Blockchains are appealing technologies with various applications ranging from banking to networking. IOTA blockchain is one of the most prominent blockchain specifically designed for IoT environments. In this paper we investigate the convergence of IOTA consensus algorithms: Fast Probabilistic Consensus and Cellular Consensus, when run on top of various topologies. Furthermore, we investigate their resilience to various types of adversaries. Our extensive simulations show that both Cellular Consensus and Fast Probabilistic Consensus have poor convergence rates even under low power adversaries and have poor scaling performances except for the case of Watts Strogatz topologies. Our study points out that the design of IOTs dedicated blockchains is still an open research problem and gives hints design.
翻译：屏障链是具有从银行到网络等各种应用的具有吸引力的技术。 IOTA 屏障链是专为IOT环境设计的最突出的屏障链之一。 在本文中,我们研究了IOTA共识算法的趋同性:快速概率共识和细胞共识,在各种地形之外运行。此外,我们还调查其对各类对手的适应力。我们的广泛模拟表明,细胞共识和快速概率共识的趋同率都很低,即使是在低功率对手之下也是如此,而且除Watts Strogaz 地形外,缩放性表现也很差。我们的研究指出,IOTs专用链的设计仍然是一个开放的研究问题,提供了提示设计。
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