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This paper presents time-variant channel characteristics at the 20-GHz band for line of sight (LoS) scenarios in an urban street canyon environment. A measurement campaign is conducted using a channel sounder for the 20-GHz band with a 50-MHz-bandwidth orthogonal frequency-division multiplexing signal. A uniform planar array (UPA) in a 16-by-16 matrix is used on the receiver side to measure time-variant...
Previous correlation-based wideband multiple-input–multiple-output (MIMO) channel models have been limited to non-line-of-sight (NLoS) scenarios where simple antenna correlation measurements are sufficient to describe the correlated Gaussian process representing the fading statistics. However, in the presence of line-of-sight (LoS) or specular reflections, simple antenna correlation measurements unfortunately...
The safety of on-duty firefighters in indoor environments could be increased by ensuring reliable, high-data rate communication in potentially life-threatening situations. This increases their situational awareness, strengthens their decision making and decreases response time by ensuring efficient indoor communication of sensor data, biometric data, pictures or videos. Therefore, a real-life rescue...
Channel frequency and spatial correlation are essential for adaptive channel prediction, which enables flexible scheduling. This correlation information is determined by the environment and can be learned and stored in a map to avoid online tracking. In this paper we propose a method to generate a channel frequency-spatial correlation map from the measurement campaign. Only two position-dependent...
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