Full duplex C-RAN: Effects of power control

Abstract

This paper investigates the performance of cloud radio access networks (C-RAN) in different power control scenarios in full-duplex (FD) cellular networks. Results reveal that FD C-RAN performance drastically reduces with uplink (UL) power control. We proposed a power control scheme in downlink (DL), which uplifts the UL user rate, but at the cost of DL rate. With UL and DL power control, the average rate saturates after a threshold number of base stations (BS) coordination and has little impact on coordinating additional BSs. Besides, the state-of-the-art self-interference suppression (SI) of 130 dB provides almost equal performance compared to the perfect SI cancelation. Hence co-channel interference management becomes the bottleneck for FD system design. We used the Matern cluster process (MCP) to model the network.