We present Saguaro, a permissioned blockchain system designed specifically for edge computing networks. Saguaro leverages the hierarchical structure of edge computing networks to reduce the overhead of wide-area communication by presenting several techniques. First, Saguaro proposes coordinator-based and optimistic protocols to process cross-domain transactions with low latency where the lowest common ancestor of the involved domains coordinates the protocol or detects inconsistency. Second, data are collected over hierarchy enabling higher-level domains to aggregate their sub-domain data. Finally, transactions initiated by mobile edge devices are processed without relying on high-level fog and cloud servers. Our experimental results across a wide range of workloads demonstrate the scalability of Saguaro in supporting a range of cross-domain and mobile transactions.
翻译：我们介绍萨瓜罗,这是专门为边缘计算网络设计的允许的链条系统。萨瓜罗通过介绍几种技术,利用边缘计算网络的等级结构来减少广域通信的间接费用。首先,萨瓜罗提出以协调员为基础和乐观的规程,以低潜线处理跨部交易,由相关区域中最低的共同祖先协调协议或发现不一致之处。第二,在等级层次上收集数据,使较高层次的域能够汇总其次域数据。最后,移动边缘设备发起的交易在不依赖高水平雾和云服务器的情况下得到处理。我们的广泛工作量的实验结果表明,萨瓜罗在支持一系列跨部和移动交易方面具有可扩展性。
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