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The mobility of nodes with a purpose called as robotic-mobility is used for replenishing energy to strategic military applications. Connected dominating set(CDS) provides a virtual backbone in adhoc network. Assuming a CDS based backbone in place, we give a technique of maintaining the location of mobile node for a given topology setting. We show that using a weighted CDS reduces the maintenance of...
Target tracking and environment monitoring is one of the important applications of wireless sensor networks (WSN). A class of target tracking algorithms is prediction-based algorithms which are aiming to reduce the power consumption in WSN. In this paper we present a prediction-based target tracking algorithm in which nodes form a hierarchical structure and each node tries to build a proper prediction...
Tracking mobile targets using sensor networks is a challenging task because of the impacts of in-the-flled factors such as environment noise, sensing irregularity and etc. This paper proposes a robust tracking framework using node sequences, an ordered list extracted from unreliable sensor readings. Instead of estimating each position point separately in a movement trace, we convert the original tracking...
In this paper we develop a simple yet effective heuristic algorithm to estimate the location of a sensor node in wireless sensor networks. Our method utilizes a simple and inexpensive received signal strength (RSS) measurement at a node to maximize the maximum likelihood (ML) function in a localization problem. We show via numerical results that the location estimations obtained from the new method...
Sensor networks include large number of low cost sensor nodes with small processing capabilities that are deployed over an area in an attempt to do interest sensing task. In this paper we examine the role of very simple and noisy sensors for distributed tracking problem that is one of these tasks. We use a proposed binary sensor model, where each sensorpsilas value is converted reliably to one bit...
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