通信学报2011，Vol.32Issue(3)：79-85,7.
TDD-MIMO系统中由I/Q不平衡引起的信道非互易性补偿方法
Compensation for channel non-reciprocity caused by I/Q imbalance in TDD-MIMO systems
摘要
Abstract
The bad effect of channel non-reciprocity on system capacity was analyzed and a calibration algorithm was proposed for compensation. By link measurement, BS and MS get the channel state information (CSI) of uplink and downlink channels. Then the CSI was gathered by BS to figure out the calibration matrices to be used by BS and MS respectively. Simulation results show that the proposed algorithm can effectively compensate I/Q imbalance, regain the channel reciprocity, and hence eliminate the system capacity loss.关键词
TDD-MIMO/I/Q不平衡/信道互易性/系统容量Key words
TDD-MIMO/ I/Q imbalance/ channel reciprocity/ system capacity分类
信息技术与安全科学引用本文复制引用
孙德春,张霏霏,刘祖军,易克初..TDD-MIMO系统中由I/Q不平衡引起的信道非互易性补偿方法[J].通信学报,2011,32(3):79-85,7.基金项目
高等学校学科创新引智计划(B08038) （B08038）
国家科技重大专项(2009zx03003-001-02) （2009zx03003-001-02）
