NIST researchers have conducted high-precision measurements of small-scale fading in mmWave frequencies, finding that the fading is weaker than previously thought. The study, published in the IEEE Open Journal of Vehicular Technology, demonstrates that the correlation distance – the distance over which the channel can be considered stationary – is longer at mmWave frequencies compared to lower frequencies. Additionally, the research shows that the correlation distance depends on beamwidth, with wider beams resulting in shorter correlation distances. This comprehensive evaluation of the impact of beamwidth on correlation distance provides valuable insights for the design and optimization of mmWave communication systems.
Source: https://www.nist.gov/ctl/wirelessnet/small-scale-fading
Keywords: Correlation distance, Beamwidth, mmWave frequencies, Interference, Channel stability
