Light beam allocation algorithm for eliminating interference in visible light communications

In this paper, we present a model of visible light communication (VLC) systems which exploit light beams for downlink transmission. A calculation method is proposed for light beam configuration (LBC) which guarantees no blind areas in the whole VLC coverage while minimizing the number of light beams...

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Published in:Proceedings (International Conference on Advanced Technologies for Communications) pp. 419 - 424
Main Authors: Duc-Quan Nguyen, Ngoc-Tan Nguyen, Nam-Hoang Nguyen, Spirinmanwat, Keattisak
Format: Conference Proceeding
Language:English
Published: IEEE 01.10.2016
Subjects:
Interference
Light Beam Configuration
Light emitting diodes
Optical receivers
Optical transmitters
Resource Allocation Algorithms
Resource management
Signal to noise ratio
Visible light communication
Visible Light Communications (VLC)
ISSN:2162-1039
Online Access:Get full text
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Abstract In this paper, we present a model of visible light communication (VLC) systems which exploit light beams for downlink transmission. A calculation method is proposed for light beam configuration (LBC) which guarantees no blind areas in the whole VLC coverage while minimizing the number of light beams. As a major contribution in this paper, a light beam allocation algorithm (LBAA) is proposed which aims to eliminate interferences between inter VLC Access Points (inter-APs) by using information of incoming data queue length and co-channel interference (CCI) conditions to decide which VLC beams are used for transmitting data to appropriate user equipment (UEs). By deploying the proposed algorithm, CCI can be eliminated because noise-effected regions and noise-free regions can be separated. Performance of the novel LBAA is analyzed, evaluated and then compared with that of another light beam allocation method using the Round-Robin algorithm. Performance results show that there are significantly improvements in term of SINR, user throughput and packet delay parameters when deploying the proposed LBAA.
AbstractList In this paper, we present a model of visible light communication (VLC) systems which exploit light beams for downlink transmission. A calculation method is proposed for light beam configuration (LBC) which guarantees no blind areas in the whole VLC coverage while minimizing the number of light beams. As a major contribution in this paper, a light beam allocation algorithm (LBAA) is proposed which aims to eliminate interferences between inter VLC Access Points (inter-APs) by using information of incoming data queue length and co-channel interference (CCI) conditions to decide which VLC beams are used for transmitting data to appropriate user equipment (UEs). By deploying the proposed algorithm, CCI can be eliminated because noise-effected regions and noise-free regions can be separated. Performance of the novel LBAA is analyzed, evaluated and then compared with that of another light beam allocation method using the Round-Robin algorithm. Performance results show that there are significantly improvements in term of SINR, user throughput and packet delay parameters when deploying the proposed LBAA.
Author Duc-Quan Nguyen
Spirinmanwat, Keattisak
Nam-Hoang Nguyen
Ngoc-Tan Nguyen
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  surname: Ngoc-Tan Nguyen
  fullname: Ngoc-Tan Nguyen
  email: nguyen.tan170@gmail.com
  organization: Fac. of Electron. & Telecommun., Univ. of Eng. & Technol., Hanoi, Vietnam
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  surname: Nam-Hoang Nguyen
  fullname: Nam-Hoang Nguyen
  email: hoangnn@vnu.edu.vn
  organization: Fac. of Electron. & Telecommun., Univ. of Eng. & Technol., Hanoi, Vietnam
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  givenname: Keattisak
  surname: Spirinmanwat
  fullname: Spirinmanwat, Keattisak
  email: keattisak.sripimanwat@gmail.com
  organization: LED - SmartCoN. Org, Thailand
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Snippet In this paper, we present a model of visible light communication (VLC) systems which exploit light beams for downlink transmission. A calculation method is...
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StartPage 419
SubjectTerms Interference
Light Beam Configuration
Light emitting diodes
Optical receivers
Optical transmitters
Resource Allocation Algorithms
Resource management
Signal to noise ratio
Visible light communication
Visible Light Communications (VLC)
Title Light beam allocation algorithm for eliminating interference in visible light communications
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