Research of Multipoint Collaboration Transfer Technology in LTE-A System
Xiang-Tao Sun · Video Engineering · 2012
CoMP transmission and reception which is considered as one of the key techniques in LTE-Advanced system,can improve the data rates/coverage and the throughput of cell-edge users evidently.In this paper,principles and system model of CoMP are first introduced,and the selection of CoMP cooperating set is analyzed.In order to avoid system performance degradation by over CoMP,a reasonable maximum size of CoMP is given.And considering the traditional PF scheduling may cause sector throughput decrease,a proper scheduling mechanism which is called normalized PF for CoMP is proposed.Finally,comparing the average sectors throughput and the cell-edge users throughput,the performance of the two scheduling is simulated under different CoMP cooperating set decision,then the advantages of the normalized PF can be obviously found out.