室内走廊环境高频段宽带无线信道测量与建模

Wideband channel measurements and modeling in indoor corridor at high frequency band

为了验证在高频段进行宽带无线通信的可行性,介绍了针对室内走廊环境进行的14GHz宽带无线信道测量和所获取的信道特征。基于频域信道冲激响应测量方法,设计搭建了宽带无线信道测量平台,较好地克服了高频段电波传播能量实时测量采集的难度。基于实测数据提取信道参数化模型,获取了高频段电波传播特性参数统计分析结果,包括路径损耗与阴影衰落、时延扩展、角度扩展。测试与分析结果表明:高频段电波传播时延小、方向性强,适用于宽带互联通信。

In this paper,channel measurement results and the corresponding charactiercs are reported based on indoor corridor channel measurement campaign in order to verify the feasibility of high frequency wideband wireless communication.Channel measurement platform is designed according to the measurement method of channel impulse response in frequency domain,which is able to overcome the difficuites of high frequency-band real-time channel measurement.Indoor channel parametric models are extracted from measurement data using high resolution broadband channel parameter estimation algorithm and relevant statistical analysis,including path loss,delay spread and angular spread.Results show that high frequency elecrtomagetic wave has characters as short delay spread and strong directional property,and is suitable for interconnection between wireless devices.