分析了实现移动多媒体广播的几种方案,并提出一种基于混合网络、同时支持下载业务的移动多媒体广播业务实现方案.本方案通过移动网络实现业务管理,采用分层密钥管理体系提高系统安全性,同时引入DRM(digital right management)模块,支持...分析了实现移动多媒体广播的几种方案,并提出一种基于混合网络、同时支持下载业务的移动多媒体广播业务实现方案.本方案通过移动网络实现业务管理,采用分层密钥管理体系提高系统安全性,同时引入DRM(digital right management)模块,支持节目片段下载的业务.该方案对于实现移动多媒体广播业务的运营管理以及与下载业务的融合有着重要的意义和应用价值.展开更多
The 3GPP multimedia broadcast/multicast services(MBMS) standard takes Raptor codes as a way of channel coding and puts forward an efcient enhanced Gaussian elimination(EGE) for the Raptor decoder. However, the standar...The 3GPP multimedia broadcast/multicast services(MBMS) standard takes Raptor codes as a way of channel coding and puts forward an efcient enhanced Gaussian elimination(EGE) for the Raptor decoder. However, the standard decoding method is not the most efcient. A few of researchers made some changes based on the standard decoding method and achieved considerable performance. In this paper, a synthetic decoding method is presented according to the existing enhanced decoding method and the simulation shows that the syn- thetic way outperforms any other ways.展开更多
文摘分析了实现移动多媒体广播的几种方案,并提出一种基于混合网络、同时支持下载业务的移动多媒体广播业务实现方案.本方案通过移动网络实现业务管理,采用分层密钥管理体系提高系统安全性,同时引入DRM(digital right management)模块,支持节目片段下载的业务.该方案对于实现移动多媒体广播业务的运营管理以及与下载业务的融合有着重要的意义和应用价值.
文摘The 3GPP multimedia broadcast/multicast services(MBMS) standard takes Raptor codes as a way of channel coding and puts forward an efcient enhanced Gaussian elimination(EGE) for the Raptor decoder. However, the standard decoding method is not the most efcient. A few of researchers made some changes based on the standard decoding method and achieved considerable performance. In this paper, a synthetic decoding method is presented according to the existing enhanced decoding method and the simulation shows that the syn- thetic way outperforms any other ways.
