Summary
International Symposium on Antennas and Propagation
2005
Session Number:2POS-B
Session:
Number:2POS-B-13
Effect of LOS on SINR Characteristics of SDMA System in Urban Area
Nobuhiko Takemura, Hajime Kuwahara, Toshikazu Hori, Mitoshi Fujimoto, Kentaro Nishimori,
pp.-
Publication Date:2005/11/3
Online ISSN:2188-5079
DOI:10.34385/proc.33.2POS-B-13
Summary:
The Space Division Multiple Access (SDMA) system was proposed to improve the frequency utilization efficiency. In this paper, to grasp the effect of SDMA in a multi-path environment such as an urban area, Signal to Interference plus Noise power Ratio (SINR) characteristics in a city propagation environment are evaluated. Computer simulation results show that the fluctuation of the SINR depends on the height of the base station antenna and the location of the desired terminal. The results also show that the SINR value varies with the height of the BS antenna, and the SINR value becomes highest when the BS antenna is set to approximately 75 m. The SINR value in the case of Line Of Sight (LOS) is larger than that for Non-Line Of Sight (NLOS) when the BS antenna is set at a low location such as 50 m. However, the NLOS SINR value becomes larger than that for LOS when the BS antenna is set at a high location.