Model Accuracy and Sensitivity Assessment Based on Dual-Band Large-Scale Channel Measurement

In this paper, by using a dual-band channel sounder equipped with omnidirectional antennas, we have measured and investigated the propagation parameters including path loss and shadowing at 1.79 and 4.9 GHz in the typical non-line-of-sight (NLOS) urban macrocell (UMa) scenario. Two different large-scale channel models, the alpha-beta-gamma (ABG) model and the close-in model with a frequency-weighted path loss exponent (CIF), are derived according to the channel measurement data. Finally, we compare the parameter values, shadow fading (SF) standard deviations, and prediction errors of the two models, and evaluate the accuracy and sensitivity with respect to the measurement data. The numerical results show the improvement in the channel fading estimation of the CIF model compared with the ABG model.

[1]  Yi Zheng,et al.  Propagation Characteristics of Indoor Radio Channel from 3.5 GHz to 28 GHz , 2016, 2016 IEEE 84th Vehicular Technology Conference (VTC-Fall).

[2]  Yang Li,et al.  3D channel model in 3GPP , 2015, IEEE Communications Magazine.

[3]  Andreas F. Molisch,et al.  Spatially Consistent Street-by-Street Path Loss Model for 28-GHz Channels in Micro Cell Urban Environments , 2017, IEEE Transactions on Wireless Communications.

[4]  Bin Li,et al.  Extension of 3GPP 3-dimensional channel models for large-scale parameters in the gymnasium scenario , 2017, 2017 International Applied Computational Electromagnetics Society Symposium (ACES).

[5]  Dirk Pesch,et al.  Empirical path loss model for 2.4 GHz IEEE 802.15.4 wireless networks in compact cars , 2018, 2018 IEEE Wireless Communications and Networking Conference (WCNC).

[6]  Lin He,et al.  Path Loss Measurement and Modeling for Low-Altitude UAV Access Channels , 2017, 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall).

[7]  Theodore S. Rappaport,et al.  Investigation of Prediction Accuracy, Sensitivity, and Parameter Stability of Large-Scale Propagation Path Loss Models for 5G Wireless Communications , 2016, IEEE Transactions on Vehicular Technology.

[8]  Theodore S. Rappaport,et al.  Millimeter-wave distance-dependent large-scale propagation measurements and path loss models for outdoor and indoor 5G systems , 2015, 2016 10th European Conference on Antennas and Propagation (EuCAP).