An efficient approach for trilateration in 3D positioning

Doukhnitch, Evgueni; Salamah, Muhammed; Özen, Emre

doi:10.1016/j.comcom.2008.08.019

Cited by 29 publications

(22 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We use a mathematical technique known as trilateration [19], which is a technique used to find a point that is at known distances from three fixed locations. Here the point is the impurity position I , the three fixed locations are the three neighboring atomic positions, A,B, and C, and the known distances are the bond lengths R AI ,R BI , and R CI .…”

Section: B Geometrical Interpretationmentioning

confidence: 99%

Scanning tunneling microscopy contrast of isovalent impurities on the GaAs (110) surface explained with a geometrical model

et al. 2016

View full text Add to dashboard Cite

Section: B Geometrical Interpretationmentioning

confidence: 99%

Scanning tunneling microscopy contrast of isovalent impurities on the GaAs (110) surface explained with a geometrical model

et al. 2016

View full text Add to dashboard Cite

“…측정된 거리를 반지름(r)으로 하는 원의 교점을 찾는 방 법으로 좌표를 추정하는 방법이다 [11] . 2차원 평면에서 좌표 추정을 위해서는 최소 3대의 Anchor 위치와 거리 정보가 요구되며, 3차원 공간에서 좌표 정보 …”

Section: Tof 방식을 이용한 거리 측정unclassified

Localization for Mobile Robot by Selective Anchors in Indoor GPS and EKF

Kang¹,

Yun²,

Lee³

2011

The Journal of Korea Robotics Society

View full text Add to dashboard Cite

This paper proposes a technique of indoor localization for mobile robot by so called indoor GPS and EKF. Basically the concept of indoor GPS is similar outdoor GPS, and the indoor GPS gets distances between Anchors and Tag by a ranging method of CSS and then estimates the coordinate by distances and known Anchor positions. After we performed performance test of indoor GPS system in ideal and multipath environment, we configured that the indoor GPS has internal error factors and external error factors. This paper handled a multipath problem belonging to external error factors. At first various direct physical method are introduced to fix the multipath problems, and as expected we got errors corrected considerably. And then the method of selective anchors for indoor GPS is applied. With these two level improvement of indoor GPS performance, EKF(Extended Kalman Filter) is applied to mobile robot in indoor environment. The usefulness of the proposed methods are shown by a series of experiments in a environment giving contaminated data by multipath.

show abstract

“…This tool also uses the trusted wireless clients as distributed sensors in order to find anomalies. To detect and locate RAPs it uses 3D trilateration [16]. With DWSA it is possible to detect Evil Twin and Unauthorized RAPs.…”

Section: Technique Year Modementioning

confidence: 99%

A Flexible Framework for Rogue Access Point Detection

Gonçalves

Correia

Brandão

2018

Proceedings of the 15th International Joint Conference on E-Business and Telecommunications

View full text Add to dashboard Cite

Nowadays wireless communications are ubiquitous and getting over requested. It has become a demand in modern days life; people have to be connected always and everywhere. To meet these needs there is an increasing number of WiFi Access Points (APs), located everywhere: schools, coffee shops, shopping malls, airports, trains, buses, and all the free ones from the Internet Service Providers (ISPs) distributed by users' home networks.Among all these APs how can a user be sure that is connecting to a trusted source?In a small-medium sized company, without spending much money, how do they guarantee their wireless security?In order to address these questions there is the need to detect Rogue Access Points (RAPs). There are solutions described in the literature and enterprise solutions. Relative to the latter, it has become obvious that they are not accessible to everyone (high prices), and the first ones do not address all the types of RAPs.Apart from these solutions we did a thorough study on the most commonly used and recent types of WiFi attacks. With this knowledge we were able to develop a solution to detect RAPs which covers the most commonly known attacks.The proposed solution, is a modular framework composed of Scanners, Detectors and Actuators, which are responsible for: scanning for available APs, apply a set of heuristics to detect RAPs and alert the application user. And finally, apply a countermeasure mechanism.i ResumoHoje em dia, as comunicações sem fios são ubíquas e cada vez mais requisitadas. Tornando-se uma exigência para a maioria das pessoas, causando uma necessidade de estarem ligadas, sempre e em qualquer lugar. Para responder a esta necessidade existe um número crescente de Pontos de acesso (PA) WiFi, localizados em todos os lugares: escolas, cafés, shoppings, aeroportos, comboios, autocarros e os PA gratuitos dos Internet Service Providers (ISPs) distribuídos através das redes domésticas dos utilizadores.Entre todos estes PA como é que um utilizador pode ter certeza de que se está a ligar a uma rede confiável?Numa pequena ou média empresa, sem gastar muito dinheiro, como se pode garantir a segurança da rede sem fios?De forma a responder a estas questões existe a necessidade de se detectar PA rogue. Para tal, existem soluções descritas na literatura e soluções empresariais. Estas últimas, não são acessíveis para todos (preços altos), e as primeiras não abordam todos os tipos de PA rogue.Para além das soluções mencionadas, foi feito um estudo completo aos tipos de ataques mais recentes e frequentes a redes sem fios. Desta forma, foi possível desenvolver uma solução para detectar PA rogue, que cobre os ataques mais conhecidos.A solução proposta é uma ferramenta modular composta por Scanners, Detectors e Actuators, que são responsáveis por: escutar o ar de forma a encontrar PA disponíveis, aplicar um conjunto de heurísticas para detectar PA rogue e alertar os utilizadores. E finalmente aplicar uma contramedida.iii

show abstract

An efficient approach for trilateration in 3D positioning

Cited by 29 publications

References 21 publications

Scanning tunneling microscopy contrast of isovalent impurities on the GaAs (110) surface explained with a geometrical model

Scanning tunneling microscopy contrast of isovalent impurities on the GaAs (110) surface explained with a geometrical model

Localization for Mobile Robot by Selective Anchors in Indoor GPS and EKF

A Flexible Framework for Rogue Access Point Detection

Contact Info

Product

Resources

About