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首页> 外文期刊>ETRI journal >System-Level Performance of Spread Spectrum-Based Add-on Service Overlaid onto the Existing Terrestrial Digital Multimedia Broadcast Band
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System-Level Performance of Spread Spectrum-Based Add-on Service Overlaid onto the Existing Terrestrial Digital Multimedia Broadcast Band

机译：现有地面数字多媒体广播频段上覆盖的基于扩频的附加服务的系统级性能

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摘要

We consider an overlaid broadcast service, where a spread spectrum (SS)-based broadcast signal is overlaid onto the existing terrestrial Digital Multimedia Broadcasting (T-DMB) band. The system is similar to the augmented data transmission in the ATSC DTV, for which it was investigated mostly in terms of link level performance, such as bit error rate. Our focus in this paper is on the system-level performances. More specifically, utilizing both a large scale path loss and a small scale fading channel model, the primary objective is to explore the tradeoff between the coverage and the achievable rate of the overlaid service and, finally, to determine the achievable rate hi the overlaid service for marginal coverage reduction hi the existing broadcast service. The analytical and simulation results show that an SS-based add-on service of 10 kbps to 20 kbps can co-exist with the T-DMB service while resulting hi only a marginal degradation in T-DMB coverage (for example, less than one percent reduction).
机译：我们考虑了一种覆盖广播服务，其中基于扩频（SS）的广播信号被覆盖到现有的地面数字多媒体广播（T-DMB）频段上。该系统类似于ATSC DTV中的增强数据传输，对此系统主要在链接级性能（例如误码率）方面进行了研究。我们在本文中的重点是系统级性能。更具体地说，利用大规模路径损耗和小规模衰落信道模型，主要目的是探索覆盖范围和可覆盖服务的可实现速率之间的折衷，最后确定可覆盖服务的可实现速率现有广播服务的边缘覆盖减少。分析和模拟结果表明，基于SS的10 kbps到20 kbps的附加服务可以与T-DMB服务共存，而仅会导致T-DMB覆盖范围的边际降低（例如，小于1减少百分比）。

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  • 来源
    《ETRI journal》 |2012年第4期|p.492-502|共11页
  • 作者

    Seokhyun Yoon; Bo-mi Lim; Yong Tae Lee;

  • 作者单位

    Department of Electronics Engineering, Dankook University, Yongin, Gyeonggi-do, Rep. of Korea;

    Broadcasting & Telecommunications Convergence Research Laboratory, ETRL Daejeon, Rep.of Korea;

    Broadcasting & Telecommunications Convergence Research Laboratory, ETRL Daejeon, Rep.of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    digital multimedia broadcast (DMB); service overlay; spread spectrum;

    机译：数字多媒体广播（DMB）;服务覆盖;扩频;

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