Volume 3, Issue 8 (2007) | Journal of Computer Science

Ad Hoc Mobile Wireless Networks Routing Protocols - A Review

Geetha Jayakumar — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.574.582

Mobile ad hoc networks(MANET) represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self organize into arbitrary and temporary ad-hoc network topolo...

An Efficient Algorithm for Capacitated Multifacility Location Problems

Chansiri Singhtaun — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.583.591

In this paper, a squared-Euclidean distance multifacility location problem with inseparable demands under balanced transportation constraints is analyzed. Using calculus to project the problem onto th...

Rule Extraction from Radial Basis Functional Neural Networks by Using Particle Swarm Optimization

M. R. Senapati — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.592.599

Radial basis functional neural networks (RBFNN) provide an outstanding possibility for generating rules for solving pattern classification problems. One of the most important factors in RBFNN is findi...

Automated Breast Cancer Diagnosis based on GVF-Snake Segmentation, Wavelet Features Extraction and Neural Network Classification

Abderrahim Sebri — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.600.607

Breast cancer accounts for the second most cancer diagnoses among women and the second most cancer deaths in the world. In fact, more than 11000 women die each year, all over the world, because this d...

Comparison of Speech Features on the Speech Recognition Task

Iosif Mporas — 2007-12-31

Journal of Computer Science, Published online: 31 December 2007; doi:10.3844/jcssp.2007.608.616

In the present work we overview some recently proposed discrete Fourier transform (DFT)- and discrete wavelet packet transform (DWPT)-based speech parameterization methods and evaluate their performan...

Recovery in Distributed Systems from Transient and Permanent Faults

M. Aliouat — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.617.623

The recovery mechanism from transient fault in distributed systems has been intensively studied in the past, but to our best knowledge, none of these studies has been devoted to cope together with tra...

Teaching Computer Organization and Architecture Using Simulation and FPGA Applications

Kasim M. Al-Aubidy — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.624.632

This paper presents the design concepts and realization of incorporating micro-operation simulation and FPGA implementation into a teaching tool for computer organization and architecture. This teach...

An Innovative Technique of Texture Classification and Comparison Based on Long Linear Patterns

V. Vijaya Kumar — 2007-08-28

Journal of Computer Science, Published online: 28 August 2007; doi:10.3844/jcssp.2007.633.638

The present paper proposes a method of texture classification based on long linear patterns. Linear patterns of long size are bright features defined by morphological properties: linearity, connectivi...

Operational Semantics for Lazy Evaluation

Mahmoud A. Abou Ghaly — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.639.645

An operational semantics for lazy evaluation of a calculus without higher order functions was defined. Although it optimizes many aspects of implementation, e.g. there is a sharing in the recursive co...

Topology Discovering and Power saving Mechanism for Routing in a Tree of Ad-hoc Wireless Networks

Arwa Zabian — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.646.657

Power management in mobile network is an open challenges where the power level in the network influences the network life time. However, there are a trade off between the power consumption and the con...

An Improved Resource Reservation Protocol

Desire Oulai — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.658.665

The classical resource reservation protocol (RSVP) is a flow-based signaling protocol used for reserving resources in the network for a given session. RSVP maintains state information for each reserva...

A Novel Service Mobility Architecture for SIP Environments

Thierno Bah — 2007-08-31

Journal of Computer Science, Published online: 31 August 2007; doi:10.3844/jcssp.2007.666.672

Lately, the proliferation of small portable devices has driven the introduction of a new mobility concept called service mobility. In order to support service mobility, we introduce a new architecture...