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首页> 外文会议>2010 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB 2010) >The novel approach to support multimedia services over DTMB system
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The novel approach to support multimedia services over DTMB system

机译：在DTMB系统上支持多媒体服务的新颖方法

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摘要

Digital Television/Terrestrial Multimedia Broadcasting (DTMB) is announced as the Chinese Digital Television Terrestrial Broadcasting (DTTB) standard. In the conventional applications, all the transport streams (TS) from various programs are multiplexed in the level of TS packets. Therefore, all the programs should take the same interleaving, constellation mapping and channel coding, and hence the same quality of service (QoS). Moreover, due to the impact of convolutional interleaver, the receiver needs to be turned on all the time to obtain the designated data on the received signal. In this paper, the concept of physical sub-channel (PSC) for DTMB system is introduced and the method to support services with different QoS is addressed. Based on the two techniques, a novel approach to support multimedia services over DTMB system with the existing receivers untouched is proposed and evaluated by computer simulation.
机译：数字电视/地面多媒体广播（DTMB）被宣布为中国数字电视地面广播（DTTB）标准。在常规应用中，来自各种程序的所有传输流（TS）被多路复用到TS分组的级别中。因此，所有程序都应采用相同的交织，星座映射和信道编码，并因此采用相同的服务质量（QoS）。而且，由于卷积交织器的影响，需要一直打开接收机以获取关于接收信号的指定数据。本文介绍了DTMB系统的物理子信道（PSC）的概念，并提出了支持不同QoS服务的方法。基于这两种技术，提出了一种在不影响现有接收机的情况下通过DTMB系统支持多媒体服务的新方法，并通过计算机仿真对其进行了评估。

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