Storage Management Strategy in Mobile Phones for Photo Crowdsensing

Sensors

Xinyao Liang¹  Yongjian Yang²  En Wang²  Xiangyu Meng²  Weibin Meng³  Dawei Li⁴  Zhengdao Qu⁵ 

[1] College of Business Administration, Anhui Finance and Economics University, Anhui 233030 China;Department of Computer Science and Technology, Jilin University, Changchun 130012, China;Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China;Department of Computer Science, Montclair State University, Montclair, NJ 07043, USA;Department of Software, Jilin University, Changchun 130012, China;

关键词: mobile crowdsensing;    edge computing;    photo crowdsensing;    storage management;    utility-based;   

DOI  :  10.3390/s20082199

来源: DOAJ

【 摘 要 】

In mobile crowdsensing, some users jointly finish a sensing task through the sensors equipped in their intelligent terminals. In particular, the photo crowdsensing based on Mobile Edge Computing (MEC) collects pictures for some specific targets or events and uploads them to nearby edge servers, which leads to richer data content and more efficient data storage compared with the common mobile crowdsensing; hence, it has attracted an important amount of attention recently. However, the mobile users prefer uploading the photos through Wifi APs (PoIs) rather than cellular networks. Therefore, photos stored in mobile phones are exchanged among users, in order to quickly upload them to the PoIs, which are actually the edge services. In this paper, we propose a utility-based Storage Management strategy in mobile phones for Photo Crowdsensing (SMPC), which makes a sending/deleting decision on a user’s device for either maximizing photo delivery ratio (SMPC-R) or minimizing average delay (SMPC-D). The decision is made according to the photo’s utility, which is calculated by measuring the impact of reproducing or deleting a photo on the above performance goals. We have done simulations based on the random-waypoint model and three real traces: roma/taxi, epfl, and geolife. The results show that, compared with other storage management strategies, SMPC-R gets the highest delivery ratio and SMPC-D achieves the lowest average delay.

【 授权许可】

Unknown