Clive: I believe the voting model was brought into play by NASA after their previous method of having TWO systems check each other failed. I think it was a Venus probe or something like that. One of the CPUs failed causing it to believe that the OTHER CPU had failed and it shut it do...
Although it can provide exact result, the solution incurs expensive overhead of computation and communication on the end-user. More importantly, the encryption schemes used in [15,18] are symmetric, and both the data owners and users have to share the secret key, which make it impractical in...
The node that finds the solution first generates the block and receives the incentive. However, PoW is not suitable for VANET-critical applications because it needs around 10 min to solve the hash puzzle [26]. Proof of stake (PoS) is another consensus algorithm that is proposed to reduce ...