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首页> 外文会议>2016 International Conference on Advances in Electrical, Electronic and System Engineering >Time dependent indoor power line background noise: Analysis, simulation and effect on communication system: Study of indoor power line noise environment
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Time dependent indoor power line background noise: Analysis, simulation and effect on communication system: Study of indoor power line noise environment

机译：时间相关的室内电力线背景噪声：分析，仿真和对通信系统的影响：室内电力线噪声环境的研究

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摘要

Power lines are characterized by high, unpredictable and time variant noise. The latter are summation of background noise, impulsive noise and narrowband interferences. The background noise is usually taken to be constant in simulation of power line channels due to its slow change. In this paper, the time dependency of power line background noise in an indoor power line setting and its effect on channel capacity and efficiency of transceivers are studied. It is seen that the average channel capacity at night time is 22.4% and 2% more than that of day time for narrowband and broadband transmission respectively. The comparatively high noise in day time increases the Bit Error Rate of Orthogonal Frequency Division Multiplexing transceivers up-to 29% of the night value. This time dependency of background noise therefore cannot be neglected and has to be considered in implementation of successful power line communication systems. A background channel simulator following the statistics is proposed.
机译：电力线的特征是高，不可预测和随时间变化的噪声。后者是背景噪声，脉冲噪声和窄带干扰的总和。由于电源线通道变化缓慢，因此通常在模拟电源线通道时将其视为恒定。本文研究了室内电力线环境中电力线背景噪声的时间依赖性及其对收发器通道容量和效率的影响。可以看出，窄带和宽带传输的夜间平均信道容量分别比白天大22.4％和2％。白天相对较高的噪声将正交频分复用收发器的误码率提高到夜间值的29％。因此，背景噪声的这种时间依赖性是不能忽略的，必须在成功的电力线通信系统的实现中加以考虑。提出了一种遵循统计数据的后台通道模拟器。

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