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Sharif University of Technology
(35 results)-
White Papers
Developing a Hybrid Method for Identifying Monitoring Nodes in Intrusion Detection Systems of MANET
December 22, 2008, 12:00am PST
Nowadays with appearance of a wide range of wireless devices, security of Mobile Ad hoc Networks (MANET) became an important problem and Intrusion Detection System (IDS) can be deployed as a...
Provided by Sharif University of Technology
-
White Papers
Network-Based Intrusion Detection Using Unsupervised Adaptive Resonance Theory (ART)
January 1, 2009, 12:00am PST
This paper introduces the Unsupervised Neural Net based Intrusion Detector (UNNID) system, which detects network-based intrusions and attacks using unsupervised neural networks. The system has...
Provided by Sharif University of Technology
-
White Papers
An Asynchronous, Low Power and Secure Framework for Network-on-Chips
July 1, 2008, 12:00am PDT
Network-on-Chip (NoC) is an approach to handle huge number of transistors by virtue of technology scaling to lower than 50nm. The issue of security has been always controversial to many designers....
Provided by Sharif University of Technology
-
White Papers
Secure Data Outsourcing Based on Threshold Secret Sharing; Towards a More Practical Solution
August 23, 2010, 12:00am PDT
Database outsourcing is a noteworthy solution to improve quality of services while reducing data management costs. When data is stored and processed out of the territory of its owner, security...
Provided by Sharif University of Technology
-
White Papers
A Solution For Transportation Planning In Supply Chain
June 30, 2009, 12:00am PDT
An advanced optimization system for Vehicle Routing and Scheduling Problems (VRSP), which is one of the Supply Chain Planning modules, is introduced. An object oriented system, Computer Aided...
Provided by Sharif University of Technology
-
White Papers
Truthful and Secure Routing in Ad Hoc Networks With Malicious and Selfish Nodes
January 1, 2009, 12:00am PST
Cooperation among nodes is important in ad hoc networks since in such networks nodes depend on each other for forwarding packets. However, cooperation in such operations consumes nodes energy and...
Provided by Sharif University of Technology
-
White Papers
Collaborative Information System Architecture for CAD/CAM in New Product Development Based on STEP Standard
October 22, 2010, 12:00am PDT
In today's competitive market, information technology tools play a most important role in new product development. Integrated design includes CAD, process planning and CNC code generation. The...
Provided by Sharif University of Technology
-
White Papers
Analysis of Public-Key Cryptography for Wireless Sensor Networks Security
June 17, 2009, 12:00am PDT
With the widespread growth of applications of Wireless Sensor Networks (WSNs), the need for reliable security mechanisms these networks has increased manifold. Many security solutions have been...
Provided by Sharif University of Technology
-
White Papers
A New Decoding Scheme for Errorless Codes for Overloaded CDMA With Active User Detection
October 3, 2009, 12:00am PDT
In a binary CDMA system, each user is assigned a binary signature vector. At each symbol interval, each user multiplies its symbol (which is +1 or -1) by its signature and sends it through the...
Provided by Sharif University of Technology
-
White Papers
A Hybrid Global Minimization Scheme for Accurate Source Localization in Sensor Networks
February 14, 2011, 12:00am PST
The authors consider the localization problem of multiple wideband sources by coherently taking into account the attenuation characteristics and the time delays in the reception of the signal. The...
Provided by Sharif University of Technology
-
White Papers
Beyond the Cut Set Bound: Uncertainty Computations in Network Coding With Correlated Sources
March 18, 2011, 12:00am PDT
Cut-set bounds on achievable rates for network communication protocols are not in general tight. In this paper the authors introduce a new technique for proving converses for the problem of...
Provided by Sharif University of Technology
-
White Papers
A New Secret Key Agreement Scheme in a Four- Terminal Network
March 27, 2011, 12:00am PDT
A new scenario for generating a secret key and two private keys among three Terminals in the presence of an external eavesdropper is considered. Terminals 1, 2 and 3 intend to share a common...
