首页> 外文会议>Broadband Multimedia Systems and Broadcasting, 2009. BMSB '09 >Mobile reception of DVB-T services by means of AL-FEC protection
【24h】

Mobile reception of DVB-T services by means of AL-FEC protection

机译:通过AL-FEC保护以移动方式接收DVB-T服务

获取原文

摘要

This paper proposes and investigates the use of Application Layer Forward Error Correction (AL-FEC) based on Raptor codes for digital television DVB-T (Digital Video Broadcasting - Terrestrial) services. By means of AL-FEC it is possible to increase the robustness of traditional DVB-T transmissions for the provision of mobile TV. The AL-FEC protection is introduced in a backwards compatible way with the legacy DVB-T standard and does not alter the originally transmitted multimedia data. In order to evaluate the performance of AL-FEC in mobile channel environments, we employ laboratory measurements along with dynamic shadowing simulations. The paper presents direct comparisons with the link layer protection mechanism of DVB-H - referred to as MPE-FEC (Multi Protocol Encapsulation - Forward Error Correction) - and illustrates the link margin gains that can be achieved in mobile DVB-T reception by means of AL-FEC.
机译:本文提出并研究了基于猛禽码的应用层前向纠错(AL-FEC)在数字电视DVB-T(地面数字视频广播)服务中的使用。通过AL-FEC,可以提高传统DVB-T传输的健壮性,以提供移动电视。 AL-FEC保护是以与旧版DVB-T标准向后兼容的方式引入的,并且不会更改原始传输的多媒体数据。为了评估AL-FEC在移动信道环境中的性能,我们采用了实验室测量以及动态阴影模拟。本文提出了与DVB-H的链路层保护机制(称为MPE-FEC(多协议封装-前向纠错))的直接比较,并说明了通过以下方式可以在移动DVB-T接收中实现的链路余量增益: AL-FEC。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号