| DOCSIS2.0协议的上行物理层技术 |
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| 引用本文： | 曾清海.DOCSIS2.0协议的上行物理层技术[J].电视技术,2004(1):42-43,49. |
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| 作者姓名： | 曾清海 |
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| 作者单位： | 中兴通讯股份有限公司,上海第二研究所,上海,200233 |
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| 摘 要： | 阐述了对DOCSIS2.0的上行物理层技术规范及其新特点.它是在DOCSIS1.1的基础上增强协议物理层性能的新规范,增加了光纤同轴电缆混合(HFC)网系统的信道容量,提高了抗干扰能力;采用S-CDMA模式的上行物理层技术规范是DOCSIS2.0的新特点,也是理解和应用该协议的关键.
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| 关 键 词： | 电缆数据服务接口规范 同步码分多址 网格编码调制 |
| 文章编号： | 1002-8692(2004)01-0042-02 |
Upstream Physical Layer Technologies of DOCSIS2.0 Protocol |
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| ZENG Qing-hai.Upstream Physical Layer Technologies of DOCSIS2.0 Protocol[J].Tv Engineering,2004(1):42-43,49. |
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| Authors: | ZENG Qing-hai |
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| Abstract: | The technical specification of upstream physical la ye r of DOCSIS2.0and its new features are described.It is a new specification b ased on DOCSIS1.1for enhancing the protocol's physical layer performance.It increases channel capacity and improves interference immunity for HFC system.Th e upstream physical layer technologies specification using S-CDMA mode is a new feature of DOCSIS2.0,and is the key point for understanding and deploying t he protocol. |
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| Keywords: | Data Over Cable Service Interface Specifications(DOCS IS) Synchronous Code Division Multiple Access(S-CD-MA) Trellis Coded Modu lation(TCM) |
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