A Multiple-Input Nyquist Folding Receiver Architecture for Low SNR Wideband Spectrum Sensing

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	A Multiple-Input Nyquist Folding Receiver Architecture for Low SNR Wideband Spectrum Sensing
	Gong TR(宫铁瑞); Wang GS(王庚善); Duan MQ(段茂强); Yang ZJ(杨志家)
	2017
会议名称	2017 17th IEEE International Conference on Communication Technology (ICCT 2017)
会议日期	October 27-30, 2017
会议地点	Chengdu, China
关键词	cognitive radio wideband spectrum sensing: sub-Nyquist sampling low SNR spectrum sensing: multiple input spectrum sensing
页码	364-368
通讯作者	Gong TR(宫铁瑞)
中文摘要	The ever increasing demand of communication makes the spectrum more crowded, and thus the Cognitive Radio (CR) emerged as a potential effective scheme to increase the utilization of spectrum. Sub-Nyquist sampling based CR can greatly reduce the sampling rate than those Nyquist sampling based schemes for wideband spectrum sensing. But existing single node sub-Nyquist sampling schmes seldom use spatial diversity and show poor recovery and detection performance in low Signal to Noise Ratio (SNR) condition. NYquist Folding Receiver (NYFR) as one of effective sub-Nyquist sampling schemes exhibits a lower system working frequency than most other schemes, but it is greatly effectted by noise. In this paper, we first investigate the property that the Additive White Gaussian Noise (AWGN) after sub-Nyquist sampling by NYFR is still the AWGN, then, we propose a Multiple Input NYquist Folding Receiver (MI-NYFR) scheme by using the noise white-keeping property and spatial diversity. The proposed scheme is tested respectively in denoising and detection respects in AWGN channel. Simulation results show that the proposed MI-NYFR exhibits good noise robustness and high detection probability very well in low SNR condition.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议录	2017 17th IEEE International Conference on Communication Technology (ICCT 2017)
会议录出版者	IEEE
会议录出版地	New York
语种	英语
ISBN号	978-1-5090-3943-2
WOS记录号	WOS:000435276600071
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/21321]
专题	沈阳自动化研究所_工业控制网络与系统研究室
作者单位	1.Department of Industrial Control Network and Systems, Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang, China 2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Gong TR,Wang GS,Duan MQ,et al. A Multiple-Input Nyquist Folding Receiver Architecture for Low SNR Wideband Spectrum Sensing[C]. 见:2017 17th IEEE International Conference on Communication Technology (ICCT 2017). Chengdu, China. October 27-30, 2017.