Name
Abstract | ||
|---|---|---|
Visible light communication (VLC) is an emerging technology that can transform lighting facilities into access points for wireless communication. Its development is bottlenecked by the cut-off frequencies (e.g., -6-dB electrical cut-off frequency f(c) and -3-dB electrical cut-off frequency f(-3) dB) of hardware, such as light-emitting diodes (LEDs), color converters, and photodetectors (PDs). In the past decade, especially in 2018, many materials and devices have been tested for properties related to VLC, such as f(c), response time, and transmission data rates, which are listed and analyzed here to get an updated overall picture. The f(-3) dB for the latest blue LED and color converter can reach up to 1485 and 470 MHz, respectively, which are great improvements from <5 MHz for conventional white LEDs. Among the new PDs, the largest characterized f(c) is 4.2 MHz. Moreover, the smallest response time of these PDs is 0.95 ns, which is promising to have f(c) of hundreds of megahertz. The limitation in the field of view when the active area is reduced to enlarge f(c) of the PD can be partially overcome with novel fluorescent antenna, whose f(c) is more than 40 MHz. These increments in the f(c) or f(-3) dB of hardware not only enlarge the channel capacity of the VLC but also facilitate the channel impulse response measurement, and the system becomes more susceptible to changes in the environment. These advances will shed light on the future development of the VLC with faster speed, more portable devices, and more applications for the Internet of Things. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/ACCESS.2019.2927054 | IEEE ACCESS |
Keywords | DocType | Volume |
Optical wireless communication,physical layer,transceiver,micro-LED,aggregation-induced emission,perovskite,quantum dot,channel modeling | Journal | 7 |
ISSN | Citations | PageRank |
2169-3536 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yilin Zhang | 1 | 0 | 0.34 |
| Lu Wang | 2 | 4 | 2.42 |
| Kai Wang | 3 | 22 | 10.17 |
| Kam Sing Wong | 4 | 0 | 0.34 |
| kaishun wu | 5 | 1059 | 94.59 |