LIU Qiuyan is a Ph.D candidate in Beijing Jiaotong University and IEEE and 1EICE student member, and her current research interests on network planning and inter- ference analysis of mobile communication networks. SONG Jiaying is a Ph.D candidate in Beijing Jiaotong University and IEEE student member, her current research interests on capacity analysis in wireless Mesh network and WLAN. WANG Miao is a Ph,D candidate in Beijing Jiaotong University and IEEE student member, and her current research interests on network planning and interference analysis of mobile communication networks. ZHONG Zhangdui is a professor and doctor supervisor in Beijing Jiaotong University. His current research interests include wireless communication in personal wireless network and railway network.