CATV网多媒体数据广播系统中控制策略的研究

为了充分利用现有的CATV网络资源，更好地向用户提供信息服务，开发了基于CATV网的多媒体数据广播系统，它能够提供多种信息服务。当多个用户同时请求服务时，可能会出现数据广播通道的拥塞，因此需要对系统进行流量控制和拥塞控制。提出了数据广播系统中突发业务的自学习控制模型，在此基础上，控制器针对不同网络传输状态采取不同的控制策略。

To provide better information service to users through current CATV network, we develop a mul-timedia data broadcasting system based on CATV, which provides various information services. Data broadcast channel may be congested when video service is required by many users, thus the flow ccntrol and congestion control are needed- This paper presents a seif study control model, based on which the controller takes different control strategy on different transmission status of the CATV network.[