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ICST
(263 results)-
White Papers
QoS-Aware Ant Routing With Colored Pheromones in Wireless Mesh Networks
September 25, 2008, 12:00am PDT
Inspired by the collective foraging behavior of specific ant species, ant-based routing algorithms are able to find optimal or near optimal packet routes for Wireless Mesh Net-works. Ant-based...
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White Papers
Programming in Mobile Ad Hoc Networks
November 19, 2008, 12:00am PST
The possibility for spontaneous ad hoc networks between mobile devices has been increasing as small devices become more capable of hosting useful networked applications. These applications face...
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White Papers
Challenges of Implementing Cyber-Physical Security Solutions in Body Area Networks
April 3, 2009, 12:00am PDT
Cyber-physical approach to securing Body Area Networks (BANs) provides solutions that are plug-n-play and trans-parent to its users. These Cyber-Physical Security Solutions (CPSS) actively involve...
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White Papers
A Survey on Distributed Approaches to Graph Based Reputation Measures
October 26, 2007, 12:00am PDT
Reputation systems are indispensable for the operation of Internet mediated services, electronic markets, document ranking systems, P2P networks and Ad Hoc networks. Here the authors' survey...
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White Papers
Toward Intelligent Support of Authoring Machinima Media Content: Story and Visualization
January 10, 2008, 12:00am PST
The Internet and the availability of authoring tools have enabled a greater community of media content creators, including nonexperts. However, while media authoring tools often make it...
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White Papers
COOJA/MSPSim: Interoperability Testing for Wireless Sensor Networks
January 1, 2009, 12:00am PST
Wireless sensor networks are moving towards emerging standards such as IP, ZigBee and WirelessHART which makes interoperability testing important. Interoperability testing is performed today...
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White Papers
Delay Aware, Reconfigurable Security for Embedded Systems
June 13, 2007, 12:00am PDT
Wireless embedded systems, especially life-critical body-area networks, need security in order to prevent unauthorized and malicious users from injecting traffic and accessing confidential data....
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White Papers
User and Network Interplay in Internet Telemicroscopy
October 12, 2007, 12:00am PDT
Remote access of electron microscopes over the Internet (i.e., Telemicroscopy) is a unique network-dependent immersive multimedia application. It demands high-resolution (2D and 3D) video image...
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White Papers
Evaluation of Robustness in Time Synchronization for Sensor Networks
December 13, 2007, 12:00am PST
In sensor networks, time synchronization between sensor nodes is important because it affects not only the efficiency of information gathering but also energy consumption. Since sensor network...
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White Papers
M-TEEVE: Real-Time 3D Video Interaction and Broadcasting Framework for Mobile Devices
May 29, 2009, 12:00am PDT
3D video is an emerging technology that promises immersive experiences in a truly seamless environment. This paper presents a new proxy-based framework to extend the 3D video experience to mobile...
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White Papers
Implementation of Dynamic Channel Switching on IEEE 802.11-Based Wireless Mesh Networks
November 19, 2008, 12:00am PST
Interference makes it difficult for a wireless network to provide robust performance and could sometimes lead to transient failures. Dynamic Channel Switching (DCS) allows a wireless Network...
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White Papers
Samera:A Scalable and Memory-Efficient Feature Extraction Algorithm for Short 3D Video Segments
May 29, 2009, 12:00am PDT
Tele-immersive systems, are growing in popularity and sophistication. They generate 3D video content in large scale, yielding challenges for executing data-mining tasks. Some of the tasks include...
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White Papers
Context-Aware Fault Tolerance in Migratory Services
July 25, 2008, 12:00am PDT
Mobile ad hoc networks can be leveraged to provide ubiquitous services capable of acquiring, processing, and sharing real-time information from the physical world. Unlike Internet services, these...
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White Papers
Verification and Semantic Parallelization of Goal-driven Autonomous Software
September 25, 2008, 12:00am PDT
Future space missions such as the Mars Science Laboratory demand the engineering of some of the most complex man rated autonomous software systems. According to some recent estimates, the...
