| Presentation | 2023-03-01 Evaluation of Demodulation Error Performance for Parallel Transmission Image Sensor-based VLC Using M-point Combinatory Modulation Takumi Sato, Koji Kamakura, Masayuki Kinoshita, Takaya Yamazato, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An evaluation of demodulation error performance for $M$-point combinatory (MC) parallel transmission (PT) image sensor (IS)-based visible light communication (VLC) is done in this paper. In the MCPT system, $M$ out of the $M_0$ transmitting regions on the transmitter liquid crystal display (LCD) are used, where $M leq M_0$. Since there are $binom{M_0}{M}$ ways in choosing $M$ out of the $M_0$ ones, we map them to $ell= left lfloor log_2 binom{M_0}{M} right rfloor$,bits. According to $ell$,bits, $M$ transmitting regions are chosen for a frame, and then the $M$ chosen ones are used to transmit $M$ discrete signals of the PT system. However, if an unused transmission region is selected for MC demodulation at the receiver side, the bits transmitted in combinations and the bits transmitted by $M$ discrete signals cannot be demodulated. Therefore, it is important to evaluate the tolerance to MC demodulation errors. In this paper, we evaluate the immunity of MC demodulation and PSK demodulation to change lower limit of dynamic range between transmitter and receiver $varepsilon_{mathrm{L}}$. Our experimental results show that $varepsilon_{mathrm{L}}=50$ is the optimal value for MCPT system when the distance between transmitter LCD and receiver camera is 2,m because this value is the most tolerant to PSK demodulation errors without any MC demodulation errors. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Visible light communications / Optical wireless communications / Image sensor communications / Spatial parallel transmission / Spatial OFDM / Parallel combinatory |
| Paper # | CAS2022-102,CS2022-79 |
| Date of Issue | 2023-02-22 (CAS, CS) |
| Conference Information | |
| Committee | CAS / CS |
|---|---|
| Conference Date | 2023/3/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
| Chair | Yoshinobu Maeda(Niigata Univ.) / Daisuke Umehara(Kyoto Inst. of Tech.) |
| Vice Chair | Yasutoshi Aibara(OmniVision) / Seiji Kozaki(Mitsubishi Electric) |
| Secretary | Yasutoshi Aibara(NIT, Toyama college) / Seiji Kozaki(Renesas Electronics) |
| Assistant | Takahide Sato(Univ. of Yamanashi) / Motoi Yamaguchi(TECHNOPRO) / Shinji Shimoda(Sony Semiconductor Solutions) / Shunsuke Koshita(Hachinohe Inst. of Tech.) / Hikaru Kawasaki(NICT) / Yuta Ida(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Circuits and Systems / Technical Committee on Communication Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of Demodulation Error Performance for Parallel Transmission Image Sensor-based VLC Using M-point Combinatory Modulation |
| Sub Title (in English) | |
| Keyword(1) | Visible light communications |
| Keyword(2) | Optical wireless communications |
| Keyword(3) | Image sensor communications |
| Keyword(4) | Spatial parallel transmission |
| Keyword(5) | Spatial OFDM |
| Keyword(6) | Parallel combinatory |
| 1st Author's Name | Takumi Sato |
| 1st Author's Affiliation | Chiba Institute of Technology(CIT) |
| 2nd Author's Name | Koji Kamakura |
| 2nd Author's Affiliation | Chiba Institute of Technology(CIT) |
| 3rd Author's Name | Masayuki Kinoshita |
| 3rd Author's Affiliation | Chiba Institute of Technology(CIT) |
| 4th Author's Name | Takaya Yamazato |
| 4th Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2023-03-01 |
| Paper # | CAS2022-102,CS2022-79 |
| Volume (vol) | vol.122 |
| Number (no) | CAS-396,CS-397 |
| Page | pp.pp.35-40(CAS), pp.35-40(CS), |
| #Pages | 6 |
| Date of Issue | 2023-02-22 (CAS, CS) |