A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios
Conventional distributed cognitive radio (CR) communication aims to increase the sensing accuracy and reduce the detection time by allowing the CR users to operate in the same frequency band in a cooperative fashion and by forming efficient decision making. In this paper, we propose a spectrum-sensi...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/96756 http://hdl.handle.net/10220/13050 |
| _version_ | 1826121658542325760 |
|---|---|
| author | Lin, Mengda Vinod, Achutavarrier Prasad |
| author2 | School of Computer Engineering |
| author_facet | School of Computer Engineering Lin, Mengda Vinod, Achutavarrier Prasad |
| author_sort | Lin, Mengda |
| collection | NTU |
| description | Conventional distributed cognitive radio (CR) communication aims to increase the sensing accuracy and reduce the detection time by allowing the CR users to operate in the same frequency band in a cooperative fashion and by forming efficient decision making. In this paper, we propose a spectrum-sensing scheme which provides accurate detection at low complexity, by assigning different sensing tasks to the CRs. If the number of cooperative CRs is N, our method offers an effective sensing resolution of N times higher than that of the conventional method. An inherently low complex progressive decimation filter bank, which provides variable sensing resolutions by software reconfiguration, is employed at each CR. The design example shows that the hardware complexity of our sensing scheme is 41.3% less than that of the conventional spectrum sensor. It is also shown that the proposed system can support multiple communication standards. |
| first_indexed | 2024-10-01T05:36:07Z |
| format | Journal Article |
| id | ntu-10356/96756 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:36:07Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/967562020-05-28T07:18:06Z A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios Lin, Mengda Vinod, Achutavarrier Prasad School of Computer Engineering DRNTU::Engineering::Computer science and engineering Conventional distributed cognitive radio (CR) communication aims to increase the sensing accuracy and reduce the detection time by allowing the CR users to operate in the same frequency band in a cooperative fashion and by forming efficient decision making. In this paper, we propose a spectrum-sensing scheme which provides accurate detection at low complexity, by assigning different sensing tasks to the CRs. If the number of cooperative CRs is N, our method offers an effective sensing resolution of N times higher than that of the conventional method. An inherently low complex progressive decimation filter bank, which provides variable sensing resolutions by software reconfiguration, is employed at each CR. The design example shows that the hardware complexity of our sensing scheme is 41.3% less than that of the conventional spectrum sensor. It is also shown that the proposed system can support multiple communication standards. 2013-08-06T04:37:43Z 2019-12-06T19:34:35Z 2013-08-06T04:37:43Z 2019-12-06T19:34:35Z 2012 2012 Journal Article Lin, M., & Vinod, A. P. (2012). A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios. Circuits, systems, and signal processing, 31(3), 1127-1145. https://hdl.handle.net/10356/96756 http://hdl.handle.net/10220/13050 10.1007/s00034-011-9375-9 en Circuits, systems, and signal processing |
| spellingShingle | DRNTU::Engineering::Computer science and engineering Lin, Mengda Vinod, Achutavarrier Prasad A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title | A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title_full | A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title_fullStr | A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title_full_unstemmed | A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title_short | A low complexity high resolution cooperative spectrum-sensing scheme for cognitive radios |
| title_sort | low complexity high resolution cooperative spectrum sensing scheme for cognitive radios |
| topic | DRNTU::Engineering::Computer science and engineering |
| url | https://hdl.handle.net/10356/96756 http://hdl.handle.net/10220/13050 |
| work_keys_str_mv | AT linmengda alowcomplexityhighresolutioncooperativespectrumsensingschemeforcognitiveradios AT vinodachutavarrierprasad alowcomplexityhighresolutioncooperativespectrumsensingschemeforcognitiveradios AT linmengda lowcomplexityhighresolutioncooperativespectrumsensingschemeforcognitiveradios AT vinodachutavarrierprasad lowcomplexityhighresolutioncooperativespectrumsensingschemeforcognitiveradios |