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Islamic Azad University
(185 results)-
White Papers
Offline Signature Recognition Using Radon Transform
March 3, 2012, 12:00am PST
In this paper, a new offline signature recognition system based on Radon Transform, Fractal Dimension (FD) and Support Vector Machine (SVM) is presented. In the first step, projections of original...
Provided by Islamic Azad University
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White Papers
Providing a Model for Predicting Tour Sale in Mobile e-Tourism Recommender Systems
February 1, 2012, 12:00am PST
In this paper, a new model is proposed for tourism recommender systems. This model recommends tours to tourists using data-mining techniques such as clustering and association rules. According to...
Provided by Islamic Azad University
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White Papers
Role Allocation and Scheme in Software Engineering Course Projects
June 9, 2011, 12:00am PDT
Role is a set of behavioural actions and responsibilities one takes in a specific situation. The people play different roles with their family, at work as well as in other environments....
Provided by Islamic Azad University
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White Papers
A New Algorithm for Query Processing in Wireless Sensor Networks
December 27, 2011, 12:00am PST
A Wireless Sensor Network (WSN) is a wireless network having distributed self-organized autonomous devices employing sensors to monitor environmental conditions like temperature, humidity,...
Provided by Islamic Azad University
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White Papers
LAMR: Learning Automata Based Multicast Routing Protocol for Multi-Channel Multi-Radio Wireless Mesh Networks
May 12, 2012, 12:00am PDT
Multicast routing is a crucial issue in wireless networks in which the same content should be delivered to a group of recipients simultaneously. Multicast is also considered as a key service for...
Provided by Islamic Azad University
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White Papers
LLACA: An Adaptive Localized Clustering Algorithm for Wireless Ad Hoc Networks
May 14, 2011, 12:00am PDT
Performance of ad hoc networks dramatically declines as network grows. Cluster formation in which the network hosts are hierarchically partitioned into several autonomous non-overlapping groups,...
Provided by Islamic Azad University
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White Papers
A Link Stability-Based Multicast Routing Protocol for Wireless Mobile Ad Hoc Networks
March 13, 2011, 12:00am PST
Recently, several studies have been conducted to design mobility-based multicast routing protocols for wireless Mobile Ad hoc NETworks (MANET). These protocols assume that the mobility parameters...
Provided by Islamic Azad University
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White Papers
A Mobility-Based Cluster Formation Algorithm for Wireless Mobile Adhoc Networks
February 13, 2011, 12:00am PST
In the last decade, numerous efforts have been devoted to design efficient algorithms for clustering the wireless Mobile Ad-hoc NETworks (MANET) considering the network mobility characteristics....
Provided by Islamic Azad University
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White Papers
A Mathematical Formulation for Joint Channel Assignment and Multicast Routing in Multi-Channel Multi-Radio Wireless Mesh Networks
January 16, 2011, 12:00am PST
Multicast routing is generally an efficient mechanism for delivering identical content to a group of receivers. Multicast is also deemed a key enabling service for a wealth of audio and video...
Provided by Islamic Azad University
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White Papers
Learning AutomataBased Algorithms for Finding Minimum Weakly Connected Dominating Set in Stochastic Graphs
April 21, 2010, 12:00am PDT
A Weakly Connected Dominating Set (WCDS) of graph G is a subset of G so that the vertex set of the given subset and all vertices with at least one endpoint in the subset induce a connected...
Provided by Islamic Azad University
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White Papers
Weighted Steiner Connected Dominating Set and Its Application to Multicast Routing in Wireless MANETs
February 10, 2010, 12:00am PST
In this paper, the authors first propose three centralized learning automata-based heuristic algorithms for approximating a near optimal solution to the minimum Weight Steiner Connected Dominating...
Provided by Islamic Azad University
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White Papers
An Intelligent Global Flooding Algorithm in Wireless Ad Hoc Networks Based on Distributed Learning Automata
October 10, 2009, 12:00am PDT
In wireless ad hoc networks, due to the dynamic topology changes, multi hop communications and strict resource limitations, routing becomes the most challenging issue, and broadcasting is a common...
