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Technical University of Crete
(18 results)-
White Papers
Analysis of the Perceived VoIP Quality Under Various Wireless Network Conditions
February 26, 2010, 12:00am PST
This paper focuses on the comparative statistical analysis of the performance of VoIP calls under various situations, namely, during a handover, under different background traffic conditions...
Provided by Technical University of Crete
-
White Papers
Querying XML Data With SPARQL
January 31, 2010, 12:00am PST
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability of XML in the...
Provided by Technical University of Crete
-
White Papers
Design and Implementation of a Trust-Aware Routing Protocol for Large WSNs
July 1, 2010, 12:00am PDT
The domain of Wireless Sensor Networks (WSNs) applications is increasing widely over the last few years. As this new type of networking is characterized by severely constrained node resources,...
Provided by Technical University of Crete
-
Whitepapers
The Hardness of the Functional Orientation 2-Color Problem
October 9, 2012, 12:00am PDT
The authors consider the Functional Orientation 2-Color problem, which was introduced by Valiant in his seminal paper on holographic algorithms. For this decision problem, Valiant gave a...
Provided by Technical University of Crete
-
Whitepapers
Globally Reasoning About Localised Security Policies in Distributed Systems
May 29, 2012, 12:00am PDT
In this paper, the authors aim at establishing proper ways for model checking the global security of distributed systems, which are designed consisting of set of localised security policies that...
Provided by Technical University of Crete
-
Whitepapers
Low-Latency Video Transmission Over High-Speed WPANs Based on Low-Power Compression
January 11, 2010, 12:00am PST
In the last few years a number of high throughput Wireless Personal Area Networks (WPANs) have appeared, such as the IEEE 802.15.3c standard. These networks have low power data transmitters and...
Provided by Technical University of Crete
-
Whitepapers
Mixed-Integer Linear Programming in the Analysis of Trivium and Ktantan
November 29, 2012, 12:00am PST
In this paper, the authors present a rather new approach to apply mixed-integer optimization to the cryptanalysis of cryptographic primitives. They focus on the stream cipher Trivium, that has...
Provided by Technical University of Crete
-
Whitepapers
PRINCE - A Low-Latency Block Cipher for Pervasive Computing Applications
September 13, 2012, 12:00am PDT
This paper presents a block cipher that is optimized with respect to latency when implemented in hardware. Such ciphers are desirable for many future pervasive applications with real-time security...
Provided by Technical University of Crete
-
Whitepapers
An All-In-One Approach to Diffential Cryptanalysis for Small Block Ciphers
July 17, 2012, 12:00am PDT
The authors present a framework that unifies several standard differential techniques. This unified view allows users to consider many, potentially all, output differences for a given input...
Provided by Technical University of Crete
-
Whitepapers
On the Distribution of Linear Biases: Three Instructive Examples
May 30, 2012, 12:00am PDT
Despite the fact that the authors evidently have very good block ciphers at hand today, some fundamental questions on their security are still unsolved. One such fundamental problem is to...
Provided by Technical University of Crete
-
Whitepapers
Evaluating the Efficiency of Shortcut Span Protection
February 1, 2010, 12:00am PST
This paper presents a comparison of various recovery methods in terms of capacity efficiency with the underlying aim of reducing control plane load. In particular, a method where recovery requests...
Provided by Technical University of Crete
-
Whitepapers
Towards 100 Gigabit Carrier Ethernet Transport Networks
March 1, 2010, 12:00am PST
Ethernet as a transport technology has, up to now, lacked the features such as network layer architecture, customer separation and manageability that carriers require for wide-scale deployment....
Provided by Technical University of Crete
-
Whitepapers
Evaluation of Restoration Mechanisms for Future Services Using Carrier Ethernet
May 1, 2010, 12:00am PDT
In this paper, the authors evaluate and classify future service according to their requirements for delay, loss and bandwidth. The most demanding services include IPTV in different forms, hence...
Provided by Technical University of Crete
-
Whitepapers
Hierarchical Downlink Resource Management Framework for OFDMA based WiMAX Systems
March 11, 2008, 12:00am PDT
IEEE 802.16, known as WiMAX, has received much attention recently for its capability to support multiple types of applications with diverse QoS requirements. Beyond what the standard has defined,...
Provided by Technical University of Crete
-
White Papers
Backscattering Improvement of UHF RFID Tag Efficiency
October 27, 2009, 12:00am PDT
In this paper, a tag-load selection methodology is proposed for optimized tag-to-reader backscatter communication. Derivation of the method is based on antenna/communication theory and applies to...
Provided by Technical University of Crete
-
White Papers
A UHF Radio Frequency Identification (RFID) System for Healthcare: Design and Implementation
November 4, 2010, 12:00am PDT
This paper presents a customized design of a UHF Radio Frequency IDentification (RFID) system to be installed at the Bank Of Cyprus Oncology Center (BOCOC) in Cyprus. This is a pilot project that...
Provided by Technical University of Crete
-
White Papers
On the Design of Passive RFID Tags for ASK Modulation
May 26, 2011, 12:00am PDT
Design of passive UHF RFID tag for ASK modulation is investigated. It is shown that tag antenna structural mode strongly affects the tag's backscattered field, shaping the phase and magnitude of...
Provided by Technical University of Crete
-
White Papers
Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based Testbed
March 31, 2009, 12:00am PDT
Experimental results on the well-known cooperating relaying schemes, Amplify-and-Forward (AF), Detect-and-Forward (DF), Cooperative Maximum Ratio Combining (CMRC), and Distributed Space-Time...
