Coordinated Multiple Points Transmission for LTE-Advanced Systems

LTE-Advanced systems which based on orthogonal frequency division multiplexing (OFDM) can eliminate intra-cell interference but still can not mitigate inter-cell interference (ICI). Coordinated multi-point transmission/reception (CoMP) is one of the candidate techniques for LTE-Advanced systems to increase the average cell throughput and cell edge user throughput in the both uplink and downlink. Although CoMP naturally increases system complexity, it has potentially significant capacity and coverage benefits, making it worth a more detailed consideration. In this paper, we focus on the downlink CoMP-MU-MIMO transmission scheme and present some system level performance evaluation which shows that the CoMP-MU-MIMO transmission scheme can bring significant gains to both the average cell throughput and the cell edge user throughput.