Multipath propagation model of spatio-temporal dispersion observed at base station in urban areas
Tóm tắt
This paper presents a multipath propagation model for microcells in urban areas. The proposed model is a statistical geometric model that describes the propagation characteristics for propagation loss, power delay profiles, and power azimuth spectra. The applicable target of the proposed model is long-term characteristics such as the characteristics that depend on the height of a base station (BS) and the distance between the BS and a mobile station. Calculated power delay profiles and power azimuth spectra based on the model are similar to those of the power function. In order to verify the validity of the model, the power delay profiles and power azimuth spectra are measured. The measurement results agree well with the simulation results based on the model and the validity of the model is confirmed.
Từ khóa
#Base stations #Urban areas #Solid modeling #Power system modeling #Antenna measurements #Propagation losses #Azimuth #Scattering #Delay #ReflectionTài liệu tham khảo
lu, 1997, a physical spatio-temporal model of multipath propagation channels, Proc IEEE Vehicular Technology Conf (VTC), 810
10.1109/TAP.1984.1143419
10.1109/8.14401
jakes jr, 1974, Microwave Mobile Communications
10.1049/ip-f-1.1986.0083
kozono, 1987, correlation coefficient on base station diversity for land mobile communication systems, IEICE Trans Commun, j70 b, 476
ebine, 1990, a study of vertical space diversity for land mobile radio, IEICE Trans Commun, j73 b ii, 286
ogawa, 1986, path visibility and reflected wave propagation characteristics in built-up areas, IEICE Trans Commun, j69 b, 958
10.1002/ecja.4410761009
10.1109/TCOM.1986.1096594
10.1109/VETEC.1997.596319
10.1109/25.832973
10.1109/VETEC.1996.501430
10.1109/25.832975
10.1023/A:1018666714461
miura, 2000, new angular profile model for urban propagation channels, Proc Int Symp Antennas Propagation (ISAP2000), 1, 253
10.1109/TCOM.1977.1093888
10.1109/T-VT.1972.23492
10.1049/ip-rsn:19981750
correia, 2001, Wireless Flexible Personalised Communications, 167