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With the development of the latest technologies and changes in market demand, the wireless multi-sensor system is widely used. These multi-sensors are integrated in a way that produces an overwhelming amount of data, termed as big data. The multi-sensor system creates several challenges, which include getting actual information from big data with high accuracy, increasing processing efficiency, reducing...
Wireless Sensor Network (WSN) is a collection of sensor nodes capable for sensing instantaneously. WSNs are widely deployed in hostile environment on ad-hoc basis. Routing protocols are used to discover a suitable route among sensor nodes and transfer sensed data from one node to another node. Several routing protocols are developed and configured according to their characteristics. Ad-hoc nature...
in this paper, we have urbanized a fresh sink placement policy in Wireless Sensor Networks (WSNs). We studied the problems in previous sink placement strategies such as RSP, CNP, GOSP, SOSP, CLHM, ISP, and GSP. These previous sink placement strategies are not concerned about dynamicity of the network under consideration. The information about sensor nodes positions is not known beforehand in concerned...
Each sensor node in a wireless sensor network (WSN) mainly consumes energy to sense the environment and convey or relay the sensed data to a sink node. Once the resident energy in a sensor node is drained, this may cause incomplete sensing coverage, resulting in WSN failure. The lifetime of a network begins when the network starts working and ends when the first node becomes ineffective from energy...
The latest mobile devices such as smart phones and tablet PCs, equipped with high resolution interactive screens, highly advanced CPUs, wireless networking and multimedia processing capabilities have become very important in people's daily life. The growth of these devices' popularity has determined an increased interest from shopping malls, theme parks, institutions, convention centre, etc. to deploy...
Smart phones have gained great popularity all around the world, supporting rich media applications with Internet connectivity. Since increasing number of people own powerful mobile devices, ad-hoc WLANs can be deployed in public areas part of heterogeneous networks environments, as flexible and inexpensive alternatives to infrastructure-based approaches. However, these mobile devices are powered by...
Energy-aware routing is an effective way to extend the operational lifetime of wireless ad hoc networks. In this paper, we propose a new energy-aware routing scheme called Reliable Minimum Energy Cost Routing (RMECR). RMECR finds routes which require least amount of energy for reliable packet transfer in ad hoc networks. It defines the energy cost of packet forwarding by a node as the fraction of...
Power consumption is one of the most important problems for wireless sensor networks because of the battery limitation in each sensor. This paper presents an ant colony optimization- (ACO-) based routing algorithm to reduce power consumption. First, a grade table is built and referred to generate several possible routing paths. Then, the ACO explores these paths to reduce the power consumption of...
Owing to the technological advances in computing power and wireless communications, applications that used to be only accessible on desktop computers are increasingly run-able on wireless devices. As a result, a wireless device user may run several applications at the same time, and these different applications may generate different data types. In a mobile ad hoc network (MANET) environment, which...
A sensor network has greater potential for performance improvement, due to its versatility and the ability to monitor a large geographical area. Recent advancement in wireless communication and electronics has enabled the development of low power consumption and low cost sensor network. There are different technical issues that researchers are currently resolving. Most of the attention however has...
Nowadays most ad hoc mobile devices heavily depend on the performance of batteries. Optimizing the power consumption is a very crucial issue. To maximize the lifetime of mobile ad hoc network, the power consumption rate of each node must be evenly distributed. In this paper we present a novel power-aware routing algorithm based on mobile agents to deal with the routing mechanism in the energy-critical...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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