信道状态信息对天线相关MIMO系统性能的影响
|
摘要
通过仿真研究基于联合传输技术(JT,Joint Transmit)的MIMO(Multiple input multiple output)系统中当天线相关时,发射端已知信道状态信息(CSI)和未知CSI时对系统性能的影响.基于JT的多用户MIMO下行链路模型,建立天线相关MIMO系统模型,分析未知CSI的信道模型,在TD-SCDMA系统应用环境下通过仿真,分析信道状态信息对天线相关JT-MIMO系统性能的影响.
The influence of known CSI and unknown CSI upon antenna-correlated MIMO system performance is studied based on joint transmit through simulation experiment.The paper has proposed multi-user MIMO downlink mode based on JT,on which set up antenna-correlated MIMO system model,analyzed the channel model of unknown CSI and in the last analyzed the influence of CSI upon antenna-correlated MIMO system performance through simulation experiment in TD-SCDMA system application.
The influence of known CSI and unknown CSI upon antenna-correlated MIMO system performance is studied based on joint transmit through simulation experiment.The paper has proposed multi-user MIMO downlink mode based on JT,on which set up antenna-correlated MIMO system model,analyzed the channel model of unknown CSI and in the last analyzed the influence of CSI upon antenna-correlated MIMO system performance through simulation experiment in TD-SCDMA system application.
引文
[1]谢显中.TD-SCDMA第三代移动通信系统技术与实现[M].北京:电子工业出版社,2004.
[2]M.Meurer,P.W.Baier,T.Weber,Y.Lu,A.Papathanassiou.Joint Transmission,an advantageous Downlink Concept for CDMA Mobile Radio Systems using Time Division Duplexing[A].IEE ELECTRONICS LETTERS Vol.36(2000)No.10:900-901.
[3]W.Qiu,H.Trger,and M.Meurer,“Joint transmission(JT)in multi-user MIMO transmission systems,”[J].EUROCOST,COST273TD(02)008,2002.
[4]谢显中,基于TDD的第四代移动通信技术[M].北京:电子工业出版社,2005.
[5]A.van Zelst and J.S.Hammerschmidt Proc,A single coefficient spatial correlation model for multiple-input multiple-output(MIMO)radio channels[A].URSI XXVIIth General Assembly,Aug.2002.
[6]G.D.Durgin and T.S.Rappaport,"Effects of Multipath Angular Spread on the Spatial Cross-Correlation of Received Voltage Envelopes"[A].49th IEEE Vehicular Technology Conference(VTC)1999,vol.2,pp.996-1000.
[7]M.Joham,R.Irmer,S.Berger,G.Fettweis,and W.Utschick.Linear Precoding Approaches for the TDD DS-CDMA Downlink[J].In Proc.WPMC'03,volume 3,pages 323-327,October 2003.
[2]M.Meurer,P.W.Baier,T.Weber,Y.Lu,A.Papathanassiou.Joint Transmission,an advantageous Downlink Concept for CDMA Mobile Radio Systems using Time Division Duplexing[A].IEE ELECTRONICS LETTERS Vol.36(2000)No.10:900-901.
[3]W.Qiu,H.Trger,and M.Meurer,“Joint transmission(JT)in multi-user MIMO transmission systems,”[J].EUROCOST,COST273TD(02)008,2002.
[4]谢显中,基于TDD的第四代移动通信技术[M].北京:电子工业出版社,2005.
[5]A.van Zelst and J.S.Hammerschmidt Proc,A single coefficient spatial correlation model for multiple-input multiple-output(MIMO)radio channels[A].URSI XXVIIth General Assembly,Aug.2002.
[6]G.D.Durgin and T.S.Rappaport,"Effects of Multipath Angular Spread on the Spatial Cross-Correlation of Received Voltage Envelopes"[A].49th IEEE Vehicular Technology Conference(VTC)1999,vol.2,pp.996-1000.
[7]M.Joham,R.Irmer,S.Berger,G.Fettweis,and W.Utschick.Linear Precoding Approaches for the TDD DS-CDMA Downlink[J].In Proc.WPMC'03,volume 3,pages 323-327,October 2003.