Construction and Evaluation of Array Signal Testbed in FDD Macrocell System

• Main Authors: Chuen-Heng Wang, 王淳恆
• Other Authors: Jenn-Hwan Tarng
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/65493171731097643441

碩士 === 國立交通大學 === 電信工程系 === 88 === In this thesis, two-dimensional and three-dimensional UHF radio site-specific modes have been developed to discuss the UHF radio in Campus, which is similar to macrocell environment. We establish radio propagation of site-specific mode by using uniform theorem of diffraction, geometric optics and ray-tracing method. The mode gives consideration to direction path, reflection path and diffraction path. In order to understand the vector channel characteristic of array antenna operating in macrocell environment, a 3-D site-specific propagation model was developed to investigate the angle spread statistics of AOA(Angle of Arrival) in urban and rural areas, for various base station antenna heights, operation frequency and azimuth distance between base station and mobile station. Finally, we use the channel characteristic of smart antenna in macrocell to build a frequency division duplexing system. It use the spatial characteristic of up-link to build the beamforming of down-link, furthermore, it investigates the performance of this construction by means of radio propagation model of site-specific.