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1 Journal of Telecommunications and Information Technology

1 2019

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LoCO: Local Cooperative Data Oﬄoading System Based on Location Information

Yamazaki Taku, Asano Kazuma, Arai Satoshi, Shimomura Yusuke, Miyoshi Takumi

Journal of Telecommunications and Information Technology

2019

nr 1

67--75

The development of high speed mobile networks and the widespread use of smartphones have enabled users to easily obtain large data volumes via the Internet. This causes a heavy consumption of network resources, a burden on the available bandwidth. To solve such problems, a data oﬄoading method with a wireless LAN access point has been used to distribute traﬃc from mobile to ﬁxed networks. However, the method using wireless LAN access points can only change the communication paths but cannot reduce the overall traﬃc. This paper proposes a local cooperative data ofﬂoading system (LoCO) that reduces the overall traﬃc by sharing data, with direct communication between neighbors based on their location-related information. Moreover, the authors implemented the LoCO system on Android smartphones and clariﬁed its performance in comparison with a traditional client/server system through experiments to download data in a real-world environment.