5IEEE Std. 802. 11TM-2007. IEEE Standard for Informa tion Technology - Local and Metropolitan Area Networks-Specific Requirements Part 11: Wireless LAN Medium Ac- cess Control (MAC) and Physical Layer (PHY) Specifica- tions[S]. 2007.
6HEDDEBAUT M. Leaky Waveguide for Train-to-wayside Communication Based Train Control [J]. IEEE Transac- tions on Vehicular Technology, 2009, 58(3): 1068-1076.
7SARRIS I, NIX A R. Design and Performance Assessment of High-capacity MIMO Architectures in the Presence of a Line-of-sight Component[J]. IEEE Transactions on Vehic- ular Technology, 2007, 56(4): 2194-2202.
8LIU L, TAO C,QIU J H, et al. Position-based Modeling for Wireless Channel on High-speed Railway under a Via- duct at 2. 35 GHz[J]. IEEE JSAC, 2012, 30(4): 834- 845.