Computer Networks and Distributed Systems
Vehicular Networks: A Survey on Architecture, Communication Technologies and Applications

Mohammadreza Pourkiani; Sam Jabbehdari; Ahmad Khademzadeh

Volume 2, Issue 3 , August 2016, , Pages 43-53

Abstract
  The Intelligent Transportation System (ITS) provides wireless and mobile communication between vehicles and infrastructure to improve the safety of transportation and make the journey more enjoyable. This system consists of many fixed and mobile nodes (Vehicles, Trains, Vessels, Air planes), Wireless ...  Read More

Computer Networks and Distributed Systems
Improvement of the mechanism of congestion avoidance in mobile networks

Maryam Bagheri; Bita Amirshahi; Mehdi Khalili

Volume 2, Issue 2 , May 2016, , Pages 43-48

Abstract
  Mobile ad hoc network congestion control is a significant problem. Standard mechanism for congestion control (TCP), the ability to run certain features of a wireless network, several mutations are not common. In particular, the enormous changes in the network topology and the joint nature of the wireless ...  Read More

Computer Networks and Distributed Systems
An efficient solution for management of pre-distribution in wireless sensor networks

Asghar Dolatabadi; Hamid Haj Seyyed javadi

Volume 2, Issue 2 , May 2016, , Pages 49-55

Abstract
  A sensor node is composed of different parts including processing units, sensor, transmitter, receiver, and security unit. There are many nodes in a sensor unit. These networks can be used for military, industrial, medicine, environmental, house, and many other applications. These nodes may be established ...  Read More

Computer Networks and Distributed Systems
EIDA: An Energy-Intrusion aware Data Aggregation Technique for Wireless Sensor Networks

Nafiseh Daneshgar; M. Habibi Najafi; Mohsen Jahanshahi; Ehsan Ahvar

Volume 2, Issue 1 , February 2016, , Pages 1-8

Abstract
  Energy consumption is considered as a critical issue in wireless sensor networks (WSNs). Batteries of sensor nodes have limited power supply which in turn limits services and applications that can be supported by them. An efcient solution to improve energy consumption and even trafc in WSNs is Data Aggregation ...  Read More

Computer Networks and Distributed Systems
Hierarchal Grouping Strategy with Adaptive Power Tuning in ZigBee Wireless Sensor Networks

Mehran Pourmohammad Abdollahi; Javad Musevi Niya; Payman Mahmoudi Biroun

Volume 2, Issue 1 , February 2016, , Pages 27-36

Abstract
  Designing wireless sensor networks should meet appropriate parameters such as quality of service (QoS) defined by different users. The variable physical conditions of the environment, processing and transmission power limitations and limited communication capabilities are the most important obstacles ...  Read More

Computer Networks and Distributed Systems
Revolution in E-Learning by the Modern Educational Model in Mobile Learning

razieh barzegar

Volume 2, Issue 1 , February 2016, , Pages 45-52

Abstract
  education has stepped to an ultra-place and time in 21st century. We have entered to digital and wireless communication century which mobile technologies have changed the process of education and instruction. The application of these mobile technologies for creation of knowledge, attitude and skill in ...  Read More

Computer Networks and Distributed Systems
Reliability and Availability Improvement in Economic Data Grid Environment Based On Clustering Approach

Ali Abbasi; Amir Masoud Rahmani; Esmaeil Zeinali Khasraghi

Volume 1, Issue 4 , November 2015, , Pages 1-14

Abstract
  Abstract - One of the important problems in grid environments is data replication in grid sites. Reliability and availability of data replication in some cases is considered low. To separate sites with high reliability and high availability of sites with low availability and low reliability, clustering ...  Read More

Computer Networks and Distributed Systems
TASA: A New Task Scheduling Algorithm in Cloud Computing

