针对中小型园区网视频点皤VOD(Video on Demand)应用中因网络带宽及点播服务器I/O带宽不足导致的系统阻塞问题,提出一种新型网络设备——流媒体流量均衡设备。该设备基于MIPS处理器,操作系统采用Linux,具有成本低廉、功耗低、易于安装...针对中小型园区网视频点皤VOD(Video on Demand)应用中因网络带宽及点播服务器I/O带宽不足导致的系统阻塞问题,提出一种新型网络设备——流媒体流量均衡设备。该设备基于MIPS处理器,操作系统采用Linux,具有成本低廉、功耗低、易于安装部署等优点,基于该设备的VOD方案实用性强、性价比高、可伸缩性好。试运行证明该设备的使用效果良好,具有较高的经济可行性,可广泛应用于中小型园区网VOD系统的建设与改造。展开更多
One of the significant tasks when designing a VoD(Video-on-Demand) system is to support as many simul-taneous streams as possible. Obviously, it is closely related to the storage subsystem. In this paper, we compare t...One of the significant tasks when designing a VoD(Video-on-Demand) system is to support as many simul-taneous streams as possible. Obviously, it is closely related to the storage subsystem. In this paper, we compare theperformance of the storage subsystems based on two different designs by simulation, one data placement policy is us-ing the technique of striping, and the other is simply placing a whole video only in one server. We find that, when da-ta is CBR (Constant-Bit-Rate) coded, the numbers of simultaneous streams respectively supported by the twoschemes are equal, but the latter can present better service.展开更多
VOD(Video on Demand)是近年来新兴的一种传媒方式,由于多媒体数据量大,系统会积累大量的多媒体数据,VOD的数据库管理系统必须保证用户能迅速方便地找到所需的素材,有效地完成对素材的各种管理任务。VOD系统的结构设计直接影响着传输的...VOD(Video on Demand)是近年来新兴的一种传媒方式,由于多媒体数据量大,系统会积累大量的多媒体数据,VOD的数据库管理系统必须保证用户能迅速方便地找到所需的素材,有效地完成对素材的各种管理任务。VOD系统的结构设计直接影响着传输的性能,必须采优化结构,数字图书馆技术就是典型的优化结构。展开更多
文摘针对中小型园区网视频点皤VOD(Video on Demand)应用中因网络带宽及点播服务器I/O带宽不足导致的系统阻塞问题,提出一种新型网络设备——流媒体流量均衡设备。该设备基于MIPS处理器,操作系统采用Linux,具有成本低廉、功耗低、易于安装部署等优点,基于该设备的VOD方案实用性强、性价比高、可伸缩性好。试运行证明该设备的使用效果良好,具有较高的经济可行性,可广泛应用于中小型园区网VOD系统的建设与改造。
文摘One of the significant tasks when designing a VoD(Video-on-Demand) system is to support as many simul-taneous streams as possible. Obviously, it is closely related to the storage subsystem. In this paper, we compare theperformance of the storage subsystems based on two different designs by simulation, one data placement policy is us-ing the technique of striping, and the other is simply placing a whole video only in one server. We find that, when da-ta is CBR (Constant-Bit-Rate) coded, the numbers of simultaneous streams respectively supported by the twoschemes are equal, but the latter can present better service.
文摘VOD(Video on Demand)是近年来新兴的一种传媒方式,由于多媒体数据量大,系统会积累大量的多媒体数据,VOD的数据库管理系统必须保证用户能迅速方便地找到所需的素材,有效地完成对素材的各种管理任务。VOD系统的结构设计直接影响着传输的性能,必须采优化结构,数字图书馆技术就是典型的优化结构。
