Test & Evaluation of Cognitive and Dynamic Spectrum Access Radios Using the Cognitive Radio Test System
Test & Evaluation of Cognitive and Dynamic Spectrum Access Radios Using the Cognitive Radio Test System
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测试
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发表时间：
2015
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通讯作者：
C. Dietrich
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作者：
E. Sollenberger;Ferdinando Romano;C. Dietrich
随着对无线网络的需求持续快速增长，设备必须尽可能高效地利用可用资源。认知无线电（CR）为这个问题提供了一个有吸引力的解决方案，其中设备从他们的经验中学习，并做出智能选择，以优化自己的性能沿着整个网络的性能。频谱共享是一种有前景的方法，其已经获得了很大的兴趣，如LTE未许可的最近发展所示，并且因为联邦政府计划为此目的向公众开放大量频谱。这一领域的研究正在进行中，已经提出和研究了许多方法。虽然开发了与该技术相关的理论概念和算法，但为了弥合从理论到实践的差距，存在有效的测试和评估方法是很重要的。认知无线电测试系统（CRTS）就是为了这个目的而开发的。CRTS正在使用弗吉尼亚理工大学的CORNET测试平台进行开发，该平台由48个软件定义无线电（SDR）节点组成，分布在校园的一座建筑物中。已经为皇家空间遥感系统开发了一个灵活和可扩展的基础框架，并展示了其初步能力。
As the demand placed on wireless networks continues to rapidly grow, devices must utilize available resources as efficiently as possible. Cognitive Radio (CR) provides an attractive solution to this problem, wherein devices learn from their experiences and make intelligent choices to optimize their own performance along with that of the network as a whole. Spectrum sharing is one promising method that has gained much interest as seen by the recent development of LTE-Unlicensed and because of the large amount of spectrum that the federal government plans to open to the public for this very purpose. Research in this area is ongoing and many approaches have been proposed and studied. While the theoretical concepts and algorithms related to this technology are developed, it is important that an efficient test and evaluation methodology exist in order to bridge the gap from theory to practice. The Cognitive Radio Test System (CRTS) is being developed for just this purpose. CRTS is being developed using the CORNET testbed at Virginia Tech, which consists of 48 Software-Defined Radio (SDR) nodes spread through a building on campus. A flexible and extensible base framework for CRTS has been developed and its initial capabilities demonstrated.