首页|Polar codes based OFDM-PLC systems in the presence of impulsive noise
Polar codes based OFDM-PLC systems in the presence of impulsive noise
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国家科技期刊平台
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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.
orthogonal frequency division multiplexing(OFDM)polar codeimpulsive noisepower line communication(PLC)bit-flipping