论文标题
环境意识无线通信的无线电技术
Radio technologies for environment-aware wireless communications
论文作者
论文摘要
在本文中，我们批判性地回顾了当今的无线无线通信系统的潜力，包括无线蜂窝技术（GSM，UMTS，LTE，NR），无线局域网（WLAN）和无线传感器网络（WSN），用于估算渠道状态信息（CSI），培训和信息范围内的范围和符号速率和符号率之间的频道和信息率之间的频率和信息率之间的范围以及范围内的范围和信息。研究表明，早期通信系统为窄带通道估计提供了手段，并且CSI仅基于信号水平测量值作为通道衰减。通过增加通信的光谱带宽，在几乎所有当前使用的无线电技术中，CSI以某种形式的通道脉冲响应（CIR）进行了估算，但是这些信息通常在通信系统之外不可用。同样，CSI仅针对具有主动通信的通道估算。新的无线电技术（NR）也提供了估计非活动渠道CIR的可能性，因此有可能启动具有环境意识到的无线通信的可能性。
In this paper, we critically review the potential of today's terrestrial wireless communication systems including wireless cellular technologies (GSM, UMTS, LTE, NR), wireless local area networks (WLANs), and wireless sensor networks (WSNs), for estimating channel state information (CSI), the ratio between training and information symbols and the rate of channel variation, and the potential use of CSI in environment aware wireless communications. The research reveals, that early communication systems provide means for narrowband channel estimation and the CSI is only available as channel attenuation based on signal level measurements. By increasing the spectral bandwidth of communications, the CSI is estimated in some form of channel impulse response (CIR) in almost all currently used radio technologies, but this information is generally not available outside the communication systems. Also, the CSI is estimated only for the channel with active communications. The new radio technology (NR) offers the possibility of estimating the CIR for non-active channels as well, and thus the possibility of initiating environmentally aware wireless communications.
