Presentation 2022-05-13
Proposing Federated Consensus and its Performance Evaluation Experiment with Many Nodes
Takaaki Yanagihara, Akihiro Fujihara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Public blockchains have an extremely slow transaction processing capacity, which is known as the blockchain scalability problem. We have investigated our cross-referencing method as a consensus algorithmfor multiple blockchains to improve the scalability and other aspects. On the other hand, similar methodology has been proposed by blockchain projects, such as Polkadot and Cosmos. In this paper, we propose federated consensus to summarize frameworks toimprove the scalability and other aspects. We also explain that the federated consensus can be classified into two types:relay-chain type that requires the blockchain in the upper layer andchain-less type that does not require the one. Furthermore, we conducted experiments to evaluate the performance of the latencyto finish chain-less-type federated consensus in the cross-referencing methodwith a peer-to-peer network of more than 100 nodes. As a result, we confirmed that the average latency increased by about 3.3 secondsper node as increasing the number of domains.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Blockchain / Consensus Algorithm / Scalability / Interoperability / Latency
Paper # NS2022-15
Date of Issue 2022-05-05 (NS)

Conference Information
Committee NS
Conference Date 2022/5/12(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Rakuyu Kaikan, Kyoto Univ. + Online
Topics (in Japanese) (See Japanese page)
Topics (in English) High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc.
Chair Akihiro Nakao(Univ. of Tokyo)
Vice Chair Tetsuya Oishi(NTT)
Secretary Tetsuya Oishi(NTT)
Assistant Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Proposing Federated Consensus and its Performance Evaluation Experiment with Many Nodes
Sub Title (in English)
Keyword(1) Blockchain
Keyword(2) Consensus Algorithm
Keyword(3) Scalability
Keyword(4) Interoperability
Keyword(5) Latency
1st Author's Name Takaaki Yanagihara
1st Author's Affiliation Chiba Institute of Technology(CIT)
2nd Author's Name Akihiro Fujihara
2nd Author's Affiliation Chiba Institute of Technology(CIT)
Date 2022-05-13
Paper # NS2022-15
Volume (vol) vol.122
Number (no) NS-16
Page pp.pp.34-39(NS),
#Pages 6
Date of Issue 2022-05-05 (NS)