An MBS-Assisted Femtocell Transmit Power Control Scheme with Mobile User QoS Guarantee in 2-Tier Heterogeneous Femtocell Networks

Table 1

Parameters of different traffic types [8].

Index	Service type	BER	SINR	Timeout	Characteristic
1	Voice	10^−3	5.31	2 frames	Delay sensitive; Talkspurt and silence
2	Audio	10^−4	7.31	6 frames	Delay sensitive; Stream
3	CBR video	10^−5	9.32	5 frames	Delay insensitive; Constant bit-rate
4	VBR video	10^−6	11.34	4 frames	Delay insensitive; Variable bit-rate
5	Data	0	2.94	∞	Delay insensitive; Variable size