Provided by Sharif University of Technology
-
White Papers
Almost-Optimum Signature Matrices in Binary-Input Synchronous Overloaded CDMA
December 9, 2010, 12:00am PST
The everlasting bandwidth limitations in wireless communication networks has directed the researchers' thrust toward analyzing the prospect of overloaded Code Division Multiple Access (CDMA). In...
Provided by Sharif University of Technology
-
White Papers
Slepian-Wolf Coding Over Cooperative Networks
January 15, 2009, 12:00am PST
The authors present sufficient conditions for multicasting a set of correlated sources over cooperative networks. They propose joint source-Wyner-Ziv encoding/sliding-window decoding scheme, in...
Provided by Sharif University of Technology
-
White Papers
Energy and Utility Optimization in Wireless Networks With Random Access
November 24, 2010, 12:00am PST
Energy consumption is a main issue of concern in wireless networks. Energy minimization increases the time that networks' nodes work properly without recharging or substituting batteries. Another...
Provided by Sharif University of Technology
-
White Papers
Delay Constrained Utility Maximization in Multihop Random Access Networks
November 24, 2010, 12:00am PST
Multi-hop random access networks have received much attention due to their distributed nature which facilitates deploying many new applications over the sensor and computer networks. Recently,...
Provided by Sharif University of Technology
-
White Papers
QoS-Aware Joint Policies in Cognitive Radio Networks
October 14, 2010, 12:00am PDT
One of the most challenging problems in Opportunistic Spectrum Access (OSA) is to design channel sensing-based protocol in multi Secondary Users (SUs) network. Quality of Service (QoS)...
Provided by Sharif University of Technology
-
White Papers
Direction-of-Arrival Estimation for Temporally Correlated Narrowband Signals
April 23, 2009, 12:00am PDT
Signal direction-of-arrival estimation using an array of sensors has been the subject of intensive research and development during the last two decades. Efforts have been directed to both, better...
Provided by Sharif University of Technology
-
White Papers
Probabilistic SVM/GMM Classifier for Speaker-Independent Vowel Recognition in Continues Speech
October 6, 2008, 12:00am PDT
In this paper, the authors discuss the issues in automatic recognition of vowels in Persian language. The present work focuses on new statistical method of recognition of vowels as a basic unit of...
Provided by Sharif University of Technology
-
White Papers
Two Dimensional Connectivity for Vehicular Ad-Hoc Networks
December 9, 2008, 12:00am PST
In this paper, the authors focus on two-dimensional connectivity in sparse Vehicular Ad hoc NETworks (VANETs). In this respect, they find thresholds for the arrival rates of vehicles at entrances...
Provided by Sharif University of Technology
-
White Papers
Improving Performance of Cluster Based Routing Protocol Using Cross-Layer Design
February 4, 2008, 12:00am PST
The main goal of routing protocol is to efficiency delivers data from source to destination. All routing protocols are the same in this goal, but the way they adopt to achieve it is different, so...
Provided by Sharif University of Technology
-
White Papers
Reconciling Operational and Epistemic Approaches to the Formal Analysis of Crypto-Based Security Protocols
April 11, 2011, 12:00am PDT
The authors propose a unifying framework for formal specification and verification of both epistemic and behavioral aspects of security protocols. The main novelty of the proposed framework is the...
Provided by Sharif University of Technology
-
White Papers
FORK-160: A New 160 - Bit Software-Oriented Hash Function
September 1, 2007, 12:00am PDT
There are various cryptographic protocols in which 160-bit message digest is required. SHA-1is the most well-known 160- bit hash function which is still used in protocols despite of its...
