Title :
Characterization of spatial channel model based on ray path analysis in high-rise urban environment
Author :
Kwak, Do-Y Oung ; Kang, Nogyoung ; Lee, Jaewon ; Kim, Seong-Cheol ; Choi, Joonsoo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
Abstract :
The strongest ray analysis based on the computer simulation of wave propagation between a base station(BS) and mobile stations(MSs) is carried out to obtain the spatial-time wideband channel characteristics. The strongest rays are responsible for about 70% of the total received power for BS-MS pairs on the average and their arrival angles rarely deviate from the shortest path lines between a BS and MSs. However, this does not mean that the strongest ray is necessarily the first arrived ray for each BS-MS pair. The AOA statistics reveal that AOAs of the strongest and the second strongest rays are very close to each other for uplink channel, while those are quite apart for downlink channel.
Keywords :
broadband networks; direction-of-arrival estimation; mobile communication; radiowave propagation; ray tracing; telecommunication channels; arrival angles; base station; computer simulation; downlink channel; high-rise urban environment; mobile stations; ray path analysis; shortest path lines; spatial channel model; spatial-time wideband channel characteristics; strongest ray analysis; uplink channel; wave propagation; Accuracy; Adaptive arrays; Computational modeling; Computer science; Computer simulation; Diffraction; Mobile communication; Mobile computing; Predictive models; Statistics;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264415
