Dynamic spectrum access and cognitive radio
Dynamic spectrum access and cognitive radio
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DOI：
10.1109/wirelessvitae.2011.5940911
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
Prabhat Tripathi;A. Chandra;Ambuj Kumar;K. Sridhara
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文献类型：
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作者：
Prabhat Tripathi;A. Chandra;Ambuj Kumar;K. Sridhara
无线电频谱是一种天然的有限资源，不能被人拥有。许多新技术正在出现，需要频谱来实现更快的增长。国际电联预测，到2020年将需要1720 MHz频谱。一些服务正在叩响电信市场的大门，但由于频谱的不可用，这些有前途的服务无法推出。为了满足这一需求，频谱应该动态管理而不是静态管理。认知无线电是未来最好的技术，它将有助于满足日益增长的无线电频谱需求，并有助于以更简单的方式管理无线电资源。动态频谱管理将为认知无线电网络的实现提供有利的环境。本文对现有频谱管理的不足和动态频谱接入进行了综述。
Radio spectrum is natural limited resource, which cannot be owned. Many new technologies are emerging which require spectrum for faster growth. ITU has projected that 1720 MHz spectrum will be required by the year 2020. Several services are knocking the door of telecom market but these promising services cannot be rolled out due to non-availability of spectrum. To meet this demand, spectrum should be managed dynamically instead of static. Cognitive radio is the best future technology, which would help to meet the ever increasing demand of radio spectrum and also help in managing radio resource in more simplified way. Dynamic spectrum management will provide conducive environment for implementation of cognitive radio based network. This paper gives an overview about shortcomings of current spectrum management and about dynamic spectrum access.