Provided by Sharif University of Technology
-
White Papers
Tipover Stability Enhancement of Wheeled Mobile Manipulators Using an Adaptive Neuro-Fuzzy Inference Controller System
June 12, 2009, 12:00am PDT
In this paper an algorithm based on the adaptive neuro-fuzzy controller is provided to enhance the tip-over stability of mobile manipulators when they are subjected to predefined trajectories for...
Provided by Sharif University of Technology
-
White Papers
Wireless Sensor Networks Topology Control: A Distributed, Power Efficient and Fair Algorithm
October 20, 2010, 12:00am PDT
Wireless sensor networks are multi-hop randomly distributed networks which collect environmental data and send them to some sink nodes. These networks are different from other wireless networks in...
Provided by Sharif University of Technology
-
White Papers
A New Achievable Rate and the Capacity of Some Classes of Multilevel Relay Network
March 3, 2008, 12:00am PST
A new achievable rate based on a partial decoding scheme is proposed for the multilevel relay network. A novel application of regular encoding and backward decoding is presented to implement the...
Provided by Sharif University of Technology
-
White Papers
Equational Reasoning on Mobile Ad Hoc Networks
September 15, 2010, 12:00am PDT
The authors provide an equational theory for Restricted Broadcast Process Theory to reason about ad hoc networks. They exploit an extended algebra called Computed Network Theory to axiomatize...
Provided by Sharif University of Technology
-
White Papers
Two RFID Privacy Models in Front of a Court
November 17, 2011, 12:00am PST
In ASIACRYPT 2007, Vaudenay proposed a comprehensive privacy model for unilateral RFID schemes. Soon after, in ASIACCS 2008, Paise and Vaudenay presented a new version of the cited model which...
Provided by Sharif University of Technology
-
White Papers
A Pairing Based Strong Designated Verifier Signature Scheme without Random Oracles
February 6, 2012, 12:00am PST
In this paper, a novel strong designated verifier signature scheme based on bilinear pairings with provable security in the standard model is proposed, while the existing ones are secure in the...
Provided by Sharif University of Technology
-
White Papers
An Efficient Multistage Secret Sharing Scheme Using Linear One-way Functions and Bilinear Maps
March 5, 2012, 12:00am PST
In a Multistage Secret Sharing (MSSS) Scheme, the authorized subsets of participants could reconstruct a number of secrets in consecutive stages. A One-Stage Multisecret Sharing (OSMSS) Scheme is...
Provided by Sharif University of Technology
-
White Papers
One-Hop Throughput of Wireless Networks With Random Connections
November 8, 2011, 12:00am PST
Wireless networks are subject to fundamental limitations in establishing source-destination data sessions. Investigating such limitations, along with discovering potential communication...
Provided by Sharif University of Technology
-
White Papers
Cellular Learning Automata Based Dynamic Channel Assignment Algorithms
July 8, 2009, 12:00am PDT
A solution to channel assignment problem in cellular networks is self-organizing channel assignment algorithm with distributed control. In this paper, the authors propose three cellular learning...
Provided by Sharif University of Technology
-
Whitepapers
A Survey for Load Balancing in Mobile WiMAX Networks
March 1, 2012, 12:00am PST
Mobile Worldwide Interoperability for Microwave Access (Mobile WiMAX) is a wireless access technology based on IEEE 802.16e standard. Mobile WiMAX supports mobility, high utilization of radio...
Provided by Sharif University of Technology
-
Whitepapers
Decorrelating Closely-Placed Antennas by Pattern Design in Uniform Scattering Environments
February 20, 2008, 12:00am PST
Recently, there has been a great interest in employing multiple antennas at the transmitter and/or the receiver to enhance the system capacity, and it has been shown that this technique...
Provided by Sharif University of Technology
-
White Papers
Bounds on the Sum Capacity of Synchronous Binary CDMA Channels
December 30, 2008, 12:00am PST
This paper obtains a family of lower bounds for the sum capacity of Code Division Multiple Access (CDMA) channels assuming binary inputs and binary signature codes in the presence of additive...
