Energy Efficiency and Capacity Tradeoff in Cloud Radio Access Network of High-Speed Railways

Table 1

Parameters in simulation.

Parameter	Description	Value
	Vertical distance	50 m
	Coverage distance	1500 m
	Train speed	350 km/h
	Path loss exponent	3
	Service processing capacity	6 bits/s
	Data arrival rate	5 bits/s/Hz
	Delay constraint	400 ms
	Frequency compensation	1 dB
	Average power threshold	40 w