Demonstrating Advantages of Smart Antennas in Indoor Wireless Communications Systems

室内无线通信系统的性能受到多径信号传播的不利影响。 当接收信号下降到某一水平以下时，通常的做法是接收站请求发射设备增加其输出功率。该动作的不利影响是便携式收发器的电池寿命缩短，更多的功率向用户辐射，以及干扰增加。本项目的目的是展示一种保持高质量通信链路的替代方法。所提出的方法采用智能天线系统，以减轻多径和干扰的不利影响。

The performance of indoor wireless communications systems is adversely affected by multi-path signal propagation. When the received signal drops below a certain level, the usual practice is that the receiving station requests the transmitting device to increase its output power. An adverse effect of this action is a reduced life of battery of a portable transceiver, more power being radiating towards users and an increase of interference. The aim of this project is to demonstrate an alternative method of maintaining good quality communication link. The proposed method employs a smart antenna system to mitigate adverse effects of multi-path and interference.