{"title":"基于重叠- fft结构的高效频谱感知算法","authors":"Zipeng Zhang, Yubai Li","doi":"10.1109/ICCT.2017.8359754","DOIUrl":null,"url":null,"abstract":"In this paper, the detection performance of the energy detection algorithm in frequency domain based on overlap-Fast Fourier Transform (overlap-FFT) architecture are analyzed through theoretical derivation and simulation. Firstly, the Monte Carlo method is used to verify the effectiveness of the theoretical analysis of the detection performance under the overlap-FFT scheme when the overlap ratio γ ∊ [0,0.5]. Then, a method of estimating the probability of detection when the overlap ratio γ > 0.5 is proposed according to the simulation of detection performance in the case of different overlap ratios. Finally, the simulation based on OFDM signals verifies that overlap-FFT technology can effectively improve the frequency domain energy detection performance, and its detection probability is higher than the FSM(frequency smoothed method) algorithm based on cyclic stationary feature detection.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An efficient spectrum sensing algorithm based on overlap-FFT architecture\",\"authors\":\"Zipeng Zhang, Yubai Li\",\"doi\":\"10.1109/ICCT.2017.8359754\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, the detection performance of the energy detection algorithm in frequency domain based on overlap-Fast Fourier Transform (overlap-FFT) architecture are analyzed through theoretical derivation and simulation. Firstly, the Monte Carlo method is used to verify the effectiveness of the theoretical analysis of the detection performance under the overlap-FFT scheme when the overlap ratio γ ∊ [0,0.5]. Then, a method of estimating the probability of detection when the overlap ratio γ > 0.5 is proposed according to the simulation of detection performance in the case of different overlap ratios. Finally, the simulation based on OFDM signals verifies that overlap-FFT technology can effectively improve the frequency domain energy detection performance, and its detection probability is higher than the FSM(frequency smoothed method) algorithm based on cyclic stationary feature detection.\",\"PeriodicalId\":199874,\"journal\":{\"name\":\"2017 IEEE 17th International Conference on Communication Technology (ICCT)\",\"volume\":\"9 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 IEEE 17th International Conference on Communication Technology (ICCT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCT.2017.8359754\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCT.2017.8359754","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An efficient spectrum sensing algorithm based on overlap-FFT architecture
In this paper, the detection performance of the energy detection algorithm in frequency domain based on overlap-Fast Fourier Transform (overlap-FFT) architecture are analyzed through theoretical derivation and simulation. Firstly, the Monte Carlo method is used to verify the effectiveness of the theoretical analysis of the detection performance under the overlap-FFT scheme when the overlap ratio γ ∊ [0,0.5]. Then, a method of estimating the probability of detection when the overlap ratio γ > 0.5 is proposed according to the simulation of detection performance in the case of different overlap ratios. Finally, the simulation based on OFDM signals verifies that overlap-FFT technology can effectively improve the frequency domain energy detection performance, and its detection probability is higher than the FSM(frequency smoothed method) algorithm based on cyclic stationary feature detection.
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