移动电视标准DVB-SH与3G的融合构想  

Conception of coupling 3G with DVB-SH networks

作　　者：连飞[1] 门爱东[2] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876 [2]北京邮电大学,北京100876

出　　处：《软件》2011年第10期84-85,89,共3页Software

摘　　要：下一代网络将融合各种技术并取其精华,近期的研究围绕着高网络容量的DVB网络,试图将其与其它网络融合。本文研究DVB-SH,提出了将其与3G蜂窝网融合的构想,以得到双向交互信道,提供交互式的低廉业务。DVB-SH具有很高的带宽容量,允许单向的IP-TV信道广播。DVB-SH信道的剩余带宽仍然可用,原因在于其服务流的可变比特率和3G运营商的一些DVB预留信道。本文着眼于这一小部分的预留带宽及其潜在用途,实现了IP数据从3G网络到DVB网络预留带宽的有效切换。Next generation networks will result from the convergence of the different existing technologies, taking benefit from their complementary properties. Recent research has addressed Digital Video Broadcast（DVB） networks, which benefit of very high broadcast capacities, and has tried to couple them with complementary networks. In our work, we focus on DVB-SH, and propose the conception of coupling DVB-SH with a 3G cellular network, thus providing a bidirectional interactivity path and providing interactive low cost services. DVB-SH benefits from a very high bandwidth capacity that allows unidirectional IP-TV channels broadcast. A residual bandwidth in the DVB-SH path may still be available because of two reasons： the variable bitrates of served flows and some DVB reserved channels by the 3G provider. In our work, we focus on this small residual bandwidth and its potential utilization. The idea is to realize an efficient switching of IP data, coming from 3G networks, to the residual bandwidth of DVB Networks.

关 键 词：通信技术 网络融合 DVB—SH 3G 剩余带宽 切换 

分 类 号：TN938[电子电信—信号与信息处理]