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White Papers
Exploiting Parallel Networks Using Dynamic Channel Scheduling
November 19, 2008, 12:00am PST
Many researchers have been focusing on the outcomes and consequences of the rapid increase and proliferation of mobile wireless technologies. If it is not already the case, it will soon be rare...
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White Papers
Supporting Proactive Application Event Notification to Improve Sensor Network Performance
September 9, 2010, 12:00am PDT
As wireless sensor networks gain in popularity, many deployments are posing new challenges due to their diverse topologies and resource constraints. Previous work has shown the advantage of...
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White Papers
Minimizing 802.11 Interference on Zigbee Medical Sensors
April 3, 2008, 12:00am PDT
The rapidly growing market for wireless technologies (Body LAN, cellular and Wireless LAN) in medical environments has led to a critical need for effective cable replacement solutions. This will...
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White Papers
Empirical-Based Analysis of a Cooperative Location-Sensing System
October 30, 2007, 12:00am PDT
The authors have designed a novel positioning system, the Cooperative Location-sensing System (CLS) that employs the peer-to-peer paradigm and a probabilistic framework to estimate the position of...
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White Papers
Towards Comparable Simulations of Cooperating Objects and Wireless Sensor Networks
October 23, 2009, 12:00am PDT
Simulators are indispensable tools to support the development and testing of cooperating objects such as Wireless Sensor Networks (WSN). However, it is often not possible to compare the results of...
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White Papers
On the Performance of Expected Transmission Count (ETX) for Wireless Mesh Networks
October 24, 2008, 12:00am PDT
The Expected Transmission Count (ETX) metric is an advanced routing metric for finding high-throughput paths in multi-hop wireless networks. However, it has been determined that ETX is not immune...
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White Papers
A Site-Specific Indoor Link Model for Realistic Wireless Network Simulations
March 25, 2011, 12:00am PDT
Compared to testbeds, the efficiency and accuracy of wireless networking simulations are constantly questioned by the network community. It is widely accepted today that the current network...
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Whitepapers
Always One/Zero Malicious User Detection in Cooperative Sensing Using the FCME Method
June 20, 2012, 12:00am PDT
In Cognitive Radio (CR) systems, cooperative sensing is advantageous when compared to single user detection. Cooperative sensing means that multiple CRs detect the spectrum holes collaboratively....
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Whitepapers
Optimal Cost-Based Strategies in Mobile Network Offloading
June 20, 2012, 12:00am PDT
This paper examines potential deployment strategies for mobile operators to satisfy the high anticipated data traffic volume in their mobile networks. The mobile network offloading is analyzed...
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Whitepapers
Dynamic Valuation Function Based Definition of the Primary Spectrum User in Collocated Cellular Networks
June 20, 2012, 12:00am PDT
The authors propose to use generalization of a second price VCG auction to dynamically allocate shared radio resources among collocated, equally prioritized mobile network operators in multi...
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Whitepapers
Availability Assessment of TVWS for Wi-Fi-Like Secondary System: A Case Study
June 20, 2012, 12:00am PDT
This paper presents a countrywide assessment of TV whitespace availability for Wi-Fi-like secondary system, using the Republic of Macedonia as an example study area. The presented methodology is...
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Whitepapers
Guaranteed Service and Delay-Constrained Capacity of a Multi-Channel Cognitive Secondary Network
June 20, 2012, 12:00am PDT
In this paper, the authors consider a multi-channel cognitive radio system serving a primary network and a secondary network, and analyze the quality of service and delay-constrained capacity of...
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Whitepapers
Comparison of Underlay and Overlay Spectrum Sharing Strategies in MISO Cognitive Channels
June 20, 2012, 12:00am PDT
The authors consider an extension of the cognitive radio channel model in which the secondary transmitter has to obtain ("Learn") the primary message in a first phase rather than having non-causal...
Provided by ICST
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Whitepapers
Spectrum Availability Recheck Scheme (SARS) for Cognitive Radio Systems With Mobility
June 20, 2012, 12:00am PDT
The authors consider the change of spectrum availability which is caused by the mobility of a Cognitive Radio (CR) user. Given that the CR user should not interfere with a Primary User (PU), it...
