Performance Evaluation of Spectrum Sensing Using Recovered Secondary Frames With Decoding Errors

Tang Liang; Chen Yunfei; Nallanathan Arumugam; Hines Evor L.

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Performance Evaluation of Spectrum Sensing Using Recovered Secondary Frames With Decoding Errors

机译：使用已恢复的具有解码错误的二次帧进行频谱感知的性能评估

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The performance of spectrum sensing using the recovered secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the decoding errors into account and therefore provides a more realistic comparison between the new model and the conventional model. Both the receiver operating characteristics curves for spectrum sensing and the achievable throughput for data transmission are derived. Effects of fading and error control codes are also investigated. Numerical results show that the new model that considers the decoding error outperforms the conventional model when the number of transmitted secondary frames is below a certain threshold. An upper bound performance can also be obtained by ignoring the decoding error. The threshold is determined by the primary user traffic, the spectrum sensing technique and the secondary signal modulation scheme.

机译：分析了使用恢复的辅助帧进行频谱感测的性能。与先前的工作假设次级信号能够完美解码不同，新的分析考虑了解码错误，因此可以在新模型和常规模型之间进行更现实的比较。得出用于频谱感测的接收机工作特性曲线和用于数据传输的可达到的吞吐量。还研究了衰落和错误控制码的影响。数值结果表明，当传输的次帧数低于一定阈值时，考虑解码误差的新模型优于传统模型。也可以通过忽略解码错误来获得上限性能。该阈值由主要用户流量，频谱感测技术和辅助信号调制方案确定。

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来源
《Wireless Communications, IEEE Transactions on》 |2012年第8期|p.2934-2945|共12页
作者
Tang Liang; Chen Yunfei; Nallanathan Arumugam; Hines Evor L.;
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作者单位

School of Engineering, University of Warwick, Coventry, CV4 7AL, UK;

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原文格式 PDF
正文语种 eng
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关键词
Achievable throughput; cognitive radio; spectrum sensing;

机译：可达到的吞吐量;认知无线电;频谱感测;

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Performance Evaluation of Spectrum Sensing Using Recovered Secondary Frames With Decoding Errors

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