A Channel Estimation Technique for MIMO-OFDM Systems Based on Superimposed Comb Type Pilot

摘要：

This paper proposes a comb-type pilot inserted scheme and channel estimation technique for MIMO-OFDM systems. In the proposed scheme, the pilot tones sent by different transmit antennas can be superimposed on the same sub-carrier due to the pilot symbol orthogonality. This can save bandwidth and increase the system data rates. At the receiver, by separating the orthogonal pilot tones, the sampled frequency response could be obtained, and then used to track the whole channel frequency response in real time through interpolation. Due to the save of pilot sub-carriers and the real time tracking ability in the proposed algorithm, simulation results show effective performance in static and mobile situation.

关键词： channel estimation MIMO-OFDM systems

作者: Weikun Hou Wu Ye Suili Feng

作者单位: School of Electronics & Information Engineering South China University of Technology South China University of Technolog

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）