Question

Which of the most widely used model for signal prediction in urban areas?

(a) Ericsson Multiple Breakpoint Model

(b) Log distance path loss model

(c) Okumura model

(d) Attenuation factor model

I have been asked this question in an international level competition.

This intriguing question comes from Outdoor Propagation Models in section Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

Correct option is (c) Okumura model

For explanation: Okumura’s model is one of the most widely used models for signal prediction in urban areas. This model is applicable for frequencies in the range 150 MHz to 1920 MHz (Extrapolated upto 3000 MHz).