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Locating fixed sensing devices with a mobile anchor is attractive for covering larger deployment areas. Probabilistic localization has been shown to reduce error over deterministic approaches, yet the performance sensitivity to the geometric arrangement of anchor beacon positions remains unexplored. This paper presents a detailed description of a new RSSI-based localization algorithm which uses a...
Localization is fundamental for many wireless sensor network applications. Localizing ground-based fixed nodes through an airborne mobile anchor node is particularly useful for sensors deployed from the air, yet its dynamics are not well-understood. In this work-in-progress paper, we propose a new formulation for probabilistic localization using gradient descent, and compare it with a deterministic...
In sensor networks, data collected by sensor nodes needs to be tagged with time and location information. Localization techniques are used to determine the location information by estimating location of a sensor node. It is well known that distance measurement errors affect the accuracy of estimated location. These errors may be due to methodical or environmental factors. In this paper, we propose...
In sensor networks 802.15.4 WPAN, the most common technique used to calculate the distance between two nodes is the RSSI (Received Signal Strength Indicator) technique, because it has the advantage of not requiring additional hardware and synchronization on nodes. Some studies show that the RSSI index is fairly unreliable and often produces significant errors about the location of the nodes in the...
Localization algorithms are required for indoor wireless sensor network (WSN) applications because the identification of real positions can upgrade the importance of sensing information. In this paper, we introduce a efficient algorithm which can improve the accuracy of location identification by employing jumper setting at each sensor. The proposed algorithm perform localization more accurately than...
Localization is the subject matter that has allured the attention of many researchers in the field of wireless sensor network. It is the process of assigning or computing the location of the sensor nodes in a sensor network. Since the sensor nodes are randomly deployed, it is very important that they localize themselves, as the manual deployment of sensor node is not feasible. Thus in this paper,...
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