SDI over IP是一种将SDI信号进行IP化封装和传输,适用于广电制播传输领域的技术。本文介绍了SMPTE组织所提出的SDI over IP相关技术标准,然后基于传统的SDI实时制作系统架构,提出一个SDI与IP技术架构相融合的实时制作系统模型方案,并通...SDI over IP是一种将SDI信号进行IP化封装和传输,适用于广电制播传输领域的技术。本文介绍了SMPTE组织所提出的SDI over IP相关技术标准,然后基于传统的SDI实时制作系统架构,提出一个SDI与IP技术架构相融合的实时制作系统模型方案,并通过分析搭建一个可实际工作IP实时制作系统的技术需求,来进一步描述SDI over IP技术如何在电视台实时制作系统中的应用。展开更多
演播室/转播车采用SMPTE 2110标准架构实现4K IP化制作已相对成熟。但在前4K时代,受到节目源格式及频道整体播出格式的制约,4K演播室设计既要满足高清(HD)制作又要考虑按需完成超高清(4K)制作。本文介绍了为论证SMTPE ST 2110标准实现HD...演播室/转播车采用SMPTE 2110标准架构实现4K IP化制作已相对成熟。但在前4K时代,受到节目源格式及频道整体播出格式的制约,4K演播室设计既要满足高清(HD)制作又要考虑按需完成超高清(4K)制作。本文介绍了为论证SMTPE ST 2110标准实现HD/4K IP架构时可根据业务需求进行制播转换的目的而搭建的测试系统,针对参与此次测试的主要设备及系统架构、安全策略、业务实现等进行介绍。展开更多
The information centric network(ICN)has been widely discussed in current researches.The ICN interoperation with a traditional IP network and caching methods are one of the research topics of interest.For economic reas...The information centric network(ICN)has been widely discussed in current researches.The ICN interoperation with a traditional IP network and caching methods are one of the research topics of interest.For economic reasons,the capability of applying the ICN to internet service providers(ISPs)with various traditional IP protocols already implemented,especially IGP,MPLS,VRF,and TE,does not require any change on the IP network infrastructure.The biggest concern of ISPs is related to their customers’contents delivery speed.In this paper,we consider ICN caching locations in ISP by using the concept of locator/ID separation protocol(LISP)for interoperation between a traditional IP address and name-based ICN.To be more specific,we propose a new procedure to determine caching locations in the ICN by using the cuckoo search algorithm(CSA)for finding the best caching locations of information chunks.Moreover,we create the smart control plane(SCP)scheme which is an intelligent controlling,managing,and mapping system.Its function is similar to the software defined network concept.We show how the proposed SCP system works in both synthetic small network and real-world big network.Finally,we show and evaluate the performance of our algorithm comparison with the simple search method using the shortest path first algorithm.展开更多
文摘SDI over IP是一种将SDI信号进行IP化封装和传输,适用于广电制播传输领域的技术。本文介绍了SMPTE组织所提出的SDI over IP相关技术标准,然后基于传统的SDI实时制作系统架构,提出一个SDI与IP技术架构相融合的实时制作系统模型方案,并通过分析搭建一个可实际工作IP实时制作系统的技术需求,来进一步描述SDI over IP技术如何在电视台实时制作系统中的应用。
文摘The information centric network(ICN)has been widely discussed in current researches.The ICN interoperation with a traditional IP network and caching methods are one of the research topics of interest.For economic reasons,the capability of applying the ICN to internet service providers(ISPs)with various traditional IP protocols already implemented,especially IGP,MPLS,VRF,and TE,does not require any change on the IP network infrastructure.The biggest concern of ISPs is related to their customers’contents delivery speed.In this paper,we consider ICN caching locations in ISP by using the concept of locator/ID separation protocol(LISP)for interoperation between a traditional IP address and name-based ICN.To be more specific,we propose a new procedure to determine caching locations in the ICN by using the cuckoo search algorithm(CSA)for finding the best caching locations of information chunks.Moreover,we create the smart control plane(SCP)scheme which is an intelligent controlling,managing,and mapping system.Its function is similar to the software defined network concept.We show how the proposed SCP system works in both synthetic small network and real-world big network.Finally,we show and evaluate the performance of our algorithm comparison with the simple search method using the shortest path first algorithm.
