Sustainable Smart Industry: A Secure and Energy Efficient Consensus Mechanism for Artificial Intelligence Enabled Industrial Internet of Things

Table 1

Performance of various consensus algorithm.

Consensus mechanism	Proof-of-work (PoW)	Proof-of-stack (PoS)	Improved delegate PoS (DPoS)
Mechanism for block generation	Computing power	Stake	Stake votes
Security issues	Constant power	Inactive nodes	Malicious nodes
Energy consumption	Very high	High	Low
Average block generation time	10 min	65 sec	5 sec
Reliability	High	Low	Low
Robustness	High	High	High