| HFC网络CDMA时隙ALOHA接入系统性能分析 |
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| 引用本文： | 谢磊,陈惠芳,仇佩亮.HFC网络CDMA时隙ALOHA接入系统性能分析[J].电路与系统学报,2000,5(3):6-11. |
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| 作者姓名： | 谢磊 陈惠芳 仇佩亮 |
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| 作者单位： | 浙江大学,信息科学与电子工程系,浙江,杭州,310027 |
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| 摘 要： | 同步ＣＤＭＡ（Ｓ－ＣＤＭＡ）解决了双向ＨＦＣ系统上行信道的噪声和容量问题，基于Ｓ－ＣＤＭＡ的ＨＦＣ是一代的ＨＦＣ系统，初始接入ＣＤＭＡ终端是采用时隙ＡＬＯＨＡ技术完成接入进程的，把ＣＤＭＡ技术与时隙ＡＬＯＨＡ技术相结合，会使原来的时隙ＡＬＯＨＡ技术的吞吐量得到一定的改善。本文提出了一种ＨＦＣ网络ＣＤＭＡ－时隙ＡＬＯＨＡ接入系统，分析了该系统的吞吐量性能和接入时延性能，并给出了实验结果与分析。
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| 关 键 词： | HFC网络 CDMA ALOHA 有线电视网 |
| 文章编号： | 1007-0249(2000)03-0006-06 |
Performance Analysis of the CDMA-Slotted-ALOHA Access System for the HFC Network |
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| XIE Lei,CHEN Hui-fang,QIU Pei-liang.Performance Analysis of the CDMA-Slotted-ALOHA Access System for the HFC Network[J].Journal of Circuits and Systems,2000,5(3):6-11. |
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| Authors: | XIE Lei CHEN Hui-fang QIU Pei-liang |
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| Abstract: | Synchronous CDMA (S-CDMA) solves the problem of noise and capacity of the upstream channel in HFC systems. The S-CDMA based HFC is a new generation of HFC system. In early time, CDMA terminals are connected to the system by slotted-ALOHA process. The throughput of the traditional slotted-ALOHA scheme can be improved using the combination of CDMA technique and the slotted-ALOHA scheme. In this paper, a C DMA - slotted- ALOHA aceess approach for the HFC network is proposed. The throughput and the access delay are analyzed, finally the experimental results and conclusion are given. |
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| Keywords: | HFC Network synchronous CDMA the CDMA- Slotted- ALOHA Access System |
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