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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| Veröffentlicht in: | Proceedings (International Conference on Advanced Technologies for Communications) S. 419 - 424 |
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01.10.2016
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| ISSN: | 2162-1039 |
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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. |
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| 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 |
| Author_xml | – sequence: 1 surname: Duc-Quan Nguyen fullname: Duc-Quan Nguyen email: quannd57@gmail.com organization: Humax Vietnam R&D Center, Vietnam – sequence: 2 surname: Ngoc-Tan Nguyen fullname: Ngoc-Tan Nguyen email: nguyen.tan170@gmail.com organization: Fac. of Electron. & Telecommun., Univ. of Eng. & Technol., Hanoi, Vietnam – sequence: 3 surname: Nam-Hoang Nguyen fullname: Nam-Hoang Nguyen email: hoangnn@vnu.edu.vn organization: Fac. of Electron. & Telecommun., Univ. of Eng. & Technol., Hanoi, Vietnam – sequence: 4 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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| 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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