An improved least square channel estimation algorithm for coherent optical OFDM system

作者：Zhang S; Bai C L^*; Luo Q L; Huang L; He F F

来源：Optik, 2013, 124(23): 5937-5940.

DOI：10.1016/j.ijleo.2013.04.125

• Coherent optical OFDM
• Channel estimation
• Least square

This paper presents an improved processing added to conventional least square (LS) channel estimation to modify its performance for coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. By testing selected limitation factors of the existing algorithms, the influence of our improved algorithm to the performance of CO-OFDM system were studied and compared with other published algorithms. The simulation results of the study demonstrated that the proposed approaches achieved better channel estimation performance and are considered as a more appropriate alternative for CO-OFDM system with the tradeoff between complexity and performance.

• 出版日期2013
• 单位聊城大学