重庆邮电大学学报（自然科学版）2019，Vol.31Issue(1)：44-49,6.DOI:10.3979/j.issn.1673-825X.2019.01.006
一种抗脉冲噪声的宽带电力线通信系统信道估计算法
A channel estimation algorithm for impulse noise suppression in WB-PLC system
摘要
Abstract
Channel estimation in OFDM-based wide band power line communication (WB-PLC) system is severely impacted by impulse noise. In order to solve this problem, a method to determine the position of impulse noise is firstly proposed and then"null"processing is carried out. Although the time domain nonlinear processing eliminates the impact of impulse noise, it causes the inter carrier interference (ICI) and results in the loss of channel estimation performance. Therefore, a channel estimation algorithm using preamble in PLC system to eliminate the ICI iteratively is designed. Simulation results show that furtherly considering the influence of ICI on channel estimation, the proposed algorithm significantly improves the accuracy of channel estimation under the impulse noise environment and correspondingly improves the BER performance in PLC system.关键词
宽带电力线通信/脉冲噪声/信道估计/子载波间干扰Key words
wide band power line communication/impulse noise/channel estimation/inter carrier interference分类
信息技术与安全科学引用本文复制引用
郑建宏,邓湛..一种抗脉冲噪声的宽带电力线通信系统信道估计算法[J].重庆邮电大学学报（自然科学版）,2019,31(1):44-49,6.基金项目
国家03重大专项 (2016ZX03002010-003) （2016ZX03002010-003）
