【摘要】 本文首先说明光纤／同轴电缆混合（HFC）有线电视网络在宽带综合信息网络和信息高速公路发展中的重要地位，同时指出同轴电缆网络双向通信问题是HFC宽带接入网的核心问题之一。接着提出了一个用户业务模型假设，讨论了同轴电缆网信道的动态分配问题。最后，对CSMA／CD作为用户接入机制和实现信道动态分配手段的性能进行了计算机模拟分析。更多还原

【Abstract】 In this paper, the important role of HFC CATV networks in the development of broadband integrated informatlon network and Information highway is pointed out, and the bidirectional communlcation capability as one of the key problems of HFC access network is brought out. One subscriber traffic model and dynamic channel allocation policy in coaxial networks is discussed. The simulation results of CSMA/CD deployed as the method of subscriber access and dynamic channel allocation are presented.更多还原