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University of Cincinnati
(20 results)-
White Papers
Graph Theoretic Approach to QoS-Guaranteed Spectrum Allocation in Cognitive Radio Networks
November 16, 2008, 12:00am PST
This paper proposes a novel graph theoretic matching algorithm to model the dynamic channel allocation problem in cognitive radio networks. In the past, no research work has considered both the...
Provided by University of Cincinnati
-
White Papers
Dead Reckoning in Mobile Ad Hoc Networks
January 1, 2010, 12:00am PST
A predictive model-based mobility tracking method, called dead reckoning, is proposed for mobile ad hoc networks. It disseminates both location and movement models of mobile nodes in the network...
Provided by University of Cincinnati
-
White Papers
The Lonely NATed Node
January 1, 2011, 12:00am PST
In this paper the authors take the position that current research in the area of distributed systems has all but forgotten about one of the largest collective Internet resources - the NATed node....
Provided by University of Cincinnati
-
White Papers
Piconet Interference Modeling and Performance Evaluation of Bluetooth MAC Protocol
January 1, 2011, 12:00am PST
The emergence of Bluetooth as a default radio interface has allowed handheld electronic devices to be instantly interconnected as ad-hoc networks. These short range ad-hoc wireless networks called...
Provided by University of Cincinnati
-
White Papers
SSA - Superblock-Based Storage Architecture: A New Approach for Boosting I/O Performance
January 1, 2011, 12:00am PST
Many of the new I/O architectures like DCD, RAPID cache and LFS focus on improving the disk write performance. However, many I/O intensive applications are read-dominated or generate substantial...
Provided by University of Cincinnati
-
White Papers
UCFS - A Novel User-Space, High Performance, Customized File System For Web Proxy Servers
January 1, 2011, 12:00am PST
Web proxy caching servers play a key role in today's Web infrastructure. Previous studies have shown that disk I/O is one of the major performance bottlenecks of proxy servers. Most conventional...
Provided by University of Cincinnati
-
White Papers
A Performance Study of E-Mail Services
January 1, 2011, 12:00am PST
This paper presents a performance study of the ISP (Internet Service Provider) mail servers. By using the SPECmail2001 benchmark to test a commercial mail service MDaemon 5.0.1, the authors...
Provided by University of Cincinnati
-
White Papers
A User-Level, Temporary File System for Large Web Servers
January 1, 2011, 12:00am PST
Several recent studies have pointed out that file I/Os can be a major performance bottleneck for some large web servers. Large I/O buffer caches often do not work effectively for large servers....
Provided by University of Cincinnati
-
White Papers
The Design and Implementation of RAPID-Cache: A Reliable, Inexpensive, and High-Performance I/O Cache for Linux
January 1, 2011, 12:00am PST
Most file system performance enhancing techniques, such as the I/O buffer cache and the Log-structured File Systems (LFS), relying on caching data in volatile RAM for a period of time before...
Provided by University of Cincinnati
-
White Papers
Cryptanalysis of Rational Multivariate Public Key Cryptosystems
September 13, 2007, 12:00am PDT
In 1989, Tsujii, Fujioka, and Hirayama proposed a family of multivariate public key cryptosystems, where the public key is given as a set of multivariate rational functions of degree 4[5]. These...
Provided by University of Cincinnati
-
White Papers
Breaking the Symmetry: A Way to Resist the New Differential Attack
September 13, 2007, 12:00am PDT
SFLASH recently had been broken by Dubois, Stern, Shamir, etc., using a differential attack on the public key. The C¤− signature schemes are hence no longer practical. In this paper, the...
Provided by University of Cincinnati
-
White Papers
High Order Linearization Equation (HOLE) Attack on Multivariate Public Key Cryptosystems
January 1, 2011, 12:00am PST
For the last three decades, public key cryptosystems, as a revolutionary break through in cryptography, have developed into an indispensable element of the modern communication system. For RSA and...
Provided by University of Cincinnati
-
White Papers
Odd-Char Multivariate Hidden Field Equations
December 28, 2008, 12:00am PST
The authors present a multivariate version of Hidden Field Equations (HFE) over a finite field of odd characteristic, with an extra "Embedding" modifier. Combining these known ideas makes the new...