Provided by Technical University of Crete
-
Whitepapers
Hierarchical Downlink Resource Management Framework for OFDMA based WiMAX Systems
March 11, 2008, 12:00am PDT
IEEE 802.16, known as WiMAX, has received much attention recently for its capability to support multiple types of applications with diverse QoS requirements. Beyond what the standard has defined,...
Provided by Technical University of Crete
-
Whitepapers
Evaluation of Restoration Mechanisms for Future Services Using Carrier Ethernet
May 1, 2010, 12:00am PDT
In this paper, the authors evaluate and classify future service according to their requirements for delay, loss and bandwidth. The most demanding services include IPTV in different forms, hence...
Provided by Technical University of Crete
-
Whitepapers
Towards 100 Gigabit Carrier Ethernet Transport Networks
March 1, 2010, 12:00am PST
Ethernet as a transport technology has, up to now, lacked the features such as network layer architecture, customer separation and manageability that carriers require for wide-scale deployment....
Provided by Technical University of Crete
-
Whitepapers
Evaluating the Efficiency of Shortcut Span Protection
February 1, 2010, 12:00am PST
This paper presents a comparison of various recovery methods in terms of capacity efficiency with the underlying aim of reducing control plane load. In particular, a method where recovery requests...
Provided by Technical University of Crete
-
Whitepapers
On the Distribution of Linear Biases: Three Instructive Examples
May 30, 2012, 12:00am PDT
Despite the fact that the authors evidently have very good block ciphers at hand today, some fundamental questions on their security are still unsolved. One such fundamental problem is to...
Provided by Technical University of Crete
-
Whitepapers
An All-In-One Approach to Diffential Cryptanalysis for Small Block Ciphers
July 17, 2012, 12:00am PDT
The authors present a framework that unifies several standard differential techniques. This unified view allows users to consider many, potentially all, output differences for a given input...
Provided by Technical University of Crete
-
Whitepapers
PRINCE - A Low-Latency Block Cipher for Pervasive Computing Applications
September 13, 2012, 12:00am PDT
This paper presents a block cipher that is optimized with respect to latency when implemented in hardware. Such ciphers are desirable for many future pervasive applications with real-time security...
Provided by Technical University of Crete
-
Whitepapers
Mixed-Integer Linear Programming in the Analysis of Trivium and Ktantan
November 29, 2012, 12:00am PST
In this paper, the authors present a rather new approach to apply mixed-integer optimization to the cryptanalysis of cryptographic primitives. They focus on the stream cipher Trivium, that has...
Provided by Technical University of Crete
-
Whitepapers
Low-Latency Video Transmission Over High-Speed WPANs Based on Low-Power Compression
January 11, 2010, 12:00am PST
In the last few years a number of high throughput Wireless Personal Area Networks (WPANs) have appeared, such as the IEEE 802.15.3c standard. These networks have low power data transmitters and...
Provided by Technical University of Crete
-
Whitepapers
Globally Reasoning About Localised Security Policies in Distributed Systems
May 29, 2012, 12:00am PDT
In this paper, the authors aim at establishing proper ways for model checking the global security of distributed systems, which are designed consisting of set of localised security policies that...
Provided by Technical University of Crete
-
Whitepapers
The Hardness of the Functional Orientation 2-Color Problem
October 9, 2012, 12:00am PDT
The authors consider the Functional Orientation 2-Color problem, which was introduced by Valiant in his seminal paper on holographic algorithms. For this decision problem, Valiant gave a...
Provided by Technical University of Crete
-
White Papers
Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based Testbed
March 31, 2009, 12:00am PDT
Experimental results on the well-known cooperating relaying schemes, Amplify-and-Forward (AF), Detect-and-Forward (DF), Cooperative Maximum Ratio Combining (CMRC), and Distributed Space-Time...
Provided by Technical University of Crete
-
White Papers
On the Design of Passive RFID Tags for ASK Modulation
May 26, 2011, 12:00am PDT
Design of passive UHF RFID tag for ASK modulation is investigated. It is shown that tag antenna structural mode strongly affects the tag's backscattered field, shaping the phase and magnitude of...
Provided by Technical University of Crete
-
White Papers
A UHF Radio Frequency Identification (RFID) System for Healthcare: Design and Implementation
November 4, 2010, 12:00am PDT
This paper presents a customized design of a UHF Radio Frequency IDentification (RFID) system to be installed at the Bank Of Cyprus Oncology Center (BOCOC) in Cyprus. This is a pilot project that...
Provided by Technical University of Crete
-
White Papers
Backscattering Improvement of UHF RFID Tag Efficiency
October 27, 2009, 12:00am PDT
In this paper, a tag-load selection methodology is proposed for optimized tag-to-reader backscatter communication. Derivation of the method is based on antenna/communication theory and applies to...
Provided by Technical University of Crete
-
White Papers
Design and Implementation of a Trust-Aware Routing Protocol for Large WSNs
July 1, 2010, 12:00am PDT
The domain of Wireless Sensor Networks (WSNs) applications is increasing widely over the last few years. As this new type of networking is characterized by severely constrained node resources,...
Provided by Technical University of Crete
-
White Papers
Querying XML Data With SPARQL
January 31, 2010, 12:00am PST
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability of XML in the...
Provided by Technical University of Crete
-
White Papers
Analysis of the Perceived VoIP Quality Under Various Wireless Network Conditions
February 26, 2010, 12:00am PST
This paper focuses on the comparative statistical analysis of the performance of VoIP calls under various situations, namely, during a handover, under different background traffic conditions...
Provided by Technical University of Crete
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