| Presentation | 2020-03-05 Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements Ryunosuke Nagayama, Kazuyuki Shudo, Ryohei Banno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Improving transaction throughput is an important challenge for Bitcoin. However, shortening the block generation interval or increasing the block size makes sharing blocks within the network slower and increases the number of orphan blocks. Therefore, to mitigate this, it is necessary to reduce the block propagation delay. Because of the contribution of compact block relay and evolution of the Internet, the block propagation delay has been shortened in recent years. However, there is no quantitative analysis of these contributions. In this study, we measure the block propagation delay on the Bitcoin network using a simulator, and investigate the effect of compact block relay and Internet improvements from 2015 to 2019. The experimental results reveal that the block propagation delay is reduced by 64.5% for the 50th percentile and 63.7% for the 90th percentile due to Internet improvements, and by 90.1% for the 50th percentile and by 87.6% for the 90th percentile due to compact block relay. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bitcoin / blockchain / propagation delay / simulator |
| Paper # | NS2019-208 |
| Date of Issue | 2020-02-27 (NS) |
| Conference Information | |
| Committee | NS / IN |
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| Conference Date | 2020/3/5(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Royal Hotel Okinawa Zanpa-Misaki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT-AT) |
| Vice Chair | Akihiro Nakao(Univ. of Tokyo) / Kenji Ishida(Hiroshima City Univ.) |
| Secretary | Akihiro Nakao(Osaka Pref Univ.) / Kenji Ishida(NTT) |
| Assistant | Shinya Kawano(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Information Networks |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements |
| Sub Title (in English) | |
| Keyword(1) | Bitcoin |
| Keyword(2) | blockchain |
| Keyword(3) | propagation delay |
| Keyword(4) | simulator |
| 1st Author's Name | Ryunosuke Nagayama |
| 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) |
| 3rd Author's Name | Ryohei Banno |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2020-03-05 |
| Paper # | NS2019-208 |
| Volume (vol) | vol.119 |
| Number (no) | NS-460 |
| Page | pp.pp.179-183(NS), |
| #Pages | 5 |
| Date of Issue | 2020-02-27 (NS) |