Effects of a Simple Relay Network on the Bitcoin Network

Proceedings of the 15th Asian Internet Engineering Conference Pub Date : 2019-08-07 DOI:10.1145/3340422.3343640

Kai Otsuki, Yusuke Aoki, Ryohei Banno, Kazuyuki Shudo

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引用次数: 23

Abstract

Bitcoin has a low transaction throughput. In order to allow for an increase of this throughput without increasing orphan blocks, decreasing the block propagation time is important. One of the techniques to improve its block propagation time is to utilize relay networks. However, the effects of utilizing relay networks is not apparent. Existing studies and measurements on relay networks have not focused on the effect of relay networks on the individual miners. Moreover, the relation between the degree of the effect and relay network utilization rate is unknown. Herein, we performed simulations while finely changing the proportion of nodes utilizing a relay network. Moreover we quantitatively evaluated the effect of relay networks on the entire Bitcoin network and individual miners. Results show that the propagation time decrease to approximately 77% of the original value if the utilization rate is set to 3%. This rate is close to the actual utilization rate of relay network "Falcon". We also found that the probability of blocks created by utilizing nodes to become orphan blocks is surprisingly smaller than that of the non-utilizing nodes. Even in the worst case, the value of utilizing nodes is 15% of the value of non-utilizing nodes.

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简单中继网络对比特币网络的影响

比特币的交易吞吐量很低。为了在不增加孤立块的情况下增加吞吐量，减少块传播时间非常重要。利用中继网络是提高其块传播时间的技术之一。然而，利用中继网络的效果并不明显。现有的关于中继网络的研究和测量并没有关注中继网络对矿工个体的影响。此外，影响程度与中继网络利用率之间的关系是未知的。在此，我们在利用中继网络精细改变节点比例的同时进行了模拟。此外，我们定量评估了中继网络对整个比特币网络和个体矿工的影响。结果表明，如果将利用率设置为3%，传播时间将减少到原始值的大约77%。这一利用率接近于中继网络“猎鹰”的实际利用率。我们还发现，通过利用节点创建的块成为孤立块的概率比不利用节点的概率要小得多。即使在最坏的情况下，利用节点的价值也是未利用节点价值的15%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 15th Asian Internet Engineering Conference

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