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In this paper, the channel propagation measurements have been performed in indoor scenario at 3.5, 6, 14, 23, 26 and 28 GHz. The measured cases include line-of- sight (LOS) and non-line-of-sight (NLOS) propagation. Statistical results and comparative analysis are presented in this paper, including path loss (PL) and root mean square (RMS) delay spread (DS). Both floating-intercept (FI) path loss model...
The millimeter-wave band will be one of the most key components in the next generation wireless communication system. In this paper, a radio channel measurement was conducted in an indoor office environment at 28 GHz with 500 MHz bandwidth. The channel sounder with the clock synchronization was used to measure in both line-of-sight (LoS) and none- line-of-sight (NLoS) scenarios. The channel impulse...
In this paper, the mobile channel propagation measurements at 3.5 GHz and 6 GHz have been performed in urban micro-cell scenario in the city of China. The measured cases include line-of-sight (LOS) and non- line-of-sight (NLOS) propagation. Statistical results and comparative analysis are presented in this paper, including power delay profiles (PDPs), path loss (PL), coverage, and root mean square...
In this paper, the channel measurements for 5th generation mobile networks (5G) potential spectrum at 3.35 GHz, 4.9 GHz and 5.4 GHz have been performed in the urban macro cell scenarios in China. The measured cases include line-of-sight (LOS) and non-line-of-sight (NLOS) propagation. After acquiring the channel impulse response from the measurement data, the empirical log-distance path loss models...
In the last few years, the growing demand of wireless data services has brought great pressure on wireless network in dense urban environment Small cells are widely deployed to increase data capacity. But when the outdoor base station and indoor users in high-rising buildings get close, indoor users begin to suffer dramatic change in path loss due to height difference between the transmitter (TX)...
In this paper, we present an indoor channel measurement system at 28 GHz and analysis result of propagation characteristics. The measurement system consists of a vector network analyzer (VNA) and a pair of 26 dBi horn antennas. It makes reliable wireless links with a maximum distance up to 30 meters. Measurement campaign was conducted in Beijing with three different indoor scenarios including office,...
In this paper we present single antenna relay channel measurements conducted in an urban environment at 2.35 GHz. Three types of links, i.e. base station to mobile station (BS-MS), relay station to mobile station (RS-MS) and base station to relay station (BS-RS), were measured at two sites. Our investigation focuses on the characteristics of large scale parameters (LSP) of the RS-MS link, which is...
In order to evaluate the relay performance for IMT-Advanced systems, the propagation characteristics of relay channels are necessary, especially in urban environments. We conducted wideband relay channel measurements at 2.35 GHz in urban environments of China by employing a real-time channel sounder. Three types of links, i.e. base station to mobile station (BS-MS), relay station to mobile station...
Based on the channel measurements at 5.25 GHz in the hotspot area, empirical path loss (PL) models are developed and discussed for the IMT-Advanced system design. The measured scenarios include indoor line-of-sight (LOS), non-LOS, outdoor LOS/obstructed LOS, and outdoor-to-indoor propagations. The PL exponent, intercept, and standard deviation of shadow fading are obtained by using the least square...
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