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Visible Light Communication Based Indoor Localization

Author : Mohsen Kavehrad

Publisher : CRC Press

Page : 136 pages

File Size : 33,34 MB

Release : 2019-11-18

Category : Science

ISBN : 1000712478

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Book Description

This book demonstrates the research on VLC based indoor localization in four aspects: first, it constructs the concept and model of the system; second, positioning algorithms, as the main issue in indoor localization, are detailed; third, many approaches are proposed to further improve the positioning performance; fourth, challenges will be detailed. Impulse response with multipath reflections are analyzed. Orthogonal frequency division multiplexing (OFDM) is proposed, and positioning performance is largely improved compared to On-off-keying (OOK) modulation. The readers will get a broad view of VLC based indoor localization from the background to the future challenges.





Visible Light Communication Based Indoor Localization

Author : Mohsen Kavehrad

Publisher : CRC Press

Page : 169 pages

File Size : 30,78 MB

Release : 2019-11-18

Category : Science

ISBN : 1000712230

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Book Description

This book demonstrates the research on VLC based indoor localization in four aspects: first, it constructs the concept and model of the system; second, positioning algorithms, as the main issue in indoor localization, are detailed; third, many approaches are proposed to further improve the positioning performance; fourth, challenges will be detailed. Impulse response with multipath reflections are analyzed. Orthogonal frequency division multiplexing (OFDM) is proposed, and positioning performance is largely improved compared to On-off-keying (OOK) modulation. The readers will get a broad view of VLC based indoor localization from the background to the future challenges.



Visible Light Communication

Author : Shlomi Arnon

Publisher : Cambridge University Press

Page : 223 pages

File Size : 26,98 MB

Release : 2015-03-05

Category : Technology & Engineering

ISBN : 1316240444

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Book Description

Visible light communication (VLC) is an evolving communication technology for short-range applications. Exploiting recent advances in the development of high-power visible-light emitting LEDs, VLC offers an energy-efficient, clean alternative to RF technology, enabling the development of optical wireless communication systems that make use of existing lighting infrastructure. Drawing on the expertise of leading researchers from across the world, this concise book sets out the theoretical principles of VLC, and outlines key applications of this cutting-edge technology. Providing insight into modulation techniques, positioning and communication, synchronisation, and industry standards, as well as techniques for improving network performance, this is an invaluable resource for graduate students and researchers in the fields of visible light communication, optical wireless communication, and industrial practitioners in the field of telecommunications.



Visible Light Communications

Author : Zabih Ghassemlooy

Publisher : CRC Press

Page : 590 pages

File Size : 38,88 MB

Release : 2017-06-26

Category : Technology & Engineering

ISBN : 1498767540

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Book Description

Visible Light Communications, written by leading researchers, provides a comprehensive overview of theory, stimulation, design, implementation, and applications. The book is divided into two parts – the first devoted to the underlying theoretical concepts of the VLC and the second part covers VLC applications. Visible Light Communications is an emerging topic with multiple functionalities including data communication, indoor localization, 5G wireless communication networks, security, and small cell optimization. This concise book will be of valuable interest from beginners to researchers in the field.



Visible Light Communication and Positioning

Author : Chen Gong

Publisher : MDPI

Page : 144 pages

File Size : 15,29 MB

Release : 2019-11-04

Category : Technology & Engineering

ISBN : 3039214357

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Book Description

In recent years, wireless communications have significantly evolved due to the advanced technology of smartphones;, portable devices; and the rapid growth of Internet of Things, e-Health, and intelligent transportation systems . Moreover, there is anare increasing need fors of emerging intelligent services like positioning and sensing in athe future intelligence society. Recent years have witnessed the growing research interests and activities in the communication and intelligencet services in the optical wireless spectrum, as a complementary technology to more established radio frequency (RF)-based systems, to overcome the spectrum sparsity and increases data rates in crowded locations, due to the limited transmission range and interference. The OWC technology offers advantages such as free license, wide bandwidth, inherent security, no RF electromagnetic interference, and immunity to electromagnetic interference. The attractive applications of the optical spectrum include ultra-violet tactic communication, blue/green underwater communication, visible light positioning, and vehicular communication/sensing in intelligent transportation systems. The present Iissue, as named "Visible Light Communication and Positioning", focuses on visible light communication and visible light positioning, where four papers are on visible light communication and three papers are on visible light positioning. For visible light communication, the published works focus on the devices, the physical-layer techniques, and the system work aspects. Besides VLC, visible light positioning works include fingerprint-based indoor positioning system for multiple reflections, the impact of LED tilt on visible light positioning accuracy, and a mobile optoelectronic tracking system based on feedforward control.