Provided by ICST
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Whitepapers
Exploiting Polarization for Spectrum Sensing in Cognitive SatComs
June 20, 2012, 12:00am PDT
Exploring new techniques for Spectrum Sensing (SS), which can detect the weak primary signals instantly, has been an important research challenge. In this paper, the problem of enhancing SS...
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Whitepapers
Interference Management Strategy for Deploying Energy Efficient Femtocells Network
June 20, 2012, 12:00am PDT
In this paper, the authors propose a new interference management scheme for femtocells systems based on the cooperation and inter-handover techniques between competing cells in the context of...
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Whitepapers
An Analysis of Competition among Autonomous Devices in Multichannel Cognitive Radios Networks
June 20, 2012, 12:00am PDT
The authors investigate an autonomous Opportunistic Spectrum Access (OSA) strategy for a multichannel Cognitive Radio (CR) network, where two or more autonomous CRs sense the channels sequentially...
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Whitepapers
Enhanced Energy Detector Via Algebraic Approach for Spectrum Sensing in Cognitive Radio Networks
June 20, 2012, 12:00am PDT
This paper deals with spectrum sensing techniques used to efficient utilization of limited spectrum resource. The most used technique is the energy detector as it is the simplest one for real time...
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Whitepapers
Evaluation of Multi-Objective Optimizers for Cognitive Radio Using Psychometric Methods
June 20, 2012, 12:00am PDT
Item Response Models (IRMs) developed for use in fields such as education and psychology are applicable to cognitive radio testing due to parallels between cognitive radio and human cognition...
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Whitepapers
Empirical Modeling of Public Safety Voice Traffic in the Land Mobile Radio Band
June 20, 2012, 12:00am PDT
An RF measurement system with high time resolution is implemented to determine the statistical characteristics of various channels in the Land Mobile Radio bands. The applicability of simple...
Provided by ICST
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Whitepapers
Blind Spectrum Detector for Cognitive Radio Using Compressed Sensing and Symmetry Property of the Second Order Cyclic Autocorrelation
June 20, 2012, 12:00am PDT
Based on the use of compressed sensing applied to recover the sparse Cyclic Autocorrelation (CA) in the cyclic frequencies domain on the one hand, and by exploiting the symmetry property of the...
Provided by ICST
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Whitepapers
Spectrum Occupancy Measurements and Analysis Methods on the 2.45 GHz ISM Band
June 20, 2012, 12:00am PDT
The authors performed spectrum occupancy measurements on the 2.45 GHz Industrial, Scientific and Medical (ISM) band in the area of Oulu, Finland. The comprehensive measurement campaign consisted...
Provided by ICST
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Whitepapers
Average Throughput in AWGN Cognitive Fading Interference Channel With Multiple Secondary Pairs
June 20, 2012, 12:00am PDT
The authors consider the Additive White Gaussian Noise (AWGN) cognitive fading interference channel consisting of one primary and multiple secondary transmitter-receiver pairs. The secondary...
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Whitepapers
Reliability of a Radio Environment Map: Case of Spatial Interpolation Techniques
June 20, 2012, 12:00am PDT
Recent advances in radio environmental mapping enable novel, practical and efficient cognitive radio and dynamic spectrum access solutions. A crucial aspect of such solutions is to ensure the...
Provided by ICST
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Whitepapers
Performance Analysis of Eigenvalue Based Spectrum Sensing Under Frequency Selective Channels
June 20, 2012, 12:00am PDT
Detecting primary signals with very low Signal-to-Noise Ratio (SNR) is a very important problem in Cognitive Radio (CR) systems. Small parameter uncertainties are unavoidable in any practical...
Provided by ICST
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Whitepapers
Controlling Aggregate Interference Under Adjacent Channel Interference Constraint in TV White Space
June 20, 2012, 12:00am PDT
TV White space, where secondary systems can be deployed inside the TV coverage area and utilize the geographically unoccupied TV channels, is considered as a promising solution to relieve the...
