摘要
提出了一种基于多码分组CDMA的HFC网络上行信道ALOHA多址接入方式。介绍了这种多址接入方式的接入模型、实现方法及系统的组成,分析了ALOHA-CDMA信道的吞吐量,还分析了这种接入方式的特点、存在问题及解决方法。仿真结果表明该方案可改善HFC网络上行信道的吞吐性能和信道利用率。
An ALOHA multi-address method of upstream channel in HFC network is proposed based on multiple code CDMA. The accessing model, implementation method and system composition are introduced. And then, the throughput analysis of the proposed scheme are described. The characteristics, existing problems and solutions of the new scheme are also discussed. Finally, the simulation results show that the proposed scheme can improve the throughput and channel utilance of the upstream channel in HFC network.
出处
《电视技术》
北大核心
2008年第3期59-61,63,共4页
Video Engineering
基金
教育部重点实验室基金项目(NS206005)
江苏省重点实验室开放基金项目(JK20050304)
