A Joint Channel Estimation and Detection Algorithm for OFDM Systems with Short Cyclic Prefix

摘要：

Combined with the matrix expression of OFDM system, a joint channel estimation and detection algorithm for short Cyclic Prefix (CP) OFDM system is proposed. The proposed algorithm uses the predicted channel response and last detected data symbol provided by the WLMS algorithm to remove the interblock interference (IBI). At the same time, to reduce the complexity of the proposed algorithm, we present an iterative interference cancellation algorithm which eliminates the sub-carrier interference of short CP-OFDM system. The simulation results show that the proposed algorithm achieves its reliable channel estimation and data detection. Compared with long CP-OFDM systems, the system efficiency is improved and the system performance loss is little.

作者: Binfeng Bai Mingyue Wang Yueming Cai

作者单位: Nanjing Telecommunication Technology Institute Nanjing, China Institute of Communications Engineering, PLA Univ.of Sci.& Tech Nanjing, China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）