A Joint WLMS Channel Estimation and Detection Algorithm Based on Turbo Iteration in OFDM Systems
Bai Bin-feng①②; Cai Yue-ming①; Xu Xin①
①Institute of Communications Engineering, PLAUST, Nanjing 210007, China; ②The 63rd Research Institute of PLA General Staff Headquarters, Nanjing 210007, China
Abstract：A joint WLMS channel estimation and detection algorithm based Turbo iteration is proposed in this paper. Using the soft information provided by the soft mapping and demapping algorithms, the proposed algorithm achieve its information exchange between detection module and channel estimation module. The channel response is updated symbol by symbol by using the WLMS channel estimation and tracking algorithm. The simulation results show that the BER performance had converged after two iterative, and there is only 0.4-0.5dB performance losing compared with ideal channel estimation at a system BER of 10-3.
白宾锋; 蔡跃明; 徐信. OFDM系统中基于Turbo迭代的WLMS联合信道估计和检测算法[J]. 电子与信息学报, 2007, 29(1): 152-156 .
Bai Bin-feng; Cai Yue-ming; Xu Xin. A Joint WLMS Channel Estimation and Detection Algorithm Based on Turbo Iteration in OFDM Systems. , 2007, 29(1): 152-156 .
2007, Vol. 29 
