In recent years, indoor wireless communication systems and practical applications have been a very active area of research.
近年来，室内无线通讯系统和实际应用成为研究的热门领域。
As one of the field coverage methods, leaky coaxial cables can be used not only in the wireless communication systems in tunnels, but also in to the indoor wireless communication systems.
作为一种场强覆盖手段，漏泄同轴电缆不但能够应用于隧道无线通信系统，而且近年来也被应用于室内无线通信系统。
A novel ranging method for wireless sensor nodes in complex indoor communication environment is proposed.
提出一种能够适用于复杂室内通信环境的无线传感器网络节点间的测距新方法。
UWB is an important technology for indoor high rate wireless communications and now it is looked as one of the key technologies for the next generation wireless communication systems.
在这样的背景下，超宽带(uwb)技术引起了人们的重视，已逐渐成为无线通信领域研究、开发的一个热点，并被视为下一代无线通信的关键技术之一。
Using the idea of CDMA, an automatic beam selection scheme for indoor diffuse wireless infrared communication systems is presented.
文章应用码分多址的思想，提出一种具有自动波束选择的室内漫射红外通信系统方案。
For the indoor wireless communication system, a new dual-band antenna with U-shaped reflector is designed. By increasing the thickness of the air medium, the wider frequency band is achieved.
对于室内覆盖无线接收系统，提出了一种新型的基于U型反射板的双频天线单元形式，采用厚的空气介质层以展宽带宽。
For the indoor wireless communication system, a new dual-band antenna with U-shaped reflector is designed. By increasing the thickness of the air medium, the wider frequency band is achieved.
对于室内覆盖无线接收系统，提出了一种新型的基于U型反射板的双频天线单元形式，采用厚的空气介质层以展宽带宽。
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