An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces
The optimization problem of the number of mirrors under energy efficiency (EE) maximization for vehicular visible light communication (VVLC) via mirror array-based intelligent reflecting surface (IRS) is investigated. Under considering that the formulated optimization problem is subject to the real...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/3/129 |
| _version_ | 1797443498812637184 |
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| author | Ling Zhan Hong Zhao Wenhui Zhang Jiming Lin |
| author_facet | Ling Zhan Hong Zhao Wenhui Zhang Jiming Lin |
| author_sort | Ling Zhan |
| collection | DOAJ |
| description | The optimization problem of the number of mirrors under energy efficiency (EE) maximization for vehicular visible light communication (VVLC) via mirror array-based intelligent reflecting surface (IRS) is investigated. Under considering that the formulated optimization problem is subject to the real and non-negative of the transmitted signal, the maximum power consumption satisfied luminous ability and eye safety, the minimum achievable rate, and the required bit error ratio (BER), EE is proved to be a unimodal function of the number of mirrors. Then, the binary search-conditional iteration (BSCI) algorithm is proposed for quickly finding the optimal number of mirrors with maximum EE. Numerical results demonstrate that fewer mirrors can obtain the maximum EE, and the computational complexity of the BSCI algorithm is reduced by <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mn>10</mn></mrow><mn>5</mn></msup></mrow></semantics></math></inline-formula> orders of magnitude, compared with the Bubble Sort method. |
| first_indexed | 2024-03-09T12:56:58Z |
| format | Article |
| id | doaj.art-729c2b24d6c348a69742c0128aee042d |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T12:56:58Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-729c2b24d6c348a69742c0128aee042d2023-11-30T21:58:36ZengMDPI AGPhotonics2304-67322022-02-019312910.3390/photonics9030129An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting SurfacesLing Zhan0Hong Zhao1Wenhui Zhang2Jiming Lin3Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Computer Science and Information Security, Guilin University of Electronic Technology, Guilin 541004, ChinaCollege of Electronic and Information Engineering, Beibu Gulf University, Qinzhou 535011, ChinaThe optimization problem of the number of mirrors under energy efficiency (EE) maximization for vehicular visible light communication (VVLC) via mirror array-based intelligent reflecting surface (IRS) is investigated. Under considering that the formulated optimization problem is subject to the real and non-negative of the transmitted signal, the maximum power consumption satisfied luminous ability and eye safety, the minimum achievable rate, and the required bit error ratio (BER), EE is proved to be a unimodal function of the number of mirrors. Then, the binary search-conditional iteration (BSCI) algorithm is proposed for quickly finding the optimal number of mirrors with maximum EE. Numerical results demonstrate that fewer mirrors can obtain the maximum EE, and the computational complexity of the BSCI algorithm is reduced by <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mn>10</mn></mrow><mn>5</mn></msup></mrow></semantics></math></inline-formula> orders of magnitude, compared with the Bubble Sort method.https://www.mdpi.com/2304-6732/9/3/129vehicular visible light communication (VVLC)intelligent reflecting surface (IRS)the number of mirrorsenergy efficiency (EE) |
| spellingShingle | Ling Zhan Hong Zhao Wenhui Zhang Jiming Lin An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces Photonics vehicular visible light communication (VVLC) intelligent reflecting surface (IRS) the number of mirrors energy efficiency (EE) |
| title | An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces |
| title_full | An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces |
| title_fullStr | An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces |
| title_full_unstemmed | An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces |
| title_short | An Optimal Scheme for the Number of Mirrors in Vehicular Visible Light Communication via Mirror Array-Based Intelligent Reflecting Surfaces |
| title_sort | optimal scheme for the number of mirrors in vehicular visible light communication via mirror array based intelligent reflecting surfaces |
| topic | vehicular visible light communication (VVLC) intelligent reflecting surface (IRS) the number of mirrors energy efficiency (EE) |
| url | https://www.mdpi.com/2304-6732/9/3/129 |
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