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(a) Allsebrook
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(b) Allsebrook with noise
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(c) Hata
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(d) Hata with noise
Figure 12: Comparison of predicted coverage maps for Portland, OR using two well-performing models, with and without the same scale Gaussian error included. True green indicates predicted recieved signal at −30 dBm, and true red indicates predicted recieved signal at the noise floor (−95 dBm). Intermediary values are linearly interpolated between these two color values.