Title :
Analysis of the Relation Between Fresnel Zone and Path Loss Exponent Based on Two-Ray Model
Author :
He, Ruisi ; Zhong, Zhangdui ; Ai, Bo ; Ding, Jianwen ; Guan, Ke
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
In this letter, the underlying factor that leads to the change of path loss exponent n is investigated, using a reasonable and reliable indirect demonstration that is based on the simple two-ray model and a developed multiray model. It is found that the first Fresnel zone is the underlying factor that affects n. n will change only if the situation of the obstacles in the first Fresnel zone changes. The conclusion helps to understand the essences of the propagation.
Keywords :
radiowave propagation; Fresnel zone; electromagnetic wave propagation; multiray model; path loss exponent; relation analysis; two-ray model; Analytical models; Antennas; Fresnel reflection; Receivers; Shadow mapping; Wireless communication; Electromagnetic wave propagation mechanisms; Fresnel zone; path loss exponent; two-ray model;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2187270