Provided by ICST
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Whitepapers
Evaluation of IMT-Advanced Scenarios Using the Open Wireless Network Simulator
March 19, 2010, 12:00am PDT
With the commence of the IMT-Advanced (IMT-A) submission and evaluation process, the vague term "4th generation wireless networks" moves towards existing standards, technologies and hardware. A...
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Whitepapers
Broadcast Video Streaming in Cellular Networks: An Adaptation Framework for Channel, Video and AL-FEC Rates Allocation
April 19, 2010, 12:00am PDT
Video streaming is one of the most important applications that will make use of the high data rates offered by 4G networks. The current video transport techniques are already very advanced, and...
Provided by ICST
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Whitepapers
SINR Balancing in the Downlink of Cognitive Radio Networks With Imperfect Channel Knowledge
September 14, 2010, 12:00am PDT
In this paper, the authors consider the problem of Signal-to-Interference-plus-Noise Ratio (SINR) balancing in the downlink of Cognitive Radio (CR) networks while simultaneously keeping...
Provided by ICST
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Whitepapers
Multiple Description Source Coding for Cognitive Radio Systems
September 14, 2010, 12:00am PDT
Multiple Description Coding (MDC) is applied for delay-sensitive data traffic to alleviate interruptions caused by primary users in cognitive radio systems. For Gaussian source, a simplified...
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Whitepapers
Standard Recognising Self Organizing Map Based Cognitive Radio Transceiver
September 14, 2010, 12:00am PDT
Cognitive Radio (CR) Systems have transceivers with the ability to adjust their operating parameters after observing the results in order to decide to operate in a specific radio configuration,...
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Whitepapers
Blind Standard Identification With Bandwidth Shape and GI Recognition Using USRP Platforms and SDR4all Tools
September 14, 2010, 12:00am PDT
In this paper, focusing on identifying standards blindly, the authors propose a bandwidth shape sensor and a GI (guard interval) sensor using USRP (Universal Software Radio Peripheral) platforms...
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Whitepapers
Performance of Deterministic Local Sensing Aggregation Under Interference
September 14, 2010, 12:00am PDT
In this paper, the authors evaluate the delay and sensing performance of distributed cooperative sensing in wireless sensor networks assisting cognitive secondary operation. They propose a time...
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Whitepapers
The BCP: An Integrated Communication and Collaboration Platform for Biosecurity Research and Incident Response Workgroups
April 6, 2012, 12:00am PDT
The authors present the design and implementation of an advanced collaboration platform that integrates life-size video conferencing and group interactions with a large shared workspace. The...
Provided by ICST
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Whitepapers
DCDIDP: A Distributed, Collaborative, and Data-Driven Intrusion Detection and Prevention Framework for Cloud Computing Environments
October 18, 2011, 12:00am PDT
With the growing popularity of cloud computing, the exploitation of possible vulnerabilities grows at the same pace; the distributed nature of the cloud makes it an attractive target for potential...
Provided by ICST
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Whitepapers
CONFLuEnCE: Implementation and Application Design
October 18, 2011, 12:00am PDT
Data streams have become pervasive and data production rates are increasing exponentially, driven by advances in technology, for example the proliferation of sensors, smart phones, and their...
Provided by ICST
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Whitepapers
OTPM: Failure Handling in Data-Intensive Analytical Processing
October 18, 2011, 12:00am PDT
Parallel processing is the key to speedup performance and to achieve high throughput in processing large scale data analytical workloads. However, failures of nodes involved in the analytical...
Provided by ICST
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Whitepapers
The ABA Problem in Multicore Data Structures With Collaborating Operations
October 18, 2011, 12:00am PDT
An increasing number of modern real-time systems and the nowadays ubiquitous multicore architectures demand the application of programming techniques for reliable and efficient concurrent...
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Whitepapers
Overhearing Conversations in Global Software Engineering - Requirements and an Implementation
October 18, 2011, 12:00am PDT
Conversations between colleagues in collaborative software engineering are important for coordinating work, sharing knowledge and creating knowledge. Overhearing conversations of others is useful...
