TDOA-based optical wireless indoor localization using LED ceiling lamps

Jung, Sang Youn; Hann, Swook; Park, Chang‐Soo

doi:10.1109/tce.2011.6131130

Cited by 340 publications

(223 citation statements)

References 16 publications

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“…It was shown in [180] that the number of LED lamps is usually more than that of the WiFi APs, which is a potential advantage of the triangulation based indoor localization technique. A practical VLC-based localization scheme was proposed in [180], where the localization accuracy is around ∼0.4 m. Valuable research has also been undertaken related to VLC-based positioning in [96], [181]- [187].…”

Section: Internet-of-thingsmentioning

confidence: 99%

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Zhang

Hanzo

2018

IEEE Commun. Surv. Tutorials

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Abstract-In order to counteract the explosive escalation of wireless tele-traffic, the communication spectrum has been gradually expanded from the conventional radio frequency (RF) band to the optical wireless (OW) domain. By integrating the classic RF band relying on diverse radio techniques and optical bands, the next-generation heterogeneous networks (HetNets) are expected to offer a potential solution for supporting the ever-increasing wireless tele-traffic. Owing to its abundant unlicensed spectral resources, visible light communications (VLC) combined with advanced illumination constitute a competent candidate for complementing the existing RF networks. Although the advantages of VLC are multi-fold, some challenges arise when incorporating VLC into the classic RF HetNet environments, which may require new system architectures. The user-centric (UC) design principle for VLC environments constitutes a novel and competitive design paradigm for the super dense multi-tier cell combinations of HetNets. The UC concept may be expected to become one of the disruptive techniques to be used in the forthcoming fifthgeneration era. This paper provides a comprehensive survey of visible-light-aided OW systems with special emphasis on the design and optimization of VLC networks, where the radically new UC design philosophy is reviewed. Finally, design guidelines are provided for VLC systems.

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Section: Internet-of-thingsmentioning

confidence: 99%

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Zhang

Hanzo

2018

IEEE Commun. Surv. Tutorials

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“…Assume that: (2) Then the relationship of image point between photo coordinate system and LED coordinate space is shown as follows:…”

Section: Web Of Conferences Matecmentioning

confidence: 99%

“…Currently, indoor positioning technology based on visible light communication can be divided into non-visual and visual positioning. Non-visual technology includes LED identification positioning [1] (LED-ID), time difference of arrival positioning [2] (TDOA), angle of arrival positioning [3] (AOA) and received signal strength positioning [4] (RSS). Two methods of visual positioning technology are proposed currently.…”

Section: Introductionmentioning

confidence: 99%

Research on the Collinear Equation Model of Visual Positioning Based on Visible Light Communication

Wang

Gong

Shi

2015

MATEC Web of Conferences

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INTRODUCTIONWith the continuous development of visible light communication technology, its high-speed, wide-bandwidth and no electromagnetic radiation characteristics have brought new opportunities for indoor navigation and positioning. Visible light communication can provide communication services in the electromagnetic constrained scenarios such as airplane, hospitals and mines, moreover, its high-precision navigation and positioning services bring a broad development. Currently, indoor positioning technology based on visible light communication can be divided into non-visual and visual positioning. Non-visual technology includes LED identification positioning [1] (LED-ID), time difference of arrival positioning [2] (TDOA), angle of arrival positioning [3] (AOA) and received signal strength positioning [4] (RSS). Two methods of visual positioning technology are proposed currently. One is the double image sensor positioning scheme which using more than 4 different colors of light to distinguish the optical signals [5] , the other positioning scheme is using the collinear relationship between multiple lamps with same sensor to get the terminal position [6] .In this paper, a double-visual-projection positioning method is proposed, which uses a photodiode (PD) array and the mobile terminal front camera as image sensor to image the LED lights. Due to the imaging principle of mobile terminal front camera and the space coordinates relationship between mobile terminals and LEDs which are different from traditional photogrammetry methods, mathematical model is not the same. Therefore, this paper put forward a collinear equation model suiting for indoor positioning with mobile terminal front camera, and a hardware-in-loop simulation has been conducted to verify the collinear equation.

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“…기술에 대한 연구 [3][4][5][6][7][8] 가 활발히 진행되고 있다. 실내 환경에서 천장에 위치한 LED 의 위치에 따른 localization 성능에 대한 연구가 진행되었고 [3,4] , TDOA (time difference of arrival)을 이용한 측위 기 법도 연구되었다 [5,6] .…”

Section: 현재까지 가시광 무선 통신을 이용한 다양한 측위unclassified

“…실내 환경에서 천장에 위치한 LED 의 위치에 따른 localization 성능에 대한 연구가 진행되었고 [3,4] , TDOA (time difference of arrival)을 이용한 측위 기 법도 연구되었다 [5,6] . 가시광 네트워크와 Zigbee 네트 워크 망을 이용한 hybrid localization 기법 [7] 과 카메라 를 이용해 정밀 측위를 수행한 기법 [8] [9] .…”

Section: 현재까지 가시광 무선 통신을 이용한 다양한 측위unclassified

VLC Based Positioning Scheme in Vehicle-to-Infra(V2I) Environment

Kim¹,

Song

Lee³

et al. 2015

The Journal of Korean Institute of Communications and Informati

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Although GPS technology for location positioning system has been widely used, it is difficult to be used in intelligent transport systems, due to the large positioning error and limited area for receiving radio signals.Thanks to the rapid development of LED technology, LED lights become popular in many applications.Especially, visible light communications (VLC) has raised a lot of interests because of the simultaneous functioning of LED illumination and communication. Recent studies on positioning system using VLC mainly focused on indoor environments and still difficult to satisfy positioning accuracy and simple implementation simultaneously. In this paper, we propose a positioning system based on VLC using the coordinate information of LEDs installed on the road infrastructure. Extracting the LED signal, obtained through VLC, from the easily accessible camera image, it is possible to estimate the position of the car on the road. Simulation results show that the proposed scheme can achieve a high positioning accuracy of 1 m when large number of pixels is utilized and the distance from the LED light is close.

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TDOA-based optical wireless indoor localization using LED ceiling lamps

Cited by 340 publications

References 16 publications

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Research on the Collinear Equation Model of Visual Positioning Based on Visible Light Communication

VLC Based Positioning Scheme in Vehicle-to-Infra(V2I) Environment

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