A Novel Channel Estimation Algorithm in OFDM Power Line Communication System

摘要：

An OFDM Low-Voltage PLC system is presented in this paper, and time-domain spread structure is proposed in this system, which can improve the reliability of pilots in receiver. To suppress the noise and attenuation of Power Line channel, a novel ? channel estimation algorithm is proposed. The proposed algorithm makes full use of information of all pilots in one OFDM symbol, and it has an advantage on complexity over LMMSE. Simulation results indicate that the proposed channel estimation algorithm performs better than LMMSE estimator, especially when Signal-to-Noise Ratio (SNR) is below OdB.

关键词： OFDM PLC Channel Estimation Time-domain Spread

作者: Huidong Zhao Yong Hei Shushan Qiao

作者单位: Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China

会议类型: 国际会议

会议名称: 2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)

会议地点: 厦门

会议语种:英文

页码: 772-775

在线出版日期: 2011-10-25（万方平台首次上网日期，不代表论文的发表时间）