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In heterogeneous networks (HetNets), the deployment of small cells is accompanied by load balance and interference problems. A time-domain solution is enhanced Inter-Cell Interference Coordination (eICIC), which involves two parameters: Cell Range Extension (CRE) bias and Almost Blank Subframe (ABS) ratio. The centralized algorithm of jointly optimizing these two parameters is time consuming and is...
Physical layer security in the presence of passive eavesdroppers (i.e., the eavesdroppers' channels are unknown to the transmitter) in correlated channels is addressed. The majority of the literature with passive eavesdroppers assumption focus on uncorrelated channels and random artificial noise (AN) generation in the null space of the legitimate channel. This paper targets joint optimization of the...
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