Cyclostationary Signatures in Practical Cognitive Radio Applications
Cyclostationary Signatures in Practical Cognitive Radio Applications
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DOI：
10.1109/jsac.2008.080103
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发表时间：
2008
影响因子：
16.4
通讯作者：
P. Sutton;K. Nolan;L. Doyle
中科院分区：
文献类型：
--
作者：
P. Sutton;K. Nolan;L. Doyle
我们将循环平稳签名定义为可以有意嵌入数字通信信号中的特征，通过循环平稳分析检测并用作唯一标识符。本文的目的是展示如何利用循环平稳签名来克服新兴认知无线电应用和频谱共享机制中与网络协调相关的一些挑战。我们特别展示了它们在信号检测、网络识别和交会方面的用途，并在动态频谱接入的背景下讨论了这些用途。我们提出了一个理论讨论，然后是在实际认知无线电和动态频谱使用场景中使用的循环平稳签名的面向应用的例子。我们专注于基于正交频分复用（OFDM）的系统，并在认知无线电测试平台上分析了采用这些技术的收发器实现。
We define a cyclostationary signature as a feature which may be intentionally embedded in a digital communications signal, detected through cyclostationary analysis and used as a unique identifier. The purpose of this paper is to demonstrate how cyclostationary signatures can be exploited to overcome a number of the challenges associated with network coordination in emerging cognitive radio applications and spectrum sharing regimes. In particular we show their uses for signal detection, network identification and rendezvous and discuss these in the context of dynamic spectrum access. We present a theoretical discussion followed by application-oriented examples of the cyclostationary signatures used in practical cognitive radio and dynamic spectrum usage scenarios. We focus on orthogonal frequency division multiplexing (OFDM) based systems and present an analysis of a transceiver implementation employing these techniques developed on a cognitive radio test platform.