A Cognitive Radio Spectrum Sensing Method for an OFDM Signal Based on Deep Learning and Cycle Spectrum

Table 5

Comparison of three algorithms.

	CNN				Logistic regression				SVM
Data set			-time (s)	-time (s)			-time (s)	-time (s)			-time (s)	-time (s)
1000	0.9478	0.0821	5.3831	0.3841	0.6387	0.1728	178.43	17.8	0.8221	0.0982	361.42	29.2
2000	0.9492	0.0722	8.6242	0.6235	0.6525	0.1572	243.32	23.2	0.8292	0.0923	543.31	43.5
3000	0.9539	0.0632	10.4253	0.8212	0.6693	0.1384	301.21	29.3	0.8504	0.0951	742.83	59.8
4000	0.9578	0.0615	12.1235	0.9343	0.6852	0.1253	362.43	37.2	0.8525	0.0942	978.56	78.4
5000	0.9632	0.0523	13.2121	1.0215	0.6971	0.1132	415.37	48.5	0.8532	0.0965	1021.35	87.5
6000	0.9689	0.0494	14.5236	1.1245	0.7135	0.1012	523.41	56.1	0.8551	0.0937	1156.53	96.4