Provided by ICST
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Whitepapers
Bootstrapping Operation-Level Web Service Ontology: A Bottom-Up Approach
October 18, 2011, 12:00am PDT
Ontology is the key ingredient of semantic Web service technologies, which support systematic management of Web services, such as automatic service discovery, service composition, and change...
Provided by ICST
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Whitepapers
Data Management Support Via Spectrum Perturbation-Based Subspace Classification in Collaborative Environments
October 18, 2011, 12:00am PDT
Data management support to enable effective and efficient information sharing in collaborative environments is critical, especially in semantics based search and retrieval. In this paper, a novel...
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Whitepapers
An Exploratory Study on Open Conversation Spaces in Software Engineering
October 18, 2011, 12:00am PDT
Software engineering is by nature a highly collaborative activity and being able to collaborate effectively is a key factor for project success. However, collaborating effectively in Global...
Provided by ICST
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Whitepapers
A Content-Aware Collaborative Accessing Model in Ad Hoc Networks
October 18, 2011, 12:00am PDT
Reducing the transmission cost is one of the most important issues in multi-hop ad-hoc networks. Considerable research has been done on efficient routing and data accessing algorithms. However,...
Provided by ICST
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Whitepapers
Provenance for Collaboration: Detecting Suspicious Behaviors and Assessing Trust in Information
October 18, 2011, 12:00am PDT
Data collaborations allow users to draw upon diverse resources to solve complex problems. While collaborations enable a greater ability to manipulate data and services, they also create new...
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Whitepapers
Memory-Enabled Autonomic Resilient Networking
October 18, 2011, 12:00am PDT
It is becoming increasingly challenging for the contemporary Internet to satisfy the explosion in networking services and applications with their widely diverse and dynamic QoS requirements and...
Provided by ICST
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Whitepapers
Towards a Personalized Trust Architecture
October 18, 2011, 12:00am PDT
Advances in next generations distributed cyberspace technologies are expected to evolve a global cyberspace marketplace for resource and services. In marketplaces, particularly with the autonomy...
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Whitepapers
A Test-Bed for the Evaluation of Business Process Prediction Techniques
October 18, 2011, 12:00am PDT
Business process prediction technologies are being increasingly used by organisations to provide timely feedback to their customers and improve their overall productivity. In order to provide...
Provided by ICST
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Whitepapers
A Trust-Based Approach to Mitigate Rerouting Attacks
October 18, 2011, 12:00am PDT
One of the ways a malicious router can launch a Denial of Service (DoS) attack is by rerouting IP-packets of other destinations to the victim node. In this paper, based on the observed traffic...
Provided by ICST
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Whitepapers
A Distributed Web Browser as a Platform for Running Collaborative Applications
October 18, 2011, 12:00am PDT
Most existing collaborative applications on the Web require centralized servers for storing shared data and relaying communication messages among browsers. This means that users of these...
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Whitepapers
Mobile XMPP and Cloud Service Collaboration: An Alliance for Flexible Disaster Management
October 18, 2011, 12:00am PDT
Recent crises like the Fukushima incident in Japan show that there is a demand for flexible and easy-to-use communication and sensor systems to support post-disaster management (i.e., the...
Provided by ICST
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Whitepapers
Featuring Automatic Adaptivity Through Workflow Enactment and Planning
October 18, 2011, 12:00am PDT
Process Management Systems (PMSs, a.k.a. Workflow Management Systems - WfMSs) are currently more and more used as a supporting tool to coordinate the enactment of processes. In real world...
Provided by ICST
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Whitepapers
REUSES: Questionnaire-Driven Design for the Automatic Generation of Web-Based Collaborative Applications
October 18, 2011, 12:00am PDT
In this paper, the authors present a questionnaire-driven collaborative design methodology for the automatic generation of collaborative applications. The methodology is based on a repository of...
