Since the advent of distributed ledger technologies, they have provided diverse
opportunities in a wide range of application domains. This article brings a comprehensive …

As the Internet of Things (IoT) concept materialized worldwide in complex ecosystems, the
related data security and privacy issues became apparent. While the system elements and …

We present HotStuff, a leader-based Byzantine fault-tolerant replication protocol for the
partially synchronous model. Once network communication becomes synchronous, HotStuff …

The terrestrial networks face the challenges of severe cost inefficiency and low feasibility to
provide seamless services anytime and anywhere, especially in the extreme or hotspot …

This paper presents research challenges on security and privacy issues in the field of green
IoT-based agriculture. We start by describing a four-tier green IoT-based agriculture …

Algorand is a new cryptocurrency that confirms transactions with latency on the order of a
minute while scaling to many users. Algorand ensures that users never have divergent …

Cryptocurrencies, such as Bitcoin and 250 similar alt-coins, embody at their core a
blockchain protocol---a mechanism for a distributed network of computational nodes to …

In this paper, we propose a novel deep learning and blockchain-based energy framework
for smart grids, entitled DeepCoin. The DeepCoin framework uses two schemes, a …

SBFT is a state of the art Byzantine fault tolerant state machine replication system that
addresses the challenges of scalability, decentralization and global geo-replication. SBFT is …

Bitcoin cryptocurrency demonstrated the utility of global consensus across thousands of
nodes, changing the world of digital transactions forever. In the early days of Bitcoin, the …