A blockchain based mobile crowdsensing market

Mobile crowdsensing(MCS) is an emerging pattern which means task initiators attract mobile users sensing with their own devices by some platforms. MCS could exploit idle resources in low cost, while it has lots of flaws, which impede its developments. First, isolations between different MCS systems leads to wastage of social resources. What's more, current MCS always operate in a centralized way, which causes it vulnerable and unbelievable. Blockchain is a promising technology which could supply a credible and transparent environment. This paper construct a blockchain based MCS market and design smart contract for its operation. In our design, platform breaks isolation by blockchain, task initiators and mobile users manage their tasks by smart contract and bargain price with distributed algorithm. By this way, resource could be exploited better, and the market could be more fair. What's more, the paper analyzes Walrasian Equilibrium (WE) in the market, and details how to deploy MCS in blockchain. Evalution results shows that Equilibrium could be found.