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Minimizing Sensor Allocation Cost for Crowdsensing On-street Parking Availability

In recent years, innovative roadside parking vacancy crowdsensing solutions have emerged as a cost-effective alternative to traditional methods, which can significantly reduce sensor installation and maintenance expenses. This crowdsensing scheme relies on vehicles equipped with sensors, such as buses and taxis, roaming around urban streets to detect on-street parking availability. Therefore, the accuracy of this scheme strongly depends on the vehicles' routes and the frequency of their passage through parking spots. This paper presents an integer programming-based optimal sensor allocation model to ensure the detection accuracy of the scheme while using the minimum number of sensing kits or probing vehicles. Moreover, a customized heuristic algorithm is proposed to hasten the solution process. Numerical simulations using the street dataset from San Francisco confirm the model's ability to reduce probing vehicle usage while ensuring detection accuracy. Thus, our approach represents an effective means of optimizing roadside parking detection in a crowdsensing way.

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