Institute of Electrical & Electronic Engineers
In emerging wireless communication networks with small cells, interference is one of the main causes of performance degradation, and thus handling interference properly is critical for the network design. Among several interference-handling schemes, coordinated processing among Base Stations (BSs) with multiple antennas has been studied extensively as one of the key techniques for the 3GPP LTE-Advanced standard under the name of Cooperative Multi-Point (CoMP) transmission. For the downlink CoMP transmission, Joint Processing (JP) and Coordinated Beamforming (CB) schemes are mainly considered. In JP, multiple BSs collaborate and transmit data to Mobile-Stations (MSs) in the collaborating cells with the assumption of full data and Channel State Information (CSI) sharing among the collaborating BSs.