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首页> 外文期刊>IEEE Transactions on Vehicular Technology >Wide-band SIMO 1×2 measurements and characterization of outdoor wireless channels at 1.9 GHz
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Wide-band SIMO 1×2 measurements and characterization of outdoor wireless channels at 1.9 GHz

机译：1.9 GHz的室外无线信道的宽带SIMO 1×2测量和特性

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摘要

This paper aims at characterizing the spatial wireless channel at 1.9 GHz, based on a 1×2 measurement chain. A typical campus/residential area and an industrial area have been investigated. The measurement equipment is constituted by an 80-MHz transmitter at 1.9 GHz, located at the top of a building. At the receiver, two omnidirectional antennas are connected to a wide-band channel sounder through a switch in order to measure an estimate of the instantaneous vector channel. It is found that the Ricean K-factor and the delay spread are lognormally distributed, while the azimuth spread at the receive side follows a Gaussian distribution. The range dependence of various parameters are pointed out and compared with empirical models. The impacts of antenna spacing and array orientation on the channel correlation are highlighted and compared to theoretical simulation results. Finally, the cross-correlation properties between K-factor, delay spread, azimuth spread, and channel correlation are analyzed.
机译：本文旨在基于1×2测量链来表征1.9 GHz的空间无线信道。已经研究了典型的校园/住宅区和工业区。测量设备由位于建筑物顶部的1.9 GHz的80 MHz发射机组成。在接收机处，两个全向天线通过开关连接到宽带信道探测仪，以测量瞬时矢量信道的估计值。结果发现，Ricean K因子和延迟扩展呈对数正态分布，而接收侧的方位角扩展则遵循高斯分布。指出了各种参数的范围依赖性，并与经验模型进行了比较。强调了天线间距和阵列方向对信道相关性的影响，并将其与理论仿真结果进行了比较。最后，分析了K因子，延迟扩展，方位角扩展和信道相关之间的互相关特性。

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