Resource Allocation with Partial Channel Information in Correlated Channels for Multiuser STBC-BF MIMO-OFDM Downlink

摘要：

To minimize the overall transmit power while maintaining a constant data rate and target BER,a downlink adaptive resource allocation algorithm with G type channel estimated error at the base station is proposed for multiuser space-time block coding and beam forming (STBC-BF) MIMO-OFDM systemIncorrelated channels. The algorithm allocates the subcarriers with the shared manner.A null steering processing based on main angle of direction of departure (DOD)is used to suppress co-channel interference (CCI),construct uncorrelated channels for STBC,and reduce the number of base station (BS) transmit antennas. An adaptive power allocation for the STBC equivalent channels increases the signal to interference and noise ratio at the receiver. The simulation results show that despite the partial channel status information (CSI) and the angle spread of DOD,the proposed algorithm improves the system performance.

作者: Zhang Chengwen Liao Minghong Zhang Zhongzhao Guo shizeng

作者单位: Communication Research Center,Harbin Institute of Technology,Harbin,150080,P.R.China School of Compu School of Computer Science and Technology,Harbin Institute of Technology,Harbin 150001,P.R.China Communication Research Center,Harbin Institute of Technology,Harbin,150080,P.R.China

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 2010-2013

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）