Mobile ad hoc networks (MANETs) represent complex distributed systems that comprise wireless mobile nodes that can freely and dynamically self-organize into arbitrary and temporary, ‘‘ad-hoc’’ network topologies, allowing people and devices to seamlessly internetwork in areas with no pre-existing communication infrastructure, e.g., disaster recovery environments. Ad hoc networking concept is no...

The ad hoc grid is a spontaneous organization of cooperating heterogeneous nodes into a logical community without a fixed infrastructure and with only minimal administrative requirements. Resource management for ad hoc grids is challenging due to the participation of heterogeneous, dynamic, autonomous and ephemeral grid nodes. The paper proposes an ad hoc grid resource management system, the pr...

Mobile ad hoc networks will often be deployed in environments where the nodes of the networks are unattended and have little or no physical protection against tampering. The nodes of mobile ad hoc networks are thus susceptible to compromise. The networks are particularly vulnerable to denial of service (DOS) attacks launched through compromised nodes or intruders. In this paper, we present a ne...

In this paper, we discuss security issues and their current solutions in the mobile ad hoc network. Ad hoc networks are a new wireless network for mobile hosts. Owe to the vulnerable nature of the mobile ad hoc network, there are many security threats that effected the development of wireless network. We evaluate the accessible in the mobile ad hoc networks and find out attacks than the convent...

Due to the complexity and high randomness, most current researches on ad hoc networks are based on simulation results and empirical analysis, lacking theoretical understanding of the ad hoc networks and their behavior. This paper presents a general ad hoc network model and derives the statistic results of link and path availability properties in ad hoc network. Simulation results are given to v...

A delay-bounded service in wireless ad hoc networks is challenging, as ad hoc networks do not provide any type of guarantees. Several protocols have been proposed to support applications without timing requirements in ad hoc networks, but the increasing demand of QoS applications, in ad hoc wireless environments, requires delay-bound service. The contribution of this paper is to propose a proto...

B ECAUSE the subject of this issue is wireless ad hoc networks, it would be beneficial to provide a definition of the phrase ad hoc as it is used in the context of mobile wireless networks. We have as a starting point the common definitions of this phrase, such as " for a specific purpose or occasion " or " for this case alone, " and many of us have served on at least one ad hoc committee. But ...

In this paper, we discuss security issues and their current solutions in the mobile ad hoc network. Owe to the vulnerable nature of the mobile ad hoc network, there are numerous security threats that disturb the development of it. We first analyse the main vulnerabilities in the mobile ad hoc networks, which have made it much easier to suffer from attacks than the traditional wired network. The...

There is still no consistent definition of general ad hoc network properties. All introduced protocols for ad hoc networks are based on different assumptions and security requirements, and are consequently suited for specific applications only. Due to the broad field of applications, a general security model can still not be found in any literature. We define two ad hoc network categories, name...