نتایج جستجو برای: wireless mobile ad

تعداد نتایج: 327865  

2006
DAGMARA SPIEWAK THOMAS ENGEL

Nowadays, the world gets more and more mobile in such a way that communication services are desirable anytime and anywhere. In this context, Mobile wireless ad-hoc networks, including mobile ad-hoc networks (MANETs) and Mesh-Networks, are systems of nodes that interconnect in a dynamical self-organized way providing an attraction especially during mission-crucial or time-crucial applications, f...

2011
Lokesh Laddhani Umesh Kumar Singh

A mobile ad hoc network is comprised of mobile hosts that can communicate with each other using wireless links. It is also possible to have access to some host in a fixed infrastructure depending on the kind of the mobile ad hoc network. Mobile ad hoc networks can be realized by different networks such as body area network (BAN), vehicular ad hoc network (VANET), wireless sensor network (WSN). ...

Journal: :journal of computer and robotics 0
maryam fathi ahmadsaraei faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran abolfazl toroghi haghighat faculty of computer and information technology engineering, qazvin branch, islamic azad university, qazvin, iran

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...

2003
Barbara Hughes Vinny Cahill

Most previous work on real-time event-based communication has assumed infrastructure-based networks. The underlying assumption of this work is that application components are stationary and that a fixed network infrastructure exists to facilitate communication between them [1]. Ad hoc wireless networks comprise sets of mobile nodes connected by wireless links that form arbitrary wireless networ...

Mina Vajed Khiavi Sajjad Jahanbakhsh Gudakahriz, SHahram Jamali

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...

2001
Tamer Demir

An ad hoc network is a collection of wireless mobile hosts forming a temporary network without the aid of any established infrastructure or centralized administration. In such an environment, it may be necessary for one mobile host to want the aid of other hosts in forwarding a packet to its destination, due to the limited range of each mobile host's wireless transmissions. In this paper Ad Hoc...

2006
Weider D. Yu Yan Chen

Most peer-to-peer file storage sharing systems work on wired networks. Due to the multi-hop wireless communication nature in ad-hoc networks, the development of mobile ad-hoc network file storage sharing system faces many challenges. In this paper, a hypothetical partitionable mobile file system (PMFS) is proposed. This new PMFS is a distributed file storing/sharing system built on partitionabl...

2002
Nitin H. Vaidya

A mobile ad hoc network is a collection of mobile wireless nodes that can dynamically form a network without necessarily using any pre-existing network infrastructure. In general, routes between nodes in an ad hoc network may include multiple hops. Due to the potential ease of deployment, many practical applications have been conceived for ad hoc networks, including personal area networking, ho...

2012
Svilen Ivanov Edgar Nett

Wireless Mesh Network (WMN) is an ad-hoc network with a fixed network infrastructure (see an example in figure 1). The physical structure of a WMN includes base stations, a backbone and mobile stations. The base stations (also known as mesh routers or mesh points) are static wireless nodes, forming the network infrastructure and providing wireless network access to the mobile stations. The back...

Mobile ad hoc networks (MANET) are constructed by mobile nodes without access point. Since MANET has certain constraints, including power shortages, an unstable wireless environment and node mobility, more power-efficient and reliable routing protocols are needed. The OLSR protocol is an optimization of the classical link state algorithm. OLSR introduces an interesting concept, the multipoint r...

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