capacity of Linear Deterministic Wireless Relay Networks
September 30, 2009, 12:00am PDT
The deterministic channel model for wireless relay networks proposed by Avestimehr, Diggavi and Tse '07 has captured the broadcast and inference nature of wireless communications and has been...
Provided by Iowa State University
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White Papers
Feedback-Based Collaborative Secrecy Encoding Over Binary Symmetric Channels
September 28, 2009, 12:00am PDT
In this paper the authors propose a feedback scheme for transmitting secret messages between two legitimate parties, over an eavesdropped communication link. Relative to Wyner's traditional...
Provided by Iowa State University
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White Papers
Domain Decomposition Based High Performance Parallel Computing
October 31, 2009, 12:00am PDT
The study deals with the parallelization of finite element based Navier-Stokes codes using domain decomposition and state-of-art sparse direct solvers. There has been significant improvement in...
Provided by Iowa State University
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White Papers
Global Biofuel Expansion And The Demand For Brazilian Land: Intensification Versus Expansion
May 3, 2011, 12:00am PDT
The authors use a spatially disaggregated model of Brazilian agriculture to assess the implications of global biofuel expansion on Brazilian land usage at the regional level. This Brazilian model...
Provided by Iowa State University
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White Papers
An Effective Method for Combating Malicious Scripts Clickbots
June 29, 2009, 12:00am PDT
Online advertising has been suffering serious click fraud problem. Fraudulent publishers can generate false clicks using malicious scripts embedded in their web pages. Even widely-used security...
Provided by Iowa State University
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White Papers
Debt- Versus Equity-financing In Auction Designs
May 1, 2010, 12:00am PDT
A social planner wishes to launch a project but the contenders capable of running the project are cash-constrained and may default. To signal their capabilities, the contenders may finance their...
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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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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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Debt- Versus Equity-financing In Auction Designs
May 1, 2010, 12:00am PDT
A social planner wishes to launch a project but the contenders capable of running the project are cash-constrained and may default. To signal their capabilities, the contenders may finance their...
Provided by Iowa State University
-
White Papers
An Effective Method for Combating Malicious Scripts Clickbots
June 29, 2009, 12:00am PDT
Online advertising has been suffering serious click fraud problem. Fraudulent publishers can generate false clicks using malicious scripts embedded in their web pages. Even widely-used security...
Provided by Iowa State University
-
White Papers
Global Biofuel Expansion And The Demand For Brazilian Land: Intensification Versus Expansion
May 3, 2011, 12:00am PDT
The authors use a spatially disaggregated model of Brazilian agriculture to assess the implications of global biofuel expansion on Brazilian land usage at the regional level. This Brazilian model...
Provided by Iowa State University
-
White Papers
Domain Decomposition Based High Performance Parallel Computing
October 31, 2009, 12:00am PDT
The study deals with the parallelization of finite element based Navier-Stokes codes using domain decomposition and state-of-art sparse direct solvers. There has been significant improvement in...
Provided by Iowa State University
-
White Papers
Feedback-Based Collaborative Secrecy Encoding Over Binary Symmetric Channels
September 28, 2009, 12:00am PDT
In this paper the authors propose a feedback scheme for transmitting secret messages between two legitimate parties, over an eavesdropped communication link. Relative to Wyner's traditional...
Provided by Iowa State University
-
White Papers
Fast Algorithm for Finding Unicast Capacity of Linear Deterministic Wireless Relay Networks
September 30, 2009, 12:00am PDT
The deterministic channel model for wireless relay networks proposed by Avestimehr, Diggavi and Tse '07 has captured the broadcast and inference nature of wireless communications and has been...
Provided by Iowa State University
-
White Papers
Memory Consistency Conditions for Self-Assembly Programming
September 15, 2009, 12:00am PDT
Perhaps the two most significant theoretical questions about the programming of self-assembling agents are: necessary and sufficient conditions to produce a unique terminal assembly, and error...
Provided by Iowa State University
-
White Papers
The Asymptotic Behavior of Minimum Buffer Size Requirements in Large P2P Streaming Networks
September 3, 2009, 12:00am PDT
The growth of real-time content streaming over the Internet has resulted in the use of Peer-To-Peer (P2P) approaches for scalable content delivery. In such P2P streaming systems, each peer...
Provided by Iowa State University
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