The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Neighbor Discovery is a fundamental building block in Wireless Ad Hoc Networks. But the very nature of wireless mobile networks makes it easy to abuse neighbor discovery, such as the wormhole attack which relaying the HELLO packet between two far away nodes make them establishing the neighborship, and thus disrupting the routing function. In this paper, we present a reputation system for neighbor...
As Wireless Mesh Networks (WMNs) are newly emerging wireless technologies, they are designed to have huge potential for strengthening Internet deployment and access. However, they are far from mature for large-scale deployment in some applications due to the lack of the satisfactory guarantees on security. The main challenges exposed to the security of WMNs come from the facts of the shared nature...
Cognitive Radio (CR) has been considered as a promising concept for improving the utilization of limited radio spectrum resources for future wireless communications and mobile computing. As cognitive radio network (CRN) is a general wireless heterogeneous network, it is very essential for detecting the misbehaving or false nodes in the network. So in this paper we propose a trust aware model which...
This paper aims at studying and developing a key technology of dynamic visual image modeling that is based on mobile robot self-organizing network (ad-hoc). The main ideas are: using the binocular visual system installed on the mobile robot to obtain the true visual images of the scene, with three mobile robots constituting a synergistic implementation team, and synthesizing the images returned into...
One critical issue in wireless sensor networks is how to gather sensed information in an energy-efficient way since the energy is a scarce resource in a sensor node. In this paper, we propose an improved distributed clustering algorithm, which is called LEACH-W algorithm, In this algorithm, we extend low-energy adaptive clustering cluster-head selection algorithm by a factor with weight value deterministic...
In recent years, various types of ad hoc routing protocols have been studied in the mobile ad hoc networks. Specifically, the clustering hierarchical routing algorithms have been developed to increase the system performance. Hierarchical structure has inevitably brought some drawbacks, maintaining the hierarchical structure needs more complicated cluster heads selection algorithm, which may result...
One important critical issue in wireless sensor networks is how to gather sensed information in an energy efficient way since the energy is a scarce resource in a sensor node. Clustering technique has been proven to be an effective approach for data-gathering in wireless sensor networks. However, these data are characteristic of being heavily noisy, exhibiting temporal and spatial correlation. Data...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.