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.
One of the most important constraints on wireless sensor network is the low power consumption. Therefore, topology of wireless sensor network must focus on power conservation. It is possible to extend the lifetime of a network by controlling its topology through clustering. Topology control target tracking-oriented based on overlapping clustering in wireless sensor network is proposed in this paper...
This paper proposes an analytical study of the shadowing impact on the outage probability in cellular radio networks. We establish that the downlink other-cell interference factor, f, which is defined here as the ratio of outer cell received power to the inner cell received power, plays a fundamental role in the outage probability. From f, we are able to derive the outage probability of a mobile station...
The neighborhood information has been frequently used by protocols such as routing in sensor networks. Many methods have been proposed to protect such information in hostile environments. However, these methods can only protect neighbor relations between benign nodes. A compromised node can easily circumvent them and setup false neighbor relations with sensor nodes in many places, impacting the network...
Topology control in a wireless sensor network is useful for ensuring that the network remains connected in the presence of nodes that exhaust their energy or become altogether dysfunctional (for whatever reasons). It also ensures that all the link that can be established are energy-efficient links and the nodes utilize their energy fairly. In this paper, we propose a fair and energy efficient topology...
Topology control and energy saving is one of the most important challenges in wireless ad hoc sensor networks. There are two approaches for conserve energy in topology control algorithms. First by adjusting a node??s transmission power and second manipulating a node??s state. In this paper, multi-state k-fault tolerant topology control algorithm is presented using clustering technique to manage k...
Topology Control and energy saving is one of the most important challenges in wireless sensor networks because of Special characteristics of these networks such as limited transmission range, low bandwidth, limited power resource and the impossibility of recharging. In this paper, k-fault tolerant clustering topology control algorithm is presented. This algorithm named QoS-based clustering topology...
Multiple sensor nodes deployed in a common neighborhood to sense an event and subsequently transmit sensed information to a remote processing unit or base station, has been the recent focus of research. Tiny sensor nodes, which consist of sensing, data processing, and communicating components, leverage the idea of sensor networks based on collaborative effort of a large number of nodes. These numerous...
To increase the lifetime and scalability of a wireless sensor network (WSN) it is necessary to have control over topology of the network. Dynamic clustering is one way for achieve the above defined objective. In this paper we are proposing a multi-level hierarchal clustering approach for WSN. Our proposed approach in this paper is to create a system which will adopt a topology (i.e. size of cluster...
This paper proposes adapting dynamic network topology to match changing quality of service requirements in real-time wireless broadband networks. Based on modelling and drive tests, thresholds ensuring the quality of links for specified services are established. A method for matching network topologies according to link quality and capacity to IP services is presented. A service link quality matrix...
The multi-scenario of the topology in the hybrid ad hoc networks is studied and a novel cross layer resource scheduling scheme based on the topology is proposed in this paper. The proposed scheme integrated the attributes both of the new performance evaluation machine link resource check metric (MLRCM) and the topology space with the special multi-scenario. The power consumption of each node can be...
Wireless sensor networks (WSN) have been identified as being useful in a variety of domains from the battlefield to environmental monitoring. We motivate the security problems that sensor networks face by developing a scenario representative of a circle-distributed 2-hops network model. Threats are identified to this model and a new lightweight security solution, comprised of the topology discovery...
Energy efficiency is critical for wireless sensor networks. The data gathering process must be carefully designed to conserve energy and extend the network lifetime. For applications where each sensor continuously monitors the environment and periodically reports to a base station, a tree-based topology is often used to collect data from sensor nodes. In this work, we study the construction of a 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.