K. Lee, I. Rhee, J. Lee, Y. Yi, and S. C. Comp, Mobile data offloading: how much can wifi deliver, Comm. Rev, vol.41, issue.4, 2010.
DOI : 10.1109/tnet.2012.2218122

Y. Zheng, X. Xie, and W. Ma, Geolife: A collaborative social networking service among user, location and trajectory, IEEE Data Eng. Bull, vol.33, issue.2, pp.32-39, 2010.

S. Dimatteo, P. Hui, B. Han, and V. Li, Cellular Traffic Offloading through WiFi Networks, 2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems, pp.192-201, 2011.
DOI : 10.1109/MASS.2011.26

E. Bulut and B. K. Szymanski, Wifi access point deployment for efficient mobile data offloading, Proceedings of the First ACM International Workshop on Practical Issues and Applications in Next Generation Wireless Networks, ser. PINGEN '12, pp.45-50