| 欧洲的宽带电力线通信接入系统 |
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| 引用本文： | 雨田. 欧洲的宽带电力线通信接入系统[J]. 世界电信, 2003, 16(7): 5-8 |
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| 作者姓名： | 雨田 |
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| 作者单位： | 信息产业部电信研究院教授级高级工程师 |
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| 摘 要： | 分别从网络体系结构与系统组成、安全性与私密性、传输距离与覆盖范围、小区间干扰、信号耦合方式与安装几方面介绍了欧洲宽带电力线通信(PLC)接入系统的一个实例。现场试验表明．PLC系统室外部分使用低频段、室内部分使用高频段可解决通路损耗与电磁兼容性问题；时分多址和时分双工将成为比较好的候选技术；在无中继器情况下，最大室外传输距离可达250—300m；保证相邻PLC系统之间上行时隙和下行时隙的同步能解决邻室PLC系统间的干扰问题；选择适当的信号耦合方式对获得良好覆盖十分重要。
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| 关 键 词： | 宽带电力线通信 接入系统 信号耦合 小区间干扰 安全性 体系结构 |
Access Systems in European Broadband Power Line Communications |
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| Yu Tian Professor Senior Engineer,CATR of MII. Access Systems in European Broadband Power Line Communications[J]. World Telecommunications, 2003, 16(7): 5-8 |
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| Authors: | Yu Tian Professor Senior Engineer CATR of MII |
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| Abstract: | The European broadband power line com-mu ni c a tions(PLC)access systems exemplifies the network sys tem architecture,syst em components,se cu rity,pri vacy and confidentiality,transmission span and c ov erage,inter-cell interference,sig-nalling cou pling,and in stallation. Field trial sug-gests that the pro pogation loss and EMC issue can be re solved by the utiliza tion of high fre quency band in in-door systems and low fre q uency band in out-door sys tems.TDMA and TDD technologies are best op tions.T he maximum repeaterless trans-mis sion dis tance can reach up to250-300m e-ters.The syn chronization of up link and downlink time slots in adjacent PLC sys tems is a way to solve jamming.Appropriate signaling coupling ap-proa ches are im portant to coverage. |
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| Keywords: | terms :Power line communications Ac c ess systems Broadband |
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