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Abstract
This paper presents the radio propagation measurement, simulation, and analytical results in the 41-GHz millimeter-wave band for non-line-of-sight scenarios in a confined in-building corridor environment. High gain directional antennas are used at both the transmitter and receiver to realize long-distance transmission. Directional channel characteristics of the 41-GHz band, including the path loss model, the root-mean-square delay spread, the multipath statistics, the small scale fading characteristics, the power delay profile, and the power levels received from different antenna directions at different locations, are analyzed in detail. Moreover, in the investigation of the path loss models, we employ ray tracing simulations to extend the path loss model to a more general form so that the structural characteristics of the corridor, such as the length of the line-of-sight section and the corridor corner angle, are considered as modeling parameters. The effects of different transmit/receive antenna locations on the path loss model are also investigated. The combined effects of the highly directional antennas and the confined corridor environment on the wireless channel characteristics are analyzed in detail.
Highlights
Due to the increasing demand for high data rate transmission, additional spectrum bands are expected to be exploited to address the spectrum scarcity problem in traditional bands and support more data traffic for various multidata services
For dRX→Cor = 1.8 m, power levels above 10 dBm are observed at directions ranging from 30◦ to 125◦, while this range reduces to 75◦ − 110◦ and 85◦ − 95◦ for 16.2 m and 30.6 m, respectively, indicating that the signal coming from the direction with large θ fades faster than the signal from the direction with small θ
This paper presents the measurement results and analysis obtained from a recent campaign conducted in a tunnel-like corridor in UESTC
Summary
Measurement campaigns have been conducted in different environments according to various potential applications of mmWave communications, for example, mmWave for indoor short-distance transmissions [10]–[13], for underground mine communications [14], [15], and for high speed train (HST) services [16]–[18] Given all these studies mentioned above, more research on mmWave channel measurements and analysis is required. The impacts of different antenna locations and different corner angles on mmWave propagation are not modeled In this paper, these problems are addressed by analyzing the raw data obtained from measurements and RT simulations.
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