Dynamic Clustering Approach for Interference Cancellation in Downlink C-RAN

Coordinated MultiPoint (CoMP) transmission and reception is one of the popular method in cellular system which can improve average signal-to-noise-plus-interference ratio by mitigating the intra-cluster interference. But in case of cluster edge user, this method does not deal with inter cluster interference. It happens because of the limited size of CoMP cluster, which results minimal performance for the users at CoMP cluster boundaries. The Cloud Radio Access Network(C-RAN) is a new centralized paradigm which can efiicently address the challenges of cluster edge user. In this paper, we propose a C-RAN system model with dynamic clustering approach which can reduce inter-cluster interference. Compared to traditional CoMP cluster, C-RAN cluster decreases both the Bit Error Rate(BER) and the outage probability. And our simulation results prove the correctness of proposed scheme.