Zhiping Jiang, Wei Xi, Xiangyang Li, Shaojie Tang, Jizhong Zhao, Jinsong Han, Kun Zhao, Zhi Wang, Bo Xiao: Communicating Is Crowdsourcing: Wi-Fi Indoor Localization with CSI-Based Speed Estimation. J. Comput. Sci. Technol. 29(4): 589-604 (2014)