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| Content Provider | IET Digital Library |
|---|---|
| Author | Lin, Bangjiang Tang, Xuan Ghassemlooy, Zabih Zhang, Shihao Li, Yiwei Wu, Yi Li, Hui |
| Abstract | The authors present efficient frequency-domain channel estimation methods based on the intra-symbol frequency-domain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency division multiplexing (OFDM) visible light communications (VLC) system. OFDM-VLC with quadrature phase shift keying, 16- and 64-quadrature amplitude modulation mapping is experimentally demonstrated. Compared with the conventional least square channel estimation method, ISFA, MMSE and WIFA offer improved performance with MMSE offering the best performance in terms of the error vector magnitude but at the cost of high complexity. The authors show that the WIFA can improve the estimation accuracy of time-varying VLC optical channel. |
| Starting Page | 25 |
| Ending Page | 29 |
| Page Count | 5 |
| ISSN | 17518628 |
| Volume Number | 11 |
| e-ISSN | 17518636 |
| Issue Number | Issue 1, Jan (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/11/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0787 |
| Journal | IET Communications |
| Publisher Date | 2017-01-05 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 16-quadrature Amplitude Modulation Mapping 64-quadrature Amplitude Modulation Mapping Channel Estimation Communication Channel Equalisation And Identification Equaliser Error Vector Magnitude Free Space Optical Communication Free Space Optical Link Frequency Domain Analysis Frequency-domain Channel Equalisation Method Frequency-domain Channel Estimation Method Interpolation And Function Approximation Intrasymbol Frequency-domain Averaging Scheme ISFA Scheme Least Mean Squares Method Minimum Mean Squared Error Scheme MMSE Scheme Modulation And Coding Method Numerical Analysis OFDM Modulation OFDM-VLC System Optical Modulation Orthogonal Frequency Division Multiplexing Visible Light Communication System Quadrature Amplitude Modulation Quadrature Phase Shift Keying Time-varying Channel Time-varying VLC Optical Channel Weighted Interframe Averaging Scheme WIFA Scheme |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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