Title
Dynamic Task Pricing in Multi-Requester Mobile Crowd Sensing with Markov Correlated Equilibrium
Abstract
The recent proliferation of human-carried mobile devices has given rise to mobile crowd sensing (MCS) systems, where a myriad of data requesters outsource their sensing tasks to a crowd of workers via a cloud-based platform. In order to incentivize participation, requesters typically compensate workers with specific amount of payments. Clearly, setting an appropriate task price is critical for a requester to attract enough worker participation without unnecessary expenses. Therefore, we investigate the problem of task pricing in MCS systems with multi-requester price competition, and also dynamically arriving workers. Task pricing in such scenario is challenging, because of each requester’s incomplete information about the others, uncertainty of future information, etc. So as to address these challenges, we use Markov game to model requesters’ competitive task pricing, and Markov correlated equilibrium (MCE) as the solution concept. We propose that the platform uses the social cost-minimizing MCE to coordinate requesters’ prices, which is self-enforcing, and optimizes the system-wide objective of social cost. Technically, we propose a computationally efficient algorithm to compute an approximately optimal MCE. Furthermore, through extensive performance evaluation, we show numerically that our algorithm yields close-to-minimum social cost in very short running time.
Year
Venue
Keywords
2019
ieee international conference computer and communications
Task analysis,Pricing,Sensors,Games,Markov processes,Vehicle dynamics,Nickel
Field
DocType
ISSN
Correlated equilibrium,Markov process,Task analysis,Computer science,Markov chain,Mobile device,Solution concept,Complete information,Cloud computing,Distributed computing
Conference
0743-166X
ISBN
Citations 
PageRank 
978-1-7281-0515-4
3
0.37
References 
Authors
0
5
Name
Order
Citations
PageRank
Haiming Jin110412.12
Hongpeng Guo282.81
lu su3111866.61
Klara Nahrstedt47941636.63
Xinbing Wang52642214.43