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Future Terrestrial Broadcast Systems: An Overview of the Use of TV White Spaces

机译:未来的地面广播系统:电视空白空间的使用概述

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摘要

Due to THE growing demand for high data rates, wireless communication systems require more and more terrestrial frequency resources. Usable frequencies, however, are typically fully allocated to all kinds of wireless technology. One possible solution to meet the increasing data traffic demands is to build smaller radio cells to reuse spectrum more efficiently. However, the associated costs for new infrastructure and increased energy consumption make this option economically unviable. Therefore, efforts are being made to make use of locally vacant spectrum that is primarily licensed to other wireless systems?on a license-exempt or secondary license basis. Locally underutilized spectrum can be found in many frequency ranges (e.g., in military, aeronautical, and TV spectrum or in frequency bands allocated to historic communication systems) and is usually referred to as spectrum holes or white spaces [1]. Before these frequency resources are allowed to be exploited by secondary users, regulators must ensure that primary users will not be negatively affected by additional interference.
机译:由于对高数据速率的日益增长的需求,无线通信系统需要越来越多的地面频率资源。但是,可用频率通常会完全分配给所有种类的无线技术。满足日益增长的数据流量需求的一种可能解决方案是构建更小的无线电小区,以更有效地重用频谱。但是,新基础设施的相关成本和能源消耗的增加使得该选择在经济上不可行。因此,人们正在努力在免许可或二级许可的基础上利用主要许可给其他无线系统的本地空闲频谱。可以在许多频率范围内(例如,在军事,航空和电视频谱中,或者在分配给历史通信系统的频带中)发现本地未充分利用的频谱,通常称为频谱空洞或空白[1]。在允许次要用户利用这些频率资源之前,监管机构必须确保主要用户不会受到其他干扰的负面影响。

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  • 来源
    《Consumer Electronics Magazine, IEEE》 |2013年第3期|17-24|共8页
  • 作者

    Palka; P.;

  • 作者单位

    Inst. fur Nachrichtentechnik, Tech. Univ. Braunschweig, Braunschweig, Germany|c|;

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  • 正文语种 eng
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