Block Interval Adjustment Toward Fair Proof-of-Work Blockchains
Block Interval Adjustment Toward Fair Proof-of-Work Blockchains
复制标题
区块间隔调整以实现公平的工作量证明区块链
DOI：
10.1109/icdew49219.2020.00-15
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Kazuyuki Shudo
中科院分区：
文献类型：
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作者：
Reiki Kanda;Kazuyuki Shudo
我们提出了一种比文献中发现的更好的公平衡量标准。然后，我们提出了一种调整块间隔的方法，以保持公平性和高交易吞吐量。现有的公平度量非常粗糙，只要一个节点可以在另一个节点挖掘一个区块之前开始挖矿，它的判断就被认为是公平的。然而，节点之间的挖掘剩余时间是不同的；这可能导致不公平。因此，我们将提议的公平性定义为矿工的挖矿成功率仅取决于计算能力。这是一种比现有标准更好的公平衡量标准。我们提出了一种调整块间隔以保持一定程度的公平性的方法。大多数工作量证明（PoW）区块链固定了块间隔，不考虑公平性。相比之下，我们提出的技术根据分叉发生率调整块间隔。即使网络条件发生变化，我们的方法也能保持公平性。模拟证实，即使在互联网性能变化时，我们的技术也能保持公平性。
We propose a finer measure of fairness than that found in the literature. We then propose a method of adjusting the block interval that maintains fairness and high transaction throughput. The existing fairness measure is so rough that its judgement is considered fair as long as a node can start mining by the time another node mines a block. However, the time left for mining differs between nodes; this can result in unfairness. Therefore, we define the proposed fairness as the mining success rate of miners depends only on computational power. This is a finer measure of fairness than existing one. We propose a method for adjusting the block interval to maintain a certain level of fairness. Most Proof of Work (PoW) blockchains fix the block intervals and do not consider fairness. In contrast, our proposed technique adjusts the block interval based on the fork incidence rate. Our method maintains fairness even if the network conditions change. Simulations confirm that our technique maintains fairness even when the Internet performance varies.