Provided by Sharif University of Technology
-
Whitepapers
Decorrelating Closely-Placed Antennas by Pattern Design in Uniform Scattering Environments
February 20, 2008, 12:00am PST
Recently, there has been a great interest in employing multiple antennas at the transmitter and/or the receiver to enhance the system capacity, and it has been shown that this technique...
Provided by Sharif University of Technology
-
Whitepapers
A Survey for Load Balancing in Mobile WiMAX Networks
March 1, 2012, 12:00am PST
Mobile Worldwide Interoperability for Microwave Access (Mobile WiMAX) is a wireless access technology based on IEEE 802.16e standard. Mobile WiMAX supports mobility, high utilization of radio...
Provided by Sharif University of Technology
-
White Papers
Cellular Learning Automata Based Dynamic Channel Assignment Algorithms
July 8, 2009, 12:00am PDT
A solution to channel assignment problem in cellular networks is self-organizing channel assignment algorithm with distributed control. In this paper, the authors propose three cellular learning...
Provided by Sharif University of Technology
-
White Papers
One-Hop Throughput of Wireless Networks With Random Connections
November 8, 2011, 12:00am PST
Wireless networks are subject to fundamental limitations in establishing source-destination data sessions. Investigating such limitations, along with discovering potential communication...
Provided by Sharif University of Technology
-
White Papers
An Efficient Multistage Secret Sharing Scheme Using Linear One-way Functions and Bilinear Maps
March 5, 2012, 12:00am PST
In a Multistage Secret Sharing (MSSS) Scheme, the authorized subsets of participants could reconstruct a number of secrets in consecutive stages. A One-Stage Multisecret Sharing (OSMSS) Scheme is...
Provided by Sharif University of Technology
-
White Papers
A Pairing Based Strong Designated Verifier Signature Scheme without Random Oracles
February 6, 2012, 12:00am PST
In this paper, a novel strong designated verifier signature scheme based on bilinear pairings with provable security in the standard model is proposed, while the existing ones are secure in the...
Provided by Sharif University of Technology
-
White Papers
Two RFID Privacy Models in Front of a Court
November 17, 2011, 12:00am PST
In ASIACRYPT 2007, Vaudenay proposed a comprehensive privacy model for unilateral RFID schemes. Soon after, in ASIACCS 2008, Paise and Vaudenay presented a new version of the cited model which...
Provided by Sharif University of Technology
-
White Papers
Equational Reasoning on Mobile Ad Hoc Networks
September 15, 2010, 12:00am PDT
The authors provide an equational theory for Restricted Broadcast Process Theory to reason about ad hoc networks. They exploit an extended algebra called Computed Network Theory to axiomatize...
Provided by Sharif University of Technology
-
White Papers
A New Achievable Rate and the Capacity of Some Classes of Multilevel Relay Network
March 3, 2008, 12:00am PST
A new achievable rate based on a partial decoding scheme is proposed for the multilevel relay network. A novel application of regular encoding and backward decoding is presented to implement the...
Provided by Sharif University of Technology
-
White Papers
Wireless Sensor Networks Topology Control: A Distributed, Power Efficient and Fair Algorithm
October 20, 2010, 12:00am PDT
Wireless sensor networks are multi-hop randomly distributed networks which collect environmental data and send them to some sink nodes. These networks are different from other wireless networks in...
Provided by Sharif University of Technology
-
White Papers
Tipover Stability Enhancement of Wheeled Mobile Manipulators Using an Adaptive Neuro-Fuzzy Inference Controller System
June 12, 2009, 12:00am PDT
In this paper an algorithm based on the adaptive neuro-fuzzy controller is provided to enhance the tip-over stability of mobile manipulators when they are subjected to predefined trajectories for...
Provided by Sharif University of Technology
-
White Papers
FORK-160: A New 160 - Bit Software-Oriented Hash Function
September 1, 2007, 12:00am PDT
There are various cryptographic protocols in which 160-bit message digest is required. SHA-1is the most well-known 160- bit hash function which is still used in protocols despite of its...
