نتایج جستجو برای: under wireless sensor network
تعداد نتایج: 1834949 فیلتر نتایج به سال:
This paper introduced about the data aggregation in wireless sensor network. We have presented SOM Based Data Aggregation Algorithm in Neural Network based Multihop Wireless Sensor Network and AdWAS: Adaptive Weighted Aggregation Scheme for Single-hop and Multi-hop Wireless Sensor Network. Among the distributed detection in neural network gives better result than the other technique when the tw...
Sensor networks are gaining importance as they have vast potential for diverse application areas like monitoring, localizing and tracking of environmental phenomenon. The sensors are constrained by extremely scarce resources, unreliable communication link and faulty nodes. There is a need to address these harsh operating conditions. Real time sensitive applications which require fault free obse...
The energy constraints in the wireless sensor network are under too much consideration. Since WSN is based on relay system and therefore each node participate in complete communication process either as a source, forwarding nodes or as a receiver. This paper presents critical reviews on recent development in various MAC protocols for saving energy in wireless sensor network by modifying duty cy...
Wireless sensor networks (WSNs) consist of a large number of sensor nodes which are capable of sensing different environmental phenomena and sending the collected data to the base station or Sink. Since sensor nodes are made of cheap components and are deployed in remote and uncontrolled environments, they are prone to failure; thus, maintaining a network with its proper functions even when und...
In wireless sensor network, traditional security mechanisms such as cryptographic methods need a large consumption of resources such as memory, speed, and communication bandwidth. And by using such techniques it is not possible to detect malicious, faulty and selfish nodes that harm to network. Alternatively, trust methods calculate trust of sensor nodes and thereby help to detect malicious, se...
T his thesis addresses the problem of developing protocols for wireless sensor networks that are energy-efficient, have predictable performance, and are able to adapt to topology changes and different communication (traffic) requirements. In wireless sensor networks, nodes work under severe resource constraints: limited battery power, limited communication bandwidth, limited computing power, an...
Today, information networks play an important role in supply chain management. Therefore, in this article, clustering-based routing protocols, which are one of the most important ways to reduce energy consumption in wireless sensor networks, are used to optimize the supply chain informational cloud network. Accordingly, first, a clustering protocol is presented using self-organizing map neu...
Energy Conservation and prolonging the life of Wireless Sensor Network is one of the major issues in the wireless sensor network as sensor nodes are highly energy constrained devices. Many routing protocols have been proposed for sensor network, especially cluster based routing protocols. Cluster based routing protocols are best known for its energy efficiency, network stability and for increas...
Wireless sensor network has many small sensor nodes that work in collaborative manner to achieve a specific task. But it is deployed in unattended environment and that is why it is prone to attacks. These attacks mainly fall into two categories that is application dependent and application independent .In this paper the focus is on the node replication attack which falls under application indep...
The paper deals with the working of wireless sensor network. In which it compare the different working of wireless sensor network. Basically there are two types of wireless sensor network, Traditional sensor network and the Hierarchical sensor network. Traditional sensor network is the already available network which uses more battery. But hierarchical sensor network introduces two level of nod...
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