Provided by Islamic Azad University
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White Papers
LA-Mobicast: A Learning Automata Based Mobicast Routing Protocol for Wireless Sensor Networks
December 12, 2007, 12:00am PST
Sensor networks are large-scale distributed embedded systems composed of a large number of small-sized, low-cost, and low-power devices that integrate sensor, actuators, wireless communication and...
Provided by Islamic Azad University
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White Papers
Solving Connected Dominating Set Problem in Unit Disk Graphs by Genetic Algorithms
February 24, 2012, 12:00am PST
In this paper, the authors use Genetic Algorithms to find the Minimum Connected Dominating Set (MCDS) of Unit Disk Graphs (UDG). UDGs are used for modeling ad-hoc networks and finding MCDS in such...
Provided by Islamic Azad University
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White Papers
A New Hybrid Approach for Data Clustering Using Firefly Algorithm and K-Means
April 17, 2012, 12:00am PDT
Data clustering is a common technique for data analysis and is used in many fields, including data mining, pattern recognition and image analysis. K-means clustering is a common and simple...
Provided by Azad University
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White Papers
Simulated Annealing Algorithm for Data Aggregation Trees in Wireless Sensor Networks
March 31, 2012, 12:00am PDT
Wireless sensor networks look like mobile ad hoc networks based on many aspects, but protocols which are used for ad hoc networks, are not suitable for wireless sensor networks. In ad hoc...
Provided by Islamic Azad University
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Whitepapers
Enterprise Integration Using Service Oriented Architecture
September 1, 2011, 12:00am PDT
Today, one of the new solutions to build organizational systems applications, service-based solution is considered. This paper will attempt to identify with the full service approach the authors...
Provided by Azad University
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Whitepapers
Security Model for Service-Oriented Architecture
July 1, 2011, 12:00am PDT
In this paper, the authors examine how security applies to Service Oriented Architecture (SOA). Before they discuss security for SOA, let's take a step back and examine what SOA is. SOA is an...
Provided by Azad University
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Whitepapers
Survey of Clustering in Mobile Ad Hoc Networks
September 1, 2011, 12:00am PDT
Clustering of nodes provides an efficient means of establishing a hierarchical structure in mobile ad hoc networks. In mobile ad hoc networks, the movement of the network nodes may quickly change...
Provided by Islamic Azad University
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Whitepapers
A Novel Semantic-Based Image Retrieval Method
February 20, 2008, 12:00am PST
In this paper, the authors design a fuzzy system for image retrieval to reduce the semantic gap in the content - based image retrieval systems. The main contribution is three - fold: designing a...
Provided by Islamic Azad University
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Whitepapers
A Novel Fuzzy Logic Base Scheduling Mechanism for Service Differentiation in IP Networks
April 20, 2009, 12:00am PDT
Quality of Service (QoS) refers to a set of rules or techniques that help the network administrators use the available network resources optimally to manage the effects of congestion and to treat...
Provided by Azad University
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Whitepapers
Optimum Allocation of Distributed Generations Based on Evolutionary Programming for Loss Reduction and Voltage Profile Correction
December 1, 2011, 12:00am PST
This paper presents an optimal placement method in order to sizing and sitting of distributed generation in IEEE 33 bus test system. The algorithm for optimization in this paper is Evolutionary...
Provided by Islamic Azad University
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Whitepapers
A New Sensor Data's Storage
June 8, 2012, 12:00am PDT
Sensor networks are a kind of ad hoc networks. Sensors enable machines to capture and observe characteristics of physical objects and features of natural incidents. Most of the current efforts on...
Provided by Islamic Azad University
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Whitepapers
Reversible Circuit Optimization Using PSO Algorithm
June 8, 2012, 12:00am PDT
Reversible Circuits Synthesis and optimization is one of the main terms dealt with in this paper. The synthesis and optimization of circuits using PSO algorithm is investigated in this paper. In...