Provided by Sharif University of Technology
-
White Papers
Reconciling Operational and Epistemic Approaches to the Formal Analysis of Crypto-Based Security Protocols
April 11, 2011, 12:00am PDT
The authors propose a unifying framework for formal specification and verification of both epistemic and behavioral aspects of security protocols. The main novelty of the proposed framework is the...
Provided by Sharif University of Technology
-
White Papers
Improving Performance of Cluster Based Routing Protocol Using Cross-Layer Design
February 4, 2008, 12:00am PST
The main goal of routing protocol is to efficiency delivers data from source to destination. All routing protocols are the same in this goal, but the way they adopt to achieve it is different, so...
Provided by Sharif University of Technology
-
White Papers
Two Dimensional Connectivity for Vehicular Ad-Hoc Networks
December 9, 2008, 12:00am PST
In this paper, the authors focus on two-dimensional connectivity in sparse Vehicular Ad hoc NETworks (VANETs). In this respect, they find thresholds for the arrival rates of vehicles at entrances...
Provided by Sharif University of Technology
-
White Papers
Probabilistic SVM/GMM Classifier for Speaker-Independent Vowel Recognition in Continues Speech
October 6, 2008, 12:00am PDT
In this paper, the authors discuss the issues in automatic recognition of vowels in Persian language. The present work focuses on new statistical method of recognition of vowels as a basic unit of...
Provided by Sharif University of Technology
-
White Papers
Direction-of-Arrival Estimation for Temporally Correlated Narrowband Signals
April 23, 2009, 12:00am PDT
Signal direction-of-arrival estimation using an array of sensors has been the subject of intensive research and development during the last two decades. Efforts have been directed to both, better...
Provided by Sharif University of Technology
-
White Papers
QoS-Aware Joint Policies in Cognitive Radio Networks
October 14, 2010, 12:00am PDT
One of the most challenging problems in Opportunistic Spectrum Access (OSA) is to design channel sensing-based protocol in multi Secondary Users (SUs) network. Quality of Service (QoS)...
Provided by Sharif University of Technology
-
White Papers
Delay Constrained Utility Maximization in Multihop Random Access Networks
November 24, 2010, 12:00am PST
Multi-hop random access networks have received much attention due to their distributed nature which facilitates deploying many new applications over the sensor and computer networks. Recently,...
Provided by Sharif University of Technology
-
White Papers
Energy and Utility Optimization in Wireless Networks With Random Access
November 24, 2010, 12:00am PST
Energy consumption is a main issue of concern in wireless networks. Energy minimization increases the time that networks' nodes work properly without recharging or substituting batteries. Another...
Provided by Sharif University of Technology
-
White Papers
Slepian-Wolf Coding Over Cooperative Networks
January 15, 2009, 12:00am PST
The authors present sufficient conditions for multicasting a set of correlated sources over cooperative networks. They propose joint source-Wyner-Ziv encoding/sliding-window decoding scheme, in...
Provided by Sharif University of Technology
-
White Papers
Almost-Optimum Signature Matrices in Binary-Input Synchronous Overloaded CDMA
December 9, 2010, 12:00am PST
The everlasting bandwidth limitations in wireless communication networks has directed the researchers' thrust toward analyzing the prospect of overloaded Code Division Multiple Access (CDMA). In...
Provided by Sharif University of Technology
-
White Papers
A New Secret Key Agreement Scheme in a Four- Terminal Network
March 27, 2011, 12:00am PDT
A new scenario for generating a secret key and two private keys among three Terminals in the presence of an external eavesdropper is considered. Terminals 1, 2 and 3 intend to share a common...
