Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power
Based on t-distribution and Anderson-Darling test,the first,a method was proposed of spectrum sensing under assumptions that the noise variance was unknown and also the channel information was unknown.Indeed,the sensing was conducted based on Anderson-Darling distance between the distribution of rat...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2011-11-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0027-08/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841539940620435456 |
|---|---|
| author | Lei SHEN Hai-quan WANG Zhi-jin ZHAO Min-hong SUN |
| author_facet | Lei SHEN Hai-quan WANG Zhi-jin ZHAO Min-hong SUN |
| author_sort | Lei SHEN |
| collection | DOAJ |
| description | Based on t-distribution and Anderson-Darling test,the first,a method was proposed of spectrum sensing under assumptions that the noise variance was unknown and also the channel information was unknown.Indeed,the sensing was conducted based on Anderson-Darling distance between the distribution of ratio of sample’s mean to sample’s variance and the t-distribution.The second,another sensing method was proposed,under the same assumptions as the above,based on Anderson-Darling distance between the empirical characteristic function and a known characteristic function.The third,lower bounds on detection probabilities of sensings above were given for a flat,slow fading channel.Theoretical analysis and simulations show that the performances of proposed methods are much better than energy detector-based sensing with known noise variance,especially under an environment of a low signal to noise ration(SNR),or small number of samples. |
| format | Article |
| id | doaj-art-6446c802864642d88e3d52fc606c7783 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-6446c802864642d88e3d52fc606c77832025-01-14T06:30:35ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-11-0132273459658618Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain powerLei SHENHai-quan WANGZhi-jin ZHAOMin-hong SUNBased on t-distribution and Anderson-Darling test,the first,a method was proposed of spectrum sensing under assumptions that the noise variance was unknown and also the channel information was unknown.Indeed,the sensing was conducted based on Anderson-Darling distance between the distribution of ratio of sample’s mean to sample’s variance and the t-distribution.The second,another sensing method was proposed,under the same assumptions as the above,based on Anderson-Darling distance between the empirical characteristic function and a known characteristic function.The third,lower bounds on detection probabilities of sensings above were given for a flat,slow fading channel.Theoretical analysis and simulations show that the performances of proposed methods are much better than energy detector-based sensing with known noise variance,especially under an environment of a low signal to noise ration(SNR),or small number of samples.http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0027-08/Anderson-Darling sensingcharacteristic function sensingnoise uncertaintyspectrum sensingenergy detection-based sensingfading channel |
| spellingShingle | Lei SHEN Hai-quan WANG Zhi-jin ZHAO Min-hong SUN Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power Tongxin xuebao Anderson-Darling sensing characteristic function sensing noise uncertainty spectrum sensing energy detection-based sensing fading channel |
| title | Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| title_full | Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| title_fullStr | Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| title_full_unstemmed | Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| title_short | Blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| title_sort | blind spectrum sensing based on goodness of fit test for cognitive radio in noise of uncertain power |
| topic | Anderson-Darling sensing characteristic function sensing noise uncertainty spectrum sensing energy detection-based sensing fading channel |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0027-08/ |
| work_keys_str_mv | AT leishen blindspectrumsensingbasedongoodnessoffittestforcognitiveradioinnoiseofuncertainpower AT haiquanwang blindspectrumsensingbasedongoodnessoffittestforcognitiveradioinnoiseofuncertainpower AT zhijinzhao blindspectrumsensingbasedongoodnessoffittestforcognitiveradioinnoiseofuncertainpower AT minhongsun blindspectrumsensingbasedongoodnessoffittestforcognitiveradioinnoiseofuncertainpower |