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Title	Dlit: A Scalable Distributed Ledger For Iot Data
ID_Doc	20788
Authors	Niya S.R.; Beckmann R.; Stiller B.
Year	2020
Published	2020 2nd International Conference on Blockchain Computing and Applications, BCCA 2020
DOI	http://dx.doi.org/10.1109/BCCA50787.2020.9274456
Abstract	The integration of the Internet-of-Things (IoT) and Blockchain (BC) for strong trust and decentralization shows potentials in use cases, such as supply chain tracing, smart cities, and health care. As a great number of IoT devices interacting in such cases, it is crucial to provide scalable and secure mechanisms for IoT data persistence within BCs. In this regard, sharding mechanisms have been employed to enhance the scalability of BCs. However, disconnections and delays of a BC's distributed network can cause concerns for inter-shard and inter-miner synchronizations, eventually preventing the BC from reaching a high throughput. Thus, this work develops an IoT-oriented permissioned BC, which covers via a scalable Distributed Ledger (DL) a novel sharding mechanism for unstable distributed networks. Therefore, DLIT (Distributed Ledger for IoT Data) offers a novel two-layered transaction distribution, validation, and inter-shard synchronization, combined with authentication and verification mechanisms in support of a viable security level. © 2020 IEEE.
Author Keywords	Blockchain; Byzantine Fault Tolerance; Distributed Ledger; Internet-of-Things; Proof-of-Stake; Sharding

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