Preamble Time-domain LS Channel Estimation Algorithm for MIMO-OFDMA Systems

摘要：

The paper is to resolve the error floor for SUI-5 channel.Since the pilot allocation is solid,we can’t modify it exhaustively.So we combine the preamble and pilot carrier to resolve the problem.Here we introduce preamble time-domain LS(Least-squares Estimation)algorithm for consult.Simulation result shows that if we select channel estimation algorithm properly,combing preamble and pilot can improve the performance.We also conclude that pilot only scheme exits error floor when the coherent bandwidth of channel is narrow,and preamble only scheme can decrease the error floor drastically when the coherent bandwidth of channel is narrow,however it can’t trace the fast fading channel.

作者: LU Xin LIN Guangming Wang Jianhua

作者单位: Shenzhen institute of information technology,Shenzhen 518029,China Shenzhen institute of information technology,Shenzhen 518029,China;School of Information Technology

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）