The localization is an important technology for the sensor network. In this paper, we improved the large error of the Bonding-box algorithm in the case of the two anchor nodes and the disadvantages of the indistinguis...
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The localization is an important technology for the sensor network. In this paper, we improved the large error of the Bonding-box algorithm in the case of the two anchor nodes and the disadvantages of the indistinguishable localization of coordinates. The algorithm is combined with the ranging technology RSSI, and is simple to be achieved without additional hardware equipment. It is found during the experiment that it has low accuracy of localization at the edge of sensor network on the situation with a small number of anchor nodes(mainly has two anchor nodes). And all the nodes in the range are located in the center of the range, which results in a low degree of identification. In this paper, we propose a new algorithm to reduce the error and improve the identifiable degree. MATLAB simulation is used to show that the algorithm is better than the Bonding-box algorithm which is based on the weighted centroid, and it can be applied to all of the current improved algorithms which are based on Bonding-box algorithm. And this algorithm could reduce the error of the improved algorithm.
In patch-and-stitch localization algorithms, a flip-error refers to the kind of error in which a patch is stitched to the map as being wrongly reflected. In this paper, we present an anchor-free localization algorithm...
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ISBN:
(纸本)9781424431755
In patch-and-stitch localization algorithms, a flip-error refers to the kind of error in which a patch is stitched to the map as being wrongly reflected. In this paper, we present an anchor-free localization algorithm which tries to detect and prevent flip errors. The flip error prevention is achieved by two filtering mechanisms: the flip-ambiguity test and the flip-conflict detection. We evaluate the performances of proposed techniques though simulations and show that they achieve significant performance improvements.
Ultra Wideband solves the major problems of traditional wireless technology in *** this paper,a UWB positioning model based on the mixed algorithm of TOA（time of arrival）,RSSI（Received Signal Strength Indication）a...
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Ultra Wideband solves the major problems of traditional wireless technology in *** this paper,a UWB positioning model based on the mixed algorithm of TOA（time of arrival）,RSSI（Received Signal Strength Indication）and TDOA（Time Difference of Arrival） is proposed,and the computer simulation is carried *** initial value which is closer to the real value is obtained by the TOA mixed RSSI *** the initial value is brought into the Taylor algorithm of TDOA,which solves the problem that the Taylor algorithm is not *** the simulation results show that the hybrid algorithm is more accurate when the SNR is high and the number of nodes is high.
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