Provided by University of Cincinnati
-
White Papers
Secure Group Key Management Approach Based Upon N-Dimensional Hyper-Sphere
May 8, 2011, 12:00am PDT
Secure group communication systems become more and more important in many emerging network applications. For a secure group communication system, an efficient and robust group key management...
Provided by University of Cincinnati
-
Whitepapers
Modeling the Neighborhood Area Networks of the Smart Grid
May 24, 2012, 12:00am PDT
ICT and M2M communications will definitely play a key role on making the Smart Grid dream comes true. However, there are many available communications technologies that can be applied to this...
Provided by University of Cincinnati
-
Whitepapers
Implementing BLAKE With AVX, AVX2, and XOP
May 16, 2012, 12:00am PDT
In 2013 Intel will release the AVX2 instructions, which introduce 256-bit Single-Instruction Multiple-Data (SIMD) integer arithmetic. This will enable desktop and server processors from this...
Provided by University of Cincinnati
-
White Papers
Optimizing System Services in Virtualized Machines for Improved Execution of Parallel Applications
December 14, 2009, 12:00am PST
Hardware virtualization in the x86 architecture has enabled the use of virtual machine monitors in Beowulf clusters. In turn, each application user can then run a virtual guest operating system of...
Provided by University of Cincinnati
-
White Papers
An Inherent Security Benefit of Analog Network Coding for the Detection of Byzantine Attacks in Multi-Hop Wireless Networks
March 21, 2011, 12:00am PDT
Modern multi-hop wireless networks employ a number of sophisticated schemes to secure the network against hostile attacks. However, constant improvements in any security mechanism is matched by...
Provided by University of Cincinnati
-
White Papers
Algebraic Attack on Lattice Based Cryptosystems Via Solving Equations Over Real Numbers
February 23, 2012, 12:00am PST
In this paper, the authors present a new algorithm to attack lattice based cryptosystems by solving a problem over real numbers. In the case of the NTRU cryptosystem, if they assume the additional...
Provided by University of Cincinnati
-
Whitepapers
Boosting the Reliability of Deterministic Broadcasting Protocols for MANETs
January 1, 2012, 12:00am PST
A significant number of broadcasting protocols are unable to cope well with failures under a realistic scenario of momentary failures and topology changes. In order to enhance the capability of...
Provided by University of Cincinnati
-
Whitepapers
Implementing BLAKE With AVX, AVX2, and XOP
May 16, 2012, 12:00am PDT
In 2013 Intel will release the AVX2 instructions, which introduce 256-bit Single-Instruction Multiple-Data (SIMD) integer arithmetic. This will enable desktop and server processors from this...
Provided by University of Cincinnati
-
Whitepapers
Modeling the Neighborhood Area Networks of the Smart Grid
May 24, 2012, 12:00am PDT
ICT and M2M communications will definitely play a key role on making the Smart Grid dream comes true. However, there are many available communications technologies that can be applied to this...
Provided by University of Cincinnati
-
Whitepapers
Boosting the Reliability of Deterministic Broadcasting Protocols for MANETs
January 1, 2012, 12:00am PST
A significant number of broadcasting protocols are unable to cope well with failures under a realistic scenario of momentary failures and topology changes. In order to enhance the capability of...
Provided by University of Cincinnati
-
White Papers
Algebraic Attack on Lattice Based Cryptosystems Via Solving Equations Over Real Numbers
February 23, 2012, 12:00am PST
In this paper, the authors present a new algorithm to attack lattice based cryptosystems by solving a problem over real numbers. In the case of the NTRU cryptosystem, if they assume the additional...
Provided by University of Cincinnati
-
White Papers
An Inherent Security Benefit of Analog Network Coding for the Detection of Byzantine Attacks in Multi-Hop Wireless Networks
March 21, 2011, 12:00am PDT
Modern multi-hop wireless networks employ a number of sophisticated schemes to secure the network against hostile attacks. However, constant improvements in any security mechanism is matched by...
Provided by University of Cincinnati
-
White Papers
Optimizing System Services in Virtualized Machines for Improved Execution of Parallel Applications
December 14, 2009, 12:00am PST
Hardware virtualization in the x86 architecture has enabled the use of virtual machine monitors in Beowulf clusters. In turn, each application user can then run a virtual guest operating system of...
Provided by University of Cincinnati
-
White Papers
Secure Group Key Management Approach Based Upon N-Dimensional Hyper-Sphere
May 8, 2011, 12:00am PDT
Secure group communication systems become more and more important in many emerging network applications. For a secure group communication system, an efficient and robust group key management...
