Channel Estimation for SCM-OFDM Systems by Modified Kalman Filter

• 作者: Eric Pierre Simon Huaqiang Shu Shaoqian Li Tao Peng Yue Xiao
• 来源期刊: 通讯与网络(英文)
• 学科: 工学
• 关键词: SUPERPOSITION CODED Modulation (SCM) Orthogonal Frequency Division MULTIPLEXING (OFDM) Channel Estimation Kalman Filter
• 年，卷（期）: txywlyw_2013,（3）
• 页码范围: 666-670
• 页数: 5页
• 分类号: TN91

摘要

In this paper, the problem of channel estimation for superposition coded modulation-orthogonal frequency division multiplexing (SCM-OFDM) systems over frequency selective channels is investigated. Assuming that the path delays are known, a new channel estimator based on modified Kalman filter algorithms is introduced for the estimation of the multipath Rayleigh channel complex gains (CG). In the simulation, the mean square error (MSE) and bit-error-rate (BER) performances are given to verify the effectiveness of the Kalman estimation algorithms for SCM-OFDM systems.