A Dynamic Cell Scheme for TD-SCDMA Based on Distributed Antenna Selection System
XU Jia-dong · Wireless Communication Technology · 2006
Distributed antenna in MIMO system can reduce the transmit power,which led to reduce the cell interference.Antenna selection can reduce the cost while maintaining the high potential data rate of a MIMO system.TD-SCDMA has time slot frame,different time slot can be assigned to different subset antenna to cover different cell.Based on these,a dynamic cell scheme is proposed in this paper,which has two steps to select the antenna: The first step,select a distributed subset antenna to cover a sell according to the location of user,the subset antenna was pre-assigned to avoid the complexity of antenna selection.The second step,choose the suitable antenna in a given subset to meet the maximal channel capacity.It will be shown via simulation that this scheme offers almost the same performance than common antenna selection systerm.