Mobile Ad hoc networks (MANETs) are composed of mobile stations communicating through wireless links, without any fixed backbone support. In these networks, limited power energy supply, and frequent topology changes caused by node mobility, makes their routing a challenging problem. TORA is one of the routing protocols that successfully copes with the nodes’ mobility side effects, but it do...

Achieving secure communication is especially challenging in wireless ad hoc networks, where no infrastructure or central authority exists, and the state and topology of the network is dynamic and fault-prone. These unique characteristics of wireless ad hoc networks make traditional cryptographic mechanisms and assumptions inappropriate. In this paper, we propose mobile agents as a solution to t...

A mobile ad hoc network is an autonomous wireless network which consists of mobile nodes without any base stations. Many routing schemes and services have been proposed for mobile ad hoc networks. However, since these schemes tend to be evaluated through simulation experiments, it is not known whether they work effectively in real environments or not. Therefore, in order to verify their practic...

This paper investigates the interworking between wireless ad hoc networks and the Internet. In other words, we consider access to the Internet via a multihop wireless network. The heterogenous communication is established with the help of specific access routers, which serve as gateways between the two kinds of networks. We describe the network scenario and its basic protocol architecture. The ...

By extending wireless networks and because of their different nature, some attacks appear in these networks which did not exist in wired networks. Security is a serious challenge for actual implementation in wireless networks. Due to lack of the fixed infrastructure and also because of security holes in routing protocols in mobile ad hoc networks, these networks are not protected against attack...

The advent of ubiquitous computing and the proliferation of portable computing devices have raised the importance of mobile and wireless networking. At the same time, the popularity of group-oriented computing has grown tremendously. However, little has been accomplished to-date in bringing together the technologies for group-oriented communication and mobile networking. In particular, most mod...

Over the past decade wireless multi-hop ad-hoc networks have received a tremendous amount of research focus. Mobile devices equipped with wireless short range communication technologies make possible new applications for spontaneous communication, interaction and collaboration. The collaboration is used to facilitate communication when mobile devices are not able to establish direct communicati...

The routing protocols meant for wired networks can not be used for mobile ad hoc networks because of the mobility of networks. The ad hoc routing protocols can be divided into two classes :table-driven and on-demand. This paper discusses routing protocols belonging to each category. See Also: TCP Extensions for Wireless Networks | Evolution Toward Third Generation Wireless Networks | In-buildin...