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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Haoxu Wang, Jin Zhang, Xiaofeng Wu, Rangzhong |
| Abstract | Visible light communications have recently gained increasing attention as it is appealing for a wide range of applications such as indoor positioning. However, the light-emitting diode-based indoor positioning systems suffer from multipath distortion inside a room, leading to high positioning error. In order to mitigate the effect of multipath distortion of the optical channel, an indoor visible light positioning algorithm combined with ellipse-based asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) is proposed in this study, wherein the real-valued output of orthogonal frequency division multiplexing is modulated onto an ellipse, and only the imaginary value from the complex point on the ellipse is transmitted. Moreover, a received-signal-strength technique is used to determine the location of the receiver, and the Trust-region technique is employed to realise the 3D positioning. Simulation results demonstrate that this proposed algorithm can achieve high positioning accuracy, and the impact of different system parameters on the positioning accuracy is further investigated compared with the systems based on ACO-OFDM. |
| Starting Page | 2181 |
| Ending Page | 2187 |
| Page Count | 7 |
| ISSN | 17518628 |
| Volume Number | 12 |
| e-ISSN | 17518636 |
| Issue Number | Issue 17, Oct (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/12/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5239 |
| Journal | IET Communications |
| Publisher Date | 2018-08-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 3D Positioning Ellipse-based ACO-OFDM Ellipse-based Asymmetrically Clipped Optical Orthogonal Frequency Division Multiplexing Free Space Optical Communication Free Space Optical Link High Positioning Accuracy High Positioning Error Indoor Communication Indoor Navigation Indoor Visible Light Positioning Algorithm Light Emitting Diode Light-emitting Diode-based Indoor Positioning System Modulation And Coding Method Multipath Distortion Effect Mitigation OFDM Modulation Optical Channel Optical Distortion Optical Modulation Received-signal-strength Technique RSSI Trust-region Technique Visible Light Communication |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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