电力信息与通信技术2025，Vol.23Issue(8)：18-23,6.DOI:10.16543/j.2095-641x.electric.power.ict.2025.08.03
OFDM-IM在电力线信道下的性能分析
Performance Analysis of OFDM-IM in Power Line Channels
摘要
Abstract
The power line channel is a very strict cable channel,which not only has time variation and frequency selectivity,but also has a large amount of background noise and impulse noise,which seriously affects the transmission quality of the signal.In order to construct a smart grid and resist the influence of power line channels,orthogonal frequency division multiplexing with index modulation(OFDM-IM)with excellent bit error performance is applied to power line communication,and the carrier with large channel gain is selected for index modulation to improve the transmission quality of the signal under the power line channel.Firstly,the multipath modeling of the power line transmission channel is carried out,and the Bernoulli-Gaussian process modeling is carried out on the impulse noise.Then,the modulation and demodulation scheme of OFDM-IM is introduced in detail,and the bit error performance of the scheme in the power line channel is studied,and finally the bit error performance is compared with the traditional OFDM scheme in the power line channel.Experimental results show that OFDM-IM has better bit error performance than OFDM in power line channel.关键词
OFDM-IM/电力线通信/误比特率/多径传输/索引调制Key words
OFDM-IM/PLC/bit error rate/mutlipath transmission/index modulation分类
信息技术与安全科学引用本文复制引用
陈芳,郑力嘉,高勇华,程桂仙,代洲..OFDM-IM在电力线信道下的性能分析[J].电力信息与通信技术,2025,23(8):18-23,6.基金项目
南方电网公司科技项目资助(031300KC23070005) （031300KC23070005）
国家自然科学基金项目(62361012) （62361012）
贵州省高等学校创新团队(黔教技[2023]064号). （黔教技[2023]064号）