Innovations in Electronics and Communication Engineering

Author : H. S. Saini

Publisher : Springer

Page : 793 pages

File Size : 27,69 MB

Release : 2020-06-24

Category : Technology & Engineering

ISBN : 9789811531712

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Book Description

This book is a collection of the best research papers presented at the 8th International Conference on Innovations in Electronics and Communication Engineering at Guru Nanak Institutions Hyderabad, India. Featuring contributions by researchers, technocrats and experts, the book covers various areas of communication engineering, like signal processing, VLSI design, embedded systems, wireless communications, and electronics and communications in general, as well as cutting-edge technologies. As such, it is a valuable reference resource for young researchers.



Renewable Energy for Smart and Sustainable Cities

Author : Mustapha Hatti

Publisher : Springer

Page : 569 pages

File Size : 40,7 MB

Release : 2018-11-23

Category : Technology & Engineering

ISBN : 303004789X

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Book Description

This book features cutting-edge research presented at the second international conference on Artificial Intelligence in Renewable Energetic Systems, IC-AIRES2018, held on 24–26 November 2018, at the High School of Commerce, ESC-Koléa in Tipaza, Algeria. Today, the fundamental challenge of integrating renewable energies into the design of smart cities is more relevant than ever. While based on the advent of big data and the use of information and communication technologies, smart cities must now respond to cross-cutting issues involving urban development, energy and environmental constraints; further, these cities must also explore how they can integrate more sustainable energies. Sustainable energies are a major determinant of smart cities’ longevity. From an environmental and technological standpoint, these energies offer an optimal power supply to the electric network while creating significantly less pollution. This requires flexibility, i.e., the availability of supply and demand. The end goal of any smart city is to improve the quality of life for all citizens (both in the city and in the countryside) in a way that is sustainable and respectful of the environment. This book encourages the reader to engage in the preservation of our environment, every moment, every day, so as to help build a clean and healthy future, and to think of the future generations who will one day inherit our planet. Further, it equips those whose work involves energy systems and those engaged in modelling artificial intelligence to combine their expertise for the benefit of the scientific community and humanity as a whole.



Indoor Localization System Based on Visible Light Communication

Author : Wenjun Gu

Publisher :

Page : pages

File Size : 14,23 MB

Release : 2016

Category :

ISBN :

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Book Description

With the rapid development of Global Positioning Systems (GPS), the field location based services (LBS) is getting more and more attention. For indoor environments, LBS has a wide application for both civil and industrial areas. To make indoor LBS available, positioning technology has become a popular research topic in recent years. This dissertation investigates several indoor positioning topics based on visible light communication (VLC).First, it demonstrates the motivation to realize indoor LBS. Second, several positioning approaches are introduced to provide the location information. Positioning systems such as wireless local access network (WLAN), Zigbee, Bluetooth and radio frequency identification (RFID) are addressed. Third, fundamentals of VLC technology is detailed by explaining the light emitting diode (LED) as the transmitter, the photodiode (PD) as the receiver and the channel direct current (DC) gain considering the line-of-sight (LOS) condition. Visible light positioning systems are realized with lateration techniques based on received signal strength (RSS) information detected by PD. Two channel access methods are detailed and their advantages and disadvantages are analyzed. When height information of the receiver is unknown, three dimensional positioning is realized with an iterative algorithm based on the pre-estimation of the vertical coordinates. In order to further improve the positioning accuracy and alleviate the effect of large deviations, Kalman filter, particle filter as well as Gaussian mixture sigma point particle filter (GM-SPPF) are applied for both 2-D and 3-D scenarios. Considering the vertical accuracy cannot be improved largely from the filtering techniques, a nonlinear estimation algorithm is proposed based on a trust region algorithm.Multipath propagation is one of the most important factors that affects the performance of indoor positioning systems. In this dissertation, impulse response with multipath reflections are analyzed with the combined deterministic and modified Monte Carlo (CDMMC) algorithm. The received optical power from different LED bulbs and the positioning accuracy for the entire room is detailed. Orthogonal frequency division multiplexing (OFDM) is also proposed in the positioning system, considering OFDM performs well when multipath reflections exist. Positioning performance is largely improved with OFDM compared to On-off-keying (OOK) modulation. Finally, conclusions and future works are described in Chapter 9.