Soft Input Channel Estimation for Two-Way Cooperative-OFDM

摘要：

We consider the channel estimation for two-way relay OFDM networks. Aiming at time-varying characteristic of doubly-selective channels, we proposed an soft input Kalman channel estimator. To take advantage of soft information provided by the decoder, we combine this the Kalman filter with Turbo equalizer, so we neednt many pilot symbols in practice, still can ensure the algorithm performance and reduce the time delay and complexity of this algorithm, and apply it to the basis expansion channel model (BECM), changing the variable channel parameters in the period of one OFDM symbol into invariable ones.

关键词： cooperative-OFDM channel estimation soft input two-way relay doubly-selective

作者: Wei Wu Xin Jia Yueming Cai Huachao Hu

作者单位: Academy of Equipment Command & Technology, Beijing, 101416, China PLA University of Science and Technology, Nanjing 210007, China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）