A LMMSE Channel Estimator for Coherent Optical OFDM System
The CO-OFDM is sensitive to noises and dispersion, so the channel estimation becomes a key issue in performance improvements. An effective method based on LMMSE can compensate the losses more accurately than LS. It can bring in 2dB SNR gains compared with LS under the condition of BER= 10-4.
Song Yu Mingying Lan Weilin Li Wanyi Gu JianQuan Yao
College of Precision Instrument and OPO-Electronics Engineering, Tianjin University, Tianjin, 300072 Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing U College of Precision Instrument and OPO-Electronics Engineering, Tianjin University, Tianjin, 300072
国际会议
上海
英文
1-2
2009-11-01(万方平台首次上网日期,不代表论文的发表时间)