摘要
在分析低压配电网通信信道的一般特性的基础上,对应用于高速电力线通信中的两大热点技术——正交频分复用(OFDM)和多载波CDMA(MC-CDMA)的比特误码率(BER)性能进行分析比较。仿真结果表明MC-CDMA技术不仅具有较强的抗干扰能力和极高的频带利用率,有效地避免时延扩展所带来的负作用,还能克服OFDM技术中子载波受深衰落而出错的情况,因此能取得更令人满意的效果。
Based on analyzing the general traits of the low voltage power line communication channel, the BER features both for OFDM and MC-CDMA were analyzed and compared with each other, which were two focusing techniques in the high speed power line communication. The simulation result expatiated that MC-CDMA had not only strong capability of combating interference, the high efficiency of bandwidth and the immunity to delay spread, but also prevented from the error because of the frequency fading deeply. Consequently, a satisfying effect from MC-CDMA was obtained.
出处
《辽宁工业大学学报（自然科学版）》
2008年第1期13-16,共4页
Journal of Liaoning University of Technology(Natural Science Edition)