Provided by Sharif University of Technology
-
White Papers
Beyond the Cut Set Bound: Uncertainty Computations in Network Coding With Correlated Sources
March 18, 2011, 12:00am PDT
Cut-set bounds on achievable rates for network communication protocols are not in general tight. In this paper the authors introduce a new technique for proving converses for the problem of...
Provided by Sharif University of Technology
-
White Papers
A Hybrid Global Minimization Scheme for Accurate Source Localization in Sensor Networks
February 14, 2011, 12:00am PST
The authors consider the localization problem of multiple wideband sources by coherently taking into account the attenuation characteristics and the time delays in the reception of the signal. The...
Provided by Sharif University of Technology
-
White Papers
A New Decoding Scheme for Errorless Codes for Overloaded CDMA With Active User Detection
October 3, 2009, 12:00am PDT
In a binary CDMA system, each user is assigned a binary signature vector. At each symbol interval, each user multiplies its symbol (which is +1 or -1) by its signature and sends it through the...
Provided by Sharif University of Technology
-
White Papers
Analysis of Public-Key Cryptography for Wireless Sensor Networks Security
June 17, 2009, 12:00am PDT
With the widespread growth of applications of Wireless Sensor Networks (WSNs), the need for reliable security mechanisms these networks has increased manifold. Many security solutions have been...
Provided by Sharif University of Technology
-
White Papers
Collaborative Information System Architecture for CAD/CAM in New Product Development Based on STEP Standard
October 22, 2010, 12:00am PDT
In today's competitive market, information technology tools play a most important role in new product development. Integrated design includes CAD, process planning and CNC code generation. The...
Provided by Sharif University of Technology
-
White Papers
Truthful and Secure Routing in Ad Hoc Networks With Malicious and Selfish Nodes
January 1, 2009, 12:00am PST
Cooperation among nodes is important in ad hoc networks since in such networks nodes depend on each other for forwarding packets. However, cooperation in such operations consumes nodes energy and...
Provided by Sharif University of Technology
-
White Papers
A Solution For Transportation Planning In Supply Chain
June 30, 2009, 12:00am PDT
An advanced optimization system for Vehicle Routing and Scheduling Problems (VRSP), which is one of the Supply Chain Planning modules, is introduced. An object oriented system, Computer Aided...
Provided by Sharif University of Technology
-
White Papers
Secure Data Outsourcing Based on Threshold Secret Sharing; Towards a More Practical Solution
August 23, 2010, 12:00am PDT
Database outsourcing is a noteworthy solution to improve quality of services while reducing data management costs. When data is stored and processed out of the territory of its owner, security...
Provided by Sharif University of Technology
-
White Papers
An Asynchronous, Low Power and Secure Framework for Network-on-Chips
July 1, 2008, 12:00am PDT
Network-on-Chip (NoC) is an approach to handle huge number of transistors by virtue of technology scaling to lower than 50nm. The issue of security has been always controversial to many designers....
Provided by Sharif University of Technology
-
White Papers
Network-Based Intrusion Detection Using Unsupervised Adaptive Resonance Theory (ART)
January 1, 2009, 12:00am PST
This paper introduces the Unsupervised Neural Net based Intrusion Detector (UNNID) system, which detects network-based intrusions and attacks using unsupervised neural networks. The system has...
Provided by Sharif University of Technology
-
White Papers
Developing a Hybrid Method for Identifying Monitoring Nodes in Intrusion Detection Systems of MANET
December 22, 2008, 12:00am PST
Nowadays with appearance of a wide range of wireless devices, security of Mobile Ad hoc Networks (MANET) became an important problem and Intrusion Detection System (IDS) can be deployed as a...
Provided by Sharif University of Technology
-
White Papers
Bounds on the Sum Capacity of Synchronous Binary CDMA Channels
December 30, 2008, 12:00am PST
This paper obtains a family of lower bounds for the sum capacity of Code Division Multiple Access (CDMA) channels assuming binary inputs and binary signature codes in the presence of additive...
Provided by Sharif University of Technology
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