Simplified Channel Estimation Using Special Training Sequence for MIMO-OFDM Systems

摘要：

In this paper two methods are proposed to improve the performance of the MIMO-OFDM systems in the presence of inter-symbol interference: special training sequence design and simplified channel estimation. The special training sequence has a desirable creast-factor bothin time domain and frequency domain. By using this sequence no matrix inverse is required. Simulation results show that the proposed method outperforms the conventional method with respect to the mean square error of the estimated channel in the presence of ISI by more than 20 dB if the SNR is high.

关键词： MIMO-OFDM systems Channel Training-Sequence Transmit Diversity

作者: He Zhong Tang Chen Zi Li

作者单位: Nanjing University of Posts and Telecommunications, NanJing China XuZhou Airforce Institute,XuZhou China

会议类型: 国际会议

会议名称: 2005年无线通信、网络和移动计算国际会议

会议地点: 武汉

会议语种:英文

页码: 19-23

在线出版日期: 2005-09-23（万方平台首次上网日期，不代表论文的发表时间）