Somayeh Taherian Dehkordi; Vahid Khatibi Bardsiri

Volume 1, Issue 4 , November 2015, , Pages 25-32

Abstract
  Cloud computing refers to services that run in a distributed network and are accessible through common internet protocols. It merges a lot of physical resources and offers them to users as services according to service level agreement. Therefore, resource management alongside with task scheduling has ...  Read More

Computer Networks and Distributed Systems
Combining Harmony search algorithm and Ant Colony Optimization algorithm to increase the lifetime of Wireless Sensor Networks

Zahra Kamaei; Hamidreza Bakhshi; Behrooz Masoumi

Volume 1, Issue 3 , August 2015, , Pages 9-16

Abstract
  Wireless Sensor Networks are the new generation of networks that typically are formed great numbers of nodes and the communications of these nodes are done as Wireless. The main goal of these networks is collecting data from neighboring environment of network sensors. Since the sensor nodes are battery ...  Read More

Computer Networks and Distributed Systems
Optimization Task Scheduling Algorithm in Cloud Computing

Somayeh Taherian Dehkordi; Vahid Khatibi Bardsiri

Volume 1, Issue 3 , August 2015, , Pages 17-22

Abstract
  Since software systems play an important role in applications more than ever, the security has become one of the most important indicators of softwares.Cloud computing refers to services that run in a distributed network and are accessible through common internet protocols. Presenting a proper scheduling ...  Read More

Computer Networks and Distributed Systems
A Near Optimal Approach in Choosing The Appropriate Physical Machines for Live Virtual Machines Migration in Cloud Computing

Seyedeh Roudabeh Hosseini; Sepideh Adabi; Reza Tavoli

Volume 1, Issue 3 , August 2015, , Pages 23-32

Abstract
  Migration of Virtual Machine (VM) is a critical challenge in cloud computing. The process to move VMs or applications from one Physical Machine (PM) to another is known as VM migration. In VM migration several issues should be considered. One of the major issues in VM migration problem is selecting an ...  Read More

Computer Networks and Distributed Systems
Hybrid Key pre-distribution scheme for wireless sensor network based on combinatorial design

Hamid Haj Seyyed Javadi; Mohaddese Anzani

Volume 1, Issue 3 , August 2015, , Pages 33-38

Abstract
  Key distribution is an important problem in wireless sensor networks where sensor nodesare randomly scattered in adversarial environments.Due to the random deployment of sensors, a list of keys must be pre-distributed to each sensor node before deployment. To establish a secure communication, two nodes ...  Read More

Computer Networks and Distributed Systems
HF-Blocker: Detection of Distributed Denial of Service Attacks Based On Botnets

Bita Amirshahi; Ali Ahangari

Volume 1, Issue 3 , August 2015, , Pages 39-45

Abstract
  Abstract—Today, botnets have become a serious threat to enterprise networks. By creation of network of bots, they launch several attacks, distributed denial of service attacks (DDoS) on networks is a sample of such attacks. Such attacks with the occupation of system resources, have proven to be ...  Read More

Computer Networks and Distributed Systems
A Genetic Programming-based trust model for P2P Networks

Mahdi Sattarivand

Volume 1, Issue 2 , May 2015, , Pages 9-14

Abstract
  Abstract— Peer-to-Peer ( P2P ) systems have been the center of attention in recent years due to their advantage . Since each node in such networks can act both as a service provider and as a client , they are subject to different attacks . Therefore it is vital to manage confidence for these vulnerable ...  Read More

Computer Networks and Distributed Systems
Topology Control in Wireless Sensor Network using Fuzzy Logic

Samaneh Nazari Dastjerdi; Hamid Haj Seyyad Javadi

Volume 1, Issue 2 , May 2015, , Pages 39-44

Abstract
  Network sensors consist of sensor nodes in which every node covers a limited area. The most common use ofthese networks is in unreachable fields.Sink is a node that collects data from other nodes.One of the main challenges in these networks is the limitation of nodes battery (power supply). Therefore, ...  Read More