Volume 3, Issue 6 (2007) | Journal of Computer Science

Digital Identities and the Promise of the Technology Trio: PKI, Smart Cards, and Biometrics

A. M. Al-Khouri — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.361.367

This article looks at one of the evolving crimes of the digital age; identity theft. It argues and explains that if three key technologies were implemented together namely biometrics, smart cards, an...

Cross Layer Optimization Based on Rate Distribution in Multirate Wireless Sensor Network

Honggang Wang — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.368.375

It is important to increase the Wireless Sensor Network (WSN) lifetime, due to its limited energy resource, while meeting the constraints of applications. Recent Advances for In-Network Processing (IN...

Low Power Hardware Implementation of High Speed FFT Core

M. Kannan — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.376.382

Applications based on Fast Fourier Transform (FFT) such as signal and image processing require high computational power. This paper proposes the implementation of radix-4 based parallel-pipelined Fast...

Agent-Based Design for E-learning Environment

Khadidja Harbouche — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.383.389

We presented an agent-based e-learning environment. Our aim was to allow many users to interact collectively and intelligently with the environment. In this cooperation model, human users and artifici...

Mobility Management Technique for Real Time Traffic in 802.11 Networks

Gurpal Singh — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.390.398

A practical mobility management technique aimed at reducing handoff latency to less than 10ms has been proposed and implemented in this paper. Handoff latency has been reduced by decoupling scanning f...

Qualitative Ferromagnetic Hysteresis Modeling

M. Mordjaoui — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.399.405

In determining the electromagnetic properties of magnetic materials, hysteresis modeling is of high importance. Many models are available to investigate those characteristics but they tend to be compl...

A Different Text Attack Algorithm in Integer Factoring Based Schemes

Mohammed A. AL-Fayoumi — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.406.409

Text attack in integer factoring based schemes is generally calculated as an intrinsic characteristic of its symmetric attack. In this article, we illustrate that asymmetric integer factoring based sc...

Pre-editing and Recursive-Phrase Composites for a Better English-to-Arabic Machine Translation

Mansoor Al-A'ali — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.410.418

This research presents an approach for an English-to-Arabic Machine Translation System based on Building correct grammar and phrase structures first and then automatically deriving Translation Rules f...

The Performance of Maximum Likelihood, Spectral Angle Mapper, Neural Network and Decision Tree Classifiers in Hyperspectral Image Analysis

Helmi Zulhaidi Mohd Shafri — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.419.423

Several classification algorithms for pattern recognition had been tested in the mapping of tropical forest cover using airborne hyperspectral data. Results from the use of Maximum Likelihood (ML), Sp...

Stop Conditions Of BB84 Protocol Via A Depolarizing Channel (Quantum Cryptography)

Iyed Ben Slimen — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.424.429

BB84 (Bennett and Brassard 1984) is one of the well known protocols of quantum keys distribution. It is built to allow two interlocutors commonly called Alice and Bob to share two similar binary keys ...

Chi Square Feature Extraction Based Svms Arabic Language Text Categorization System

Abdelwadood Moh’d A MESLEH — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.430.435

This paper aims to implement a Support Vector Machines (SVMs) based text classification system for Arabic language articles. This classifier uses CHI square method as a feature selection method in the...

Enhancement of Search Results Using Dynamic Document Seed Reranking Algorithm

Angelina Geetha — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.436.440

We proposed an algorithm to improve the precision of top retrieved documents by re-ordering the retrieved documents in the initial retrieval. To re-order the documents, we first automatically extract ...

Simulation of the Enhanced Associativity Based Routing Protocol for Mobile Ad Hoc Networks (MANET)

Ayman Mansour Murad — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.441.448

The simulations results showed that the overall EABR enhancement, when compared with ABR, in terms of communication overhead was ranging from 36% to 56%. While the overall EABR enhancement in terms o...

Formal Validation of the Safety Property of Sack Protocol Using Theorem Proving Technique

Z. Shukur — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.449.453

This paper demonstrates the formal validation process of safety properties of Selective ACKnowledgment (SACK) protocol. SACK is a complex communication protocol as it is used in various types of distr...

Wavelet and ANN Based Relaying for Power Transformer Protection

S. Sudha — 2007-06-30

Journal of Computer Science, Published online: 30 June 2007; doi:10.3844/jcssp.2007.454.460

This paper presents an efficient wavelet and neural network (WNN) based algorithm for distinguishing magnetizing inrush currents from internal fault currents in three phase power transformers. The wav...