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Table 5 Comparison of signal fingerprinting approaches based on RSSI, RSRP, CSI vectors, and RSRP/CSI descriptors (1 cell, 50 RBs)

From: CSI-based fingerprinting for indoor localization using LTE Signals

Fingerprint MDE CDF 50% CDF 75% RCA Descriptors
  [m] [m] [m] [%]  
RSSI 4.12 4.17 5.35 28
RSRP 3.22 2.14 4.50 55
CSI 3.10 2.28 3.90 61
2 descriptors 2.48 1.89 3.36 69 CSI mean
      CSI 2nd spectral central mom.
3 descriptors 2.24 1.89 3.18 56 CSI mean
      CSI spectral entropy
      CSI spectral spread
4 descriptors 2.11 1.82 2.93 65 CSI mean
      CSI spectral lambda
      CSI spectral kurtosis
      CSI spectral flatness