互动电视业务数据源部署及频点管理和分配方法研究  

On Methods for Data Sources Deployment of Interactive Television Services and the Management and Allocation of Frequency

作　　者：鞠照明[1,2] 王玲芳[2] 刘磊[2] 

机构地区：[1]中国科学院声学研究所 国家网络新媒体工程技术研究中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《网络新媒体技术》2013年第1期52-57,共6页Network New Media Technology

基　　金：863课题:融合网络业务体系的开发;(编号:2011AA01A102);国家自然科学基金"互联网环境下有限区域范围的视频服务提供问题研究";(编号:60972082);中国科学院战略性先导科技专项子课题:未来网络架构研究与边缘设备研制;(编号:XDA06010302)

摘　　要：传统互动电视业务数据源与IPQAM连接方式通常会带来业务数据流较大日寸延、抖动,以及诸多网络安全问题,为了缓解上述问题,本文提出了一种业务数据源与IPQAM直连部署方法。存此部署方法基础上提出一种频点管理和分配算法。仿真实验表明,该管理、分配方法能够很好地兼容本文提出的业务数据源部署方式和传统业务数据源部署方式,并存限制最大服务拒绝率情况下,可提供较高频点带宽利用率。Traditional connection style between interactive television services＇ data sources and IPQAM usually brings greater delay, jitter, and many network security problems for service data flow. In order to alleviate the above problems, we propose a method for de- ployment of services dada sources. Based on this deployment method, we also propose a method for frequency management. In addi- tion, we propose an algorithm for frequency allocation by combining Non - mixing and least - load algorithm. Simulation resuks show that this management and allocation method can be well compatible with both this deployment of data sources and traditional deployment of data sources, and provide high frequency bandwidth utilization under limited maximum refusal rate.

关 键 词：业务数据源 IPQAM 频点管理 频点分配 

分 类 号：TN949.2[电子电信—信号与信息处理]