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Vehicular Ad Hoc Networks (VANETs) are going to be an important communication infrastructure in our moving life. The design of routing protocols in VANETs is a significant and necessary issue for supporting VANET-based applications. However, due to high mobility, frequent link disconnection, and uneven distribution of vehicles, it becomes quite challenging to establish a robust route for delivering...
Security and quality of service (QoS) are two areas of mobile ad hoc network (MANET) research which have so far been largely carried out separately. Some of the unique characteristics of MANETs make them extremely vulnerable to security attacks, and these attacks have a direct impact on QoS provisioning. We therefore argue that integrating security and QoS may be the most effective way of providing...
This paper presents a solution to counter black hole attacks in mobile ad hoc networks (MANETs). Black hole attacks are effective DoS (Denial of Service) attacks committed by fabricating routing information, attracting packets routed through them, and then dropping the packets. The ETX (Expected Transmission Count) metric is a common routing metric in MANETs. It measures the delivery ratio of a wireless...
The transmission of IP packets over WDM technology (IP-over-WDM) is expected to be the basic transmission framework of the next generation network. In this paper, a novel architecture of optical network is presented. The optical network control plane is responsible for tracking the network topology and the state of network resources, and for establishing, removing and maintaining connections. These...
Network load balancing is the ability to aggregate two or more wide area network (WAN) connections in order to achieve greater reliability and overall throughput. This paper discusses traffic technology and flow optimization in optical network. Performance optimization of networks is actually a control problem. Traffic engineering should provide sufficient control in an adaptive feedback control system...
Wireless and mobile networks represent an active research and new technology development area. In this paper we analyze wireless network and discuss the applications of wireless technology. To fully support mobility, a next generation Internet must provide ways to name and route to a much richer set of network elements than just attachment points. It should support routing in terms of names, which...
Owing to the technological advances in computing power and wireless communications, applications that used to be only accessible on desktop computers are increasingly run-able on wireless devices. As a result, a wireless device user may run several applications at the same time, and these different applications may generate different data types. In a mobile ad hoc network (MANET) environment, which...
The popularity of the Internet and its related services continues to be one of the main reasons for the explosive growth of traffic volume in global information and optical network. This paper presents an analytical approach for studying load and traffic engineering (TE) in optical network. Load balancing is common in optical networks. It is a key component of traffic engineering, link bundling, and...
In this paper, one of the QoS models for MANETs-SWAN is studied under varying conditions to provide both quantitative and qualitative assessments of the applicability of the model in different scenarios. Results and analysis from NS-2 based simulation indicate that (i) real-time (RT) applications in SWAN-enabled mobile ad hoc networks experience low and stable delays under various traffic and mobility...
In recent years, with the information increasing rapidly, WDM communication network traffic is paid more and more attentions. Traffic engineering (TE) is an interesting application in IP-based networks. TE main objective is to optimize the performance of a network through an efficient utilization of network resources. This paper discusses traffic technology and load balancing in optical networks....
In this paper we analyze wireless network and discuss the applications of wireless technology. In wireless network, the wireless devices should be able to operate independently of the broader Internet. In particular, there may be times during which the connection of a wireless device or network to the Internet is not available. During these times, wireless devices should be able to operate stably...
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