Presentation 2023-03-14
Enhancing physical-layer security by 4PPM space division multiplexing for smartphone screen to camera uplink communication
Alisa Kawade, Wataru Chujo, Kentaro Kobayashi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In indoor 3.5-m uplink screen camera communication using a smartphone screen and a video camera, it has been shown that low-luminance spatial division multiplexing (SDM) screen with on-off keying (OOK) cells improves data rate and enhances wide-angle physical layer security. However, OOK requires threshold learning and is difficult to apply when environmental conditions such as ambient light change. In this study, SDM screen is configured with spatial four-pulse position modulation (4PPM) cells, and the receiving camera makes symbol decision by correlation processing that does not require threshold learning. Numerical models and experiments demonstrate that the proposed method is effective to increase the data rate and enhance the physical layer security at wide angles. It is shown that strength of the physical layer security at wide angles can be designed using the cell size and pixel value of a 4PPM-SDM screen as parameters.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Visible Light Communication / Screen Camera Communication / Space Division Multiplexing / Physical Layer Security / 4PPM
Paper # IT2022-86,ISEC2022-65,WBS2022-83,RCC2022-83
Date of Issue 2023-03-07 (IT, ISEC, WBS, RCC)

Conference Information
Committee RCC / ISEC / IT / WBS
Conference Date 2023/3/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Shunichi Azuma(Nagoya Univ.) / Noboru Kunihiro(Tsukuba Univ.) / Tetsuya Kojima(Tokyo Kosen) / Takashi Shono(Wind River)
Vice Chair Shunichi Azuma(Hokkaido Univ.) / Koji Ishii(Kagawa Univ.) / Junji Shikata(Yokohama National Univ.) / Goichiro Hanaoka(AIST) / Yasuyuki Nogami(Okayama Univ.) / Hiroyasu Ishikawa(Nihon Univ.) / Hideki Ochiai(Yokohama National Univ.)
Secretary Shunichi Azuma(CRIEPI) / Koji Ishii(Ritsumeikan Univ.) / Junji Shikata(AIST) / Goichiro Hanaoka(Ibaraki Univ.) / Yasuyuki Nogami(Saitamai Univ.) / Hiroyasu Ishikawa(Nagaoka Univ. of Tech.) / Hideki Ochiai(Okayama Prefectural Univ.)
Assistant SHAN LIN(NICT) / Ryosuke Adachi(Yamaguchi Univ.) / Yoshikazu Hanatani(Toshiba) / Takayuki Nozaki(Yamaguchi Univ.) / Sun Ran(Ibaraki Univ.) / Chen Na(NAIST)

Paper Information
Registration To Technical Committee on Reliable Communication and Control / Technical Committee on Information Security / Technical Committee on Information Theory / Technical Committee on Wideband System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Enhancing physical-layer security by 4PPM space division multiplexing for smartphone screen to camera uplink communication
Sub Title (in English)
Keyword(1) Visible Light Communication
Keyword(2) Screen Camera Communication
Keyword(3) Space Division Multiplexing
Keyword(4) Physical Layer Security
Keyword(5) 4PPM
1st Author's Name Alisa Kawade
1st Author's Affiliation Meijo University(Meijo Univ.)
2nd Author's Name Wataru Chujo
2nd Author's Affiliation Meijo University(Meijo Univ.)
3rd Author's Name Kentaro Kobayashi
3rd Author's Affiliation Meijo University(Meijo Univ.)
Date 2023-03-14
Paper # IT2022-86,ISEC2022-65,WBS2022-83,RCC2022-83
Volume (vol) vol.122
Number (no) IT-427,ISEC-428,WBS-429,RCC-430
Page pp.pp.114-119(IT), pp.114-119(ISEC), pp.114-119(WBS), pp.114-119(RCC),
#Pages 6
Date of Issue 2023-03-07 (IT, ISEC, WBS, RCC)