Optimization of Wireless Communication Coverage in Underground Tunnels Based on Zone Division

Table 3

Experimental settings: parameters of the measure tunnel.

Parameters of cross-section	Wide tunnel	Narrow tunnel
Shape	Arched	Arched
Radius	2.69 m	1.54 m
Floor width	5.12 m	2.82 m
Maximum height	3.56 m	2.16 m