Provided by Islamic Azad University
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Whitepapers
An Approximation Algorithm for Clarity Edge Covering Problem
April 20, 2012, 12:00am PDT
Clarity edge covering problem is a version of art gallery problem. In this problem the goal is finding the minimum number of guards which covers all edges. Here, meaning of visibility is different...
Provided by Islamic Azad University
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White Papers
A New Scheme for Improving the Quality of Service in Heterogeneous Wireless Network for Data Stream Sending
June 13, 2009, 12:00am PDT
In this paper, the authors first consider the quality of service problems in heterogeneous wireless networks for sending the video data, which their problem of being real-time is pronounced. At...
Provided by Islamic Azad University
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White Papers
DWDM Optical Supervisory Channel by Manchester Code on FPGA
December 15, 2010, 12:00am PST
The next generation optical Wavelength Division Multiplex (WDM) network will transport a stupendous aggregate data rate that consists of all existing types of payload, synchronous and...
Provided by Islamic Azad University
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White Papers
Comparative Evaluation of Data Stream Indexing Models
January 26, 2011, 12:00am PST
In recent years, the management and processing of data streams has become a topic of active research in several fields of computer science such as, distributed systems, database systems, and data...
Provided by Islamic Azad University
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White Papers
DS-CDMA Cellular Systems Performance With Base Station Assignment, Power Control Error, and Beamforming Over Multipath Fading
January 1, 2011, 12:00am PST
The interference reduction capability of antenna arrays, base station assignment and the power control algorithms have been considered separately as means to increase the capacity in wireless...
Provided by Islamic Azad University
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White Papers
Reverse Link Performance of DS-CDMA Cellular Systems Through Closed-Loop Power Control and Beamforming in 2D Urban Environment
November 1, 2010, 12:00am PDT
The interference reduction capability of antenna arrays and the power control algorithms have been considered separately as means to decrease the interference in wireless communication networks....
Provided by Islamic Azad University
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White Papers
Design Modem Based on DSP Processor TMS for Power Line Carrier System
January 9, 2010, 12:00am PST
One of the most important parts of the data transmission systems is processing of the signals. In the primary models of this system, all these processes were done in an analog format. Because of...
Provided by Islamic Azad University
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White Papers
A Low Power SRAM Base on Novel Word-Line Decoding
June 17, 2009, 12:00am PDT
This paper proposes a low power SRAM based on five transistor SRAM cell. Proposed SRAM uses novel word-line decoding such that, during read/write operation, only selected cell connected to...
Provided by Islamic Azad University
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White Papers
Influence of Radio Frequency Identification Technology in Logistic, Inventory Control and Supply Chain Optimization
November 4, 2010, 12:00am PDT
The main aim of Supply Chain Management (SCM) is to produce, distribute, logistics and deliver goods and equipment in right location, right time, right amount to satisfy customers, with minimum...
Provided by Islamic Azad University
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White Papers
A New Source Code Auditing Algorithm for Detecting LFI and RFI in PHP Programs
June 12, 2009, 12:00am PDT
Static analysis of source code is used for auditing web applications to detect the vulnerabilities. In this paper, the authors propose a new algorithm to analyze the PHP source code for detecting...
Provided by Islamic Azad University
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White Papers
Next Generation Networks and Their Relation With Ad-Hoc Networks
June 17, 2009, 12:00am PDT
The communication networks development and advancement during two last decades has been toward a single goal and that is gradual change from circuit-switched networks to packed switched ones....
Provided by Islamic Azad University
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White Papers
A New Distributed Protocol for Multicasting Over MPLS
March 21, 2008, 12:00am PDT
Due to the increasing multicast applications and high desire for its deployment, it seems that any new technology should support multicast. However, Mpls (Multiprotocol Label Switching) technology...
Provided by Islamic Azad University
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White Papers
A Systematic Method for Performance Analysis of SOA Applications
September 18, 2010, 12:00am PDT
The successful implementation of Service-Oriented Architecture (SOA) is not confined to Information Technology systems and required changes of the whole enterprise. In order to adapt IT and...
