Presentation | 2018-01-30 LED-to-Camera Communication Mechanism Based on Flash Blinks against Inter-Frame Gaps and Frame Drops Yuki Hokazono, Aoi Koizuka, Makoto Suzuki, Yoshiaki Narusue, Hiroyuki Morikawa, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | LED-to-camera communication for smartphones is promising to enable low-cost, small-size, and intuitive data access to IoT devices. For fast and reliable communication under the rolling shutter effect, it is necessary to deal with packet losses due to inter-frame gaps and frame drops. In this paper, we present IoTorch, a fast and reliable LED-to-camera communication which efficiently prevents these packet losses. IoTorch consists of two core mechanisms: 1) a packet retransmission strategy focusing on periodicity of inter-frame gaps, and 2) an ACK mechanism against frame drops using a smartphone's built-in flash focusing on its delay characteristic. In addition, IoTorch is capable of low-power implementation by data transmission trigger using flash. The experimental results using multiple smartphone models show that IoTorch achieves more than 14x throughput of previous works without data losses. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | LED-to-camera communication for smartphones / Rolling shutter effect / Visible light communication |
Paper # | ASN2017-95 |
Date of Issue | 2018-01-23 (ASN) |
Conference Information | |
Committee | ASN |
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Conference Date | 2018/1/30(2days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | Yufugo-kan (Oita) |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | Ambient intelligence, Sensor networks, etc. |
Chair | Hiraku Okada(Nagoya Univ.) |
Vice Chair | Shigeki Shiokawa(KAIT) / Jin Nakazawa(Keio Univ.) / Satoru Yamano(NEC) |
Secretary | Shigeki Shiokawa(NICT) / Jin Nakazawa(Sophia Univ.) / Satoru Yamano |
Assistant | Hiroto Aida(Doshisha Univ.) / Tomoyuki Ota(Hiroshima City Univ.) / Tatsuya Kikuzuki(Fujitu Lab.) / Ryo Nakano(HITACHI) / Yoshifumi Hotta(Mitsubishi Electric) |
Paper Information | |
Registration To | Technical Committee on Ambient intelligence and Sensor Networks |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | LED-to-Camera Communication Mechanism Based on Flash Blinks against Inter-Frame Gaps and Frame Drops |
Sub Title (in English) | |
Keyword(1) | LED-to-camera communication for smartphones |
Keyword(2) | Rolling shutter effect |
Keyword(3) | Visible light communication |
1st Author's Name | Yuki Hokazono |
1st Author's Affiliation | Tokyo University(Tokyo Univ.) |
2nd Author's Name | Aoi Koizuka |
2nd Author's Affiliation | Tokyo University(Tokyo Univ.) |
3rd Author's Name | Makoto Suzuki |
3rd Author's Affiliation | Tokyo University(Tokyo Univ.) |
4th Author's Name | Yoshiaki Narusue |
4th Author's Affiliation | Tokyo University(Tokyo Univ.) |
5th Author's Name | Hiroyuki Morikawa |
5th Author's Affiliation | Tokyo University(Tokyo Univ.) |
Date | 2018-01-30 |
Paper # | ASN2017-95 |
Volume (vol) | vol.117 |
Number (no) | ASN-426 |
Page | pp.pp.71-76(ASN), |
#Pages | 6 |
Date of Issue | 2018-01-23 (ASN) |