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Whitepapers
On Data Provenance in Group-Centric Secure Collaboration
October 18, 2011, 12:00am PDT
In this paper, the authors explore data provenance in a group-centric secure collaboration environment. In collaborations, participating organizations are likely to want certain trustworthiness on...
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Whitepapers
Consistent Replication in Distributed Multi-Tier Architectures
October 18, 2011, 12:00am PDT
Replication is commonly used to address the scalability and availability requirements of collaborative web applications in domains such as computer supported cooperative work, social networking,...
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Whitepapers
Mitigating the Cognitive Overload of Contemporary Argumentation-Based Collaboration Settings
October 18, 2011, 12:00am PDT
Current advances in computing and Internet technologies, together with the advent of the Web 2.0 era, have resulted in the development of a plethora of online, publicly available environments such...
Provided by ICST
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Whitepapers
Protocol for Mitigating the Risk of Hijacking Social Networking Sites
October 18, 2011, 12:00am PDT
The proliferation of social and collaborative media has been accompanied by an increased level of cyber attacks on social networking and collaboration sites. One serious type of attack is session...
Provided by ICST
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Whitepapers
Supporting Mood Awareness in Collaborative Settings
September 20, 2011, 12:00am PDT
Affective aspects during collaboration can be exploited as triggers for reflection, yet current tools usually ignore these aspects. In this paper, the authors present a set of design choices to...
Provided by ICST
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Whitepapers
Collaborative Authoring of Adaptive Learning Resources: Opportunities and Challenges
October 18, 2011, 12:00am PDT
One issue regarding adaptive learning systems is the provision of learning resources that consist of domain knowledge, pedagogical knowledge with adaptation rules, and learning content. Challenges...
Provided by ICST
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Whitepapers
Automatic Protocol Signature Generation Framework for Deep Packet Inspection
May 20, 2011, 12:00am PDT
The authors present an automatic application protocol signature generating framework for Deep Packet Inspection (DPI) techniques with performance evaluation. They propose to utilize algorithms...
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Whitepapers
Relay and Jammer Cooperation as a Coalitional Game in Secure Cooperative Wireless Networks
May 16, 2011, 12:00am PDT
In this paper, the authors investigate cooperation of conventional relays and friendly jammers subject to secrecy constraints for cooperative networks. In order to obtain an optimized secrecy...
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Whitepapers
The Jamming Game in an OFDM Setting
May 16, 2011, 12:00am PDT
Orthogonal Frequency Division Multiplexing (OFDM) has been chosen as the physical layer solution for a large variety of emerging and future wireless networks, due to its robustness in coping with...
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Whitepapers
Secure Distributed Lossless Compression With Side Information at the Eavesdropper
May 16, 2011, 12:00am PDT
This paper investigates the problem of secure distributed lossless compression in the presence of arbitrarily correlated side information at an eavesdropper. This scenario consists of two encoders...
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Whitepapers
Physical Layer Authentication Over an OFDM Fading Wiretap Channel
May 16, 2011, 12:00am PDT
Precise channel estimation at the physical layer allows to authenticate the source of a message in a wireless environment without the need of a pre-shared secret key based on the rapid spatial...
Provided by ICST
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Whitepapers
MAC With Partially Cooperating Encoders and Security Constraints
May 16, 2011, 12:00am PDT
The authors study a special case of Willems's two-user multiaccess channel with partially cooperating encoders from security perspective. This model differs from Willems's setup in that only one...
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Whitepapers
On the Multi-Antenna Wiretap Channel With Delayed CSI at the Transmitter
May 16, 2011, 12:00am PDT
The Multi-Input Single-Output (MISO) Gaussian wiretap channel with delayed Channel State Information (CSI) available at the transmitter and at the eavesdropper is investigated. This scenario may...
Provided by ICST
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Whitepapers
Capacity-Based Random Codes Cannot Achieve Strong Secrecy Over Symmetric Wiretap Channels
May 16, 2012, 12:00am PDT
In this paper, the authors investigate the limitations of capacity-based random code constructions for the wiretap channel, i.e., constructions that associate to each confidential message a...
Provided by ICST
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