Abstract
Power line communication(PLC)has the potential to become the preferred technique for provi-ding broadband communication to homes and offices with advantage of eliminating the need for new wiring infrastructure and reducing the cost.But it suffers from the impulsive noise because it intro-duces significant time variance into the power line channel.In this paper,a polar codes based or-thogonal frequency division multiplexing(OFDM)PLC system is proposed to deal with the impulsive noise and thereby improve the transmission performance.Firstly,the impulsive noise is modelled with a multi-damped sine function by analyzing the time behavior of impulse events.Then the polar codes are used to combat the impulsive noise of PLC channel,and a low complexity bit-flipping de-coding method based on CRC-aided successive cancellation list(CA-SCL)decoding algorithm is pro-posed.Simulations evaluate the proposed decoding algorithm and the results validate the suggested polar codes based OFDM-PLC scheme which can improve the BER performance of PLC with impul-sive interference.
基金项目
Headquarters Technology Project of State Grid Corporation of China(5700-202118203A-0-0-00)
国家科技期刊平台
NSTL
万方数据