Presentation 2022-03-07
Block Interval Adjustment Based on Block Propagation Time in A Blockchain
Masumi Arakawa, Kazuyuki Shudo,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Throughput (TPS) of transaction confirmation is one of the most important performance metrics of public blockchains. It is possible to improve it by shortening block generation interval. But it could sacrifice security because shorter interval increases the fork rate. Our proposed method improves the throughput by adjusting block generation interval as short as possible. Part of nodes observes the block propagation times over the blockchain network and the interval is determined so as not to increase the fork rate. Our simulation showed the proposed method works as it is supposed to.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) blockchain / throughput / block generation interval / block propagation time
Paper # SITE2021-55,IA2021-68
Date of Issue 2022-02-28 (SITE, IA)

Conference Information
Committee IA / SITE / IPSJ-IOT
Conference Date 2022/3/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kyoto University, Yoshida Campus
Topics (in Japanese) (See Japanese page)
Topics (in English) Internet and Information Ethics Education, etc.
Chair Tomoki Yoshihisa(Osaka Univ.) / Masaru Ogawa(Kobe Gakuin Univ.)
Vice Chair Toru Kondo(Hiroshima Univ.) / Yuichiro Hei(KDDI Research) / Hiroshi Yamamoto(Ritsumeikan Univ.) / Takushi Otani(Kibi International Univ.) / Takeo Tatsumi(Open Univ. of Japan)
Secretary Toru Kondo(Osaka Univ.) / Yuichiro Hei(Kogakuin Univ.) / Hiroshi Yamamoto(NEC) / Takushi Otani(Yamaguchi Pref Univ.) / Takeo Tatsumi(Hokuriku Univ.)
Assistant Daisuke Kotani(Kyoto Univ.) / Ryo Nakamurai(Fukuoka Univ.) / Daiki Nobayashi(Kyushu Inst. of Tech.) / Hideyuki Fujii(NRI-Secure) / Yusuke Tachibana(Fukuoka Inst. of Tech.)

Paper Information
Registration To Technical Committee on Internet Architecture / Technical Committee on Social Implications of Technology and Information Ethics / Special Interest Group on Internet and Operation Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Block Interval Adjustment Based on Block Propagation Time in A Blockchain
Sub Title (in English)
Keyword(1) blockchain
Keyword(2) throughput
Keyword(3) block generation interval
Keyword(4) block propagation time
1st Author's Name Masumi Arakawa
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
2nd Author's Name Kazuyuki Shudo
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech)
Date 2022-03-07
Paper # SITE2021-55,IA2021-68
Volume (vol) vol.121
Number (no) SITE-408,IA-409
Page pp.pp.58-62(SITE), pp.58-62(IA),
#Pages 5
Date of Issue 2022-02-28 (SITE, IA)