Provided by University of Cincinnati
-
White Papers
Odd-Char Multivariate Hidden Field Equations
December 28, 2008, 12:00am PST
The authors present a multivariate version of Hidden Field Equations (HFE) over a finite field of odd characteristic, with an extra "Embedding" modifier. Combining these known ideas makes the new...
Provided by University of Cincinnati
-
White Papers
High Order Linearization Equation (HOLE) Attack on Multivariate Public Key Cryptosystems
January 1, 2011, 12:00am PST
For the last three decades, public key cryptosystems, as a revolutionary break through in cryptography, have developed into an indispensable element of the modern communication system. For RSA and...
Provided by University of Cincinnati
-
White Papers
Breaking the Symmetry: A Way to Resist the New Differential Attack
September 13, 2007, 12:00am PDT
SFLASH recently had been broken by Dubois, Stern, Shamir, etc., using a differential attack on the public key. The C¤− signature schemes are hence no longer practical. In this paper, the...
Provided by University of Cincinnati
-
White Papers
Cryptanalysis of Rational Multivariate Public Key Cryptosystems
September 13, 2007, 12:00am PDT
In 1989, Tsujii, Fujioka, and Hirayama proposed a family of multivariate public key cryptosystems, where the public key is given as a set of multivariate rational functions of degree 4[5]. These...
Provided by University of Cincinnati
-
White Papers
The Design and Implementation of RAPID-Cache: A Reliable, Inexpensive, and High-Performance I/O Cache for Linux
January 1, 2011, 12:00am PST
Most file system performance enhancing techniques, such as the I/O buffer cache and the Log-structured File Systems (LFS), relying on caching data in volatile RAM for a period of time before...
Provided by University of Cincinnati
-
White Papers
A User-Level, Temporary File System for Large Web Servers
January 1, 2011, 12:00am PST
Several recent studies have pointed out that file I/Os can be a major performance bottleneck for some large web servers. Large I/O buffer caches often do not work effectively for large servers....
Provided by University of Cincinnati
-
White Papers
A Performance Study of E-Mail Services
January 1, 2011, 12:00am PST
This paper presents a performance study of the ISP (Internet Service Provider) mail servers. By using the SPECmail2001 benchmark to test a commercial mail service MDaemon 5.0.1, the authors...
Provided by University of Cincinnati
-
White Papers
UCFS - A Novel User-Space, High Performance, Customized File System For Web Proxy Servers
January 1, 2011, 12:00am PST
Web proxy caching servers play a key role in today's Web infrastructure. Previous studies have shown that disk I/O is one of the major performance bottlenecks of proxy servers. Most conventional...
Provided by University of Cincinnati
-
White Papers
SSA - Superblock-Based Storage Architecture: A New Approach for Boosting I/O Performance
January 1, 2011, 12:00am PST
Many of the new I/O architectures like DCD, RAPID cache and LFS focus on improving the disk write performance. However, many I/O intensive applications are read-dominated or generate substantial...
Provided by University of Cincinnati
-
White Papers
Piconet Interference Modeling and Performance Evaluation of Bluetooth MAC Protocol
January 1, 2011, 12:00am PST
The emergence of Bluetooth as a default radio interface has allowed handheld electronic devices to be instantly interconnected as ad-hoc networks. These short range ad-hoc wireless networks called...
Provided by University of Cincinnati
-
White Papers
The Lonely NATed Node
January 1, 2011, 12:00am PST
In this paper the authors take the position that current research in the area of distributed systems has all but forgotten about one of the largest collective Internet resources - the NATed node....
Provided by University of Cincinnati
-
White Papers
Dead Reckoning in Mobile Ad Hoc Networks
January 1, 2010, 12:00am PST
A predictive model-based mobility tracking method, called dead reckoning, is proposed for mobile ad hoc networks. It disseminates both location and movement models of mobile nodes in the network...
Provided by University of Cincinnati
-
White Papers
Graph Theoretic Approach to QoS-Guaranteed Spectrum Allocation in Cognitive Radio Networks
November 16, 2008, 12:00am PST
This paper proposes a novel graph theoretic matching algorithm to model the dynamic channel allocation problem in cognitive radio networks. In the past, no research work has considered both the...
Provided by University of Cincinnati
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