Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes
Cognitive radio system is an innovative technology in the wireless communication that has the capability to smartly communicate with each other by opportunistically exploiting the vacant spectrum of primary users. In this work we present a new idea of sidelobe suppression applicable for cognitive us...
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| Format: | Article |
| Language: | English |
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Wiley
2014-06-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2014/418192 |
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| author | Syed Azmat Hussain Aqdas Naveed Malik Zafar Ullah Khan Ijaz Mansoor Qureshi |
| author_facet | Syed Azmat Hussain Aqdas Naveed Malik Zafar Ullah Khan Ijaz Mansoor Qureshi |
| author_sort | Syed Azmat Hussain |
| collection | DOAJ |
| description | Cognitive radio system is an innovative technology in the wireless communication that has the capability to smartly communicate with each other by opportunistically exploiting the vacant spectrum of primary users. In this work we present a new idea of sidelobe suppression applicable for cognitive users on transmitter and receiver sides. In case of spectrum sharing with the primary users by suppressing the side-lobes at the transmitter and receiver side, the cognitive users will be able to increase the throughput without cooperating the permissible interference temperature limit of the license spectrum. We suggest two generalized sidelobe cancellers (GSCs) that operate in parallel. The first GSC planned to attain the two conflicting objective at the same moment: firstly maximize the cognitive users self throughput; secondly minimize the interference generated by cognitive users at each primary receiver. The second GSC generates two main beams at the positions of the highest amplitude sidelobes of the first one. The values of main beams are equal to the two sidelobe peaks. The subtraction of the outputs of the two GSCs, results in the suppression of the highest pair of sidelobes. This process is repeated iteratively to result in an adaptive algorithm. Simulation results are there to provide the effectiveness of the proposed algorithm. |
| format | Article |
| id | doaj-art-aaf24957b3a049f5a6911ba09e2d08ee |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2014-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-aaf24957b3a049f5a6911ba09e2d08ee2025-08-20T03:39:37ZengWileyInternational Journal of Distributed Sensor Networks1550-14772014-06-011010.1155/2014/418192418192Spectrum Sharing in Cognitive Radio Using GSC with Suppressed SidelobesSyed Azmat Hussain0Aqdas Naveed Malik1Zafar Ullah Khan2Ijaz Mansoor Qureshi3 School of Engineering & Applied Sciences (SEAS), Isra University, Islamabad Campus, Islamabad 44000, Pakistan Department of Electronic Engineering, IIU, H-10, Islamabad 44000, Pakistan Department of Electronic Engineering, IIU, H-10, Islamabad 44000, Pakistan Department of Electrical Engineering, Air University, Islamabad 44000, PakistanCognitive radio system is an innovative technology in the wireless communication that has the capability to smartly communicate with each other by opportunistically exploiting the vacant spectrum of primary users. In this work we present a new idea of sidelobe suppression applicable for cognitive users on transmitter and receiver sides. In case of spectrum sharing with the primary users by suppressing the side-lobes at the transmitter and receiver side, the cognitive users will be able to increase the throughput without cooperating the permissible interference temperature limit of the license spectrum. We suggest two generalized sidelobe cancellers (GSCs) that operate in parallel. The first GSC planned to attain the two conflicting objective at the same moment: firstly maximize the cognitive users self throughput; secondly minimize the interference generated by cognitive users at each primary receiver. The second GSC generates two main beams at the positions of the highest amplitude sidelobes of the first one. The values of main beams are equal to the two sidelobe peaks. The subtraction of the outputs of the two GSCs, results in the suppression of the highest pair of sidelobes. This process is repeated iteratively to result in an adaptive algorithm. Simulation results are there to provide the effectiveness of the proposed algorithm.https://doi.org/10.1155/2014/418192 |
| spellingShingle | Syed Azmat Hussain Aqdas Naveed Malik Zafar Ullah Khan Ijaz Mansoor Qureshi Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes International Journal of Distributed Sensor Networks |
| title | Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes |
| title_full | Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes |
| title_fullStr | Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes |
| title_full_unstemmed | Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes |
| title_short | Spectrum Sharing in Cognitive Radio Using GSC with Suppressed Sidelobes |
| title_sort | spectrum sharing in cognitive radio using gsc with suppressed sidelobes |
| url | https://doi.org/10.1155/2014/418192 |
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