Skip to main content

Table 1 Symbol definition

From: Robust power allocation for two-tier heterogeneous networks under channel uncertainties




Channel gain between the ith FU of the femtocell network k


and MBS.


transmit power of the ith FU in the femtocell network k.

I th

Maximum interference power that the MBS can tolerate.

\(\gamma _{i}^{k}\)

QoS requirement of the ith FU in kth femtocell.


Channel gain between ith FU-Tx and kth FBS.


Channel gain between jth FU-Tx and kth FBS.


Interference channel gain from the lth MU-Tx to the kth FBS.

p l

Transmit power of the lth MU.

\(\sigma _{i}^{k}\)

Background noise received at each FBS.