A Truthful Online Mechanism for Location-Aware Tasks in Mobile Crowd Sensing

被引:54
|
作者
Zhou, Ruiting [1 ,2 ]
Li, Zongpeng [2 ]
Wu, Chuan [3 ]
机构
[1] Univ Calgary, Calgary, AB T2N 1N4, Canada
[2] Wuhan Univ, Sch Comp Sci, SKLSE, Wuhan 430072, Hubei, Peoples R China
[3] Univ Hong Kong, Dept Comp Sci, Kowloon, Hong Kong, Peoples R China
关键词
Mobile crowd sensing; mechanism design; approximation algorithms; AUCTION;
D O I
10.1109/TMC.2017.2777481
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Effective incentive mechanisms are invaluable in mobile crowd sensing, for stimulating participation of smartphone users. Online auction mechanisms represent a natural solution for such sensing task allocation. Departing from existing studies that focus on an isolated system round, we optimize social cost across the system lifespan, while considering location constraints and capacity constraints when assigning sensing tasks to users. The winner determination problem (WDP) at each round is NP-hard even without inter-round coupling imposed by user capacity constraints. We first propose a truthful one-round auction, comprising of an approximation algorithm for solving the one-round WDP and a payment scheme for computing remuneration to winners. We then propose an online algorithm framework that employs the one-round auction as a building block towards a flexible mechanism that makes on-spot decisions upon dynamically arriving bids. Through both theoretical analysis and trace-driven simulations, we demonstrate that our online auction is truthful, individually rational, computationally efficient, and achieves a good competitive ratio.
引用
收藏
页码:1737 / 1749
页数:13
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