Provided by Islamic Azad University
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White Papers
Web Service Security Method to SOA Development
June 17, 2009, 12:00am PDT
Web services provide significant new benefits for SOA-based applications, but they also expose significant new security risks. There are huge number of WS security standards and processes. At...
Provided by Islamic Azad University
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White Papers
Service Identification Approach to SOA Development
June 12, 2009, 12:00am PDT
Service identification is one of the main activities in the modeling of a service-oriented solution, and therefore errors made during identification can flow down through detailed design and...
Provided by Islamic Azad University
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White Papers
A Review of Coverage and Routing for Wireless Sensor Networks
May 22, 2010, 12:00am PDT
The special constraints of sensor networks impose a number of technical challenges for employing them. This paper presents the issues and existing protocols in three areas: coverage and routing....
Provided by Islamic Azad University
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White Papers
The European Stock Market Impulse To The US Financial Crisis
June 26, 2009, 12:00am PDT
This paper examines how the European stock market reacts to the U.S. financial crisis and the Fed's policy, changing FFR. Johansen and Juselius cointegration analysis suggests that markets are...
Provided by Islamic Azad University
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White Papers
The European Stock Market Impulse To The U.S. Financial Crisis
October 31, 2009, 12:00am PDT
This study examines how the European stock market reacts to the US fundamentals including the Federal Fund Rate (FFR), the Euro-dollar exchange rate, and the US stock market indices. The results...
Provided by Islamic Azad University
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White Papers
PNR: New Position Based Routing Algorithm for Mobile Ad Hoc Networks
July 3, 2009, 12:00am PDT
An ad hoc network (MANET) has no fixed networking infrastructure, and consists of mobile nodes that communicate with each other. Since nodes are mobile, Routing in ad hoc network is a challenging...
Provided by Islamic Azad University
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White Papers
Presenting a New Routing Protocol for Increasing Lifetime of Sensor Network
November 1, 2010, 12:00am PDT
Sensor Networks are systems with restrict resources that are scattered on a large scale with numerous deployment density and are used in aggregating data in a intelligent style. In this paper the...
Provided by Islamic Azad University
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White Papers
TBRP: Novel Tree Based Routing Protocol in Wireless Sensor Network
December 1, 2010, 12:00am PST
In this paper, the authors propose a novel Tree Based Routing Protocol (TBRP) for prolong the sensor network lifetime. TBRP achieves a good performance in terms of lifetime by balancing the energy...
Provided by Islamic Azad University
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White Papers
WBRR: A Weight Based Reliable Routing Method in Mobile Ad Hoc Network
June 26, 2009, 12:00am PDT
Mobile Ad Hoc Networks (MANET) consists of a set of mobile hosts that can communicate with each other without the assistance of base stations. MANETs are heterogeneous mix of different wireless...
Provided by Islamic Azad University
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White Papers
Novel Cluster Based Routing Protocol in Wireless Sensor Networks
July 1, 2010, 12:00am PDT
In this paper, the authors propose a novel Cluster Based Routing Protocol (CBRP) for prolong the sensor network lifetime. CBRP achieves a good performance in terms of lifetime by balancing the...
Provided by Islamic Azad University
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White Papers
Grid Resource Selection Optimization With Guarantee Quality of Service by Hybrid of Genetic and Simulated Annealing Algorithms
October 22, 2010, 12:00am PDT
When there are a lot of requests for resources in a grid system, it is essential to make a good planning and resources allocation to provide a suitable QOS. As different programs need different...
Provided by Islamic Azad University
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White Papers
Reliable Multicast Routing With Local Recovery Approach in Ad Hoc Network
February 1, 2008, 12:00am PST
An ad hoc network is a multi-hop wireless network formed by a collection of mobile nodes without the intervention of fixed infrastructure. Reliable Multicast plays a significant role in many...
Provided by Islamic Azad University
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White Papers
BIOS: A New Efficient Routing Algorithm for Network on Chip
October 4, 2008, 12:00am PDT
The performance of Network-on-Chip (NoC) largely depends on the underlying routing techniques, which have two constituencies: output selection and input selection. Previous research on routing...
Provided by Islamic Azad University
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