Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks
Abstract In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C‐RAN) is studied. More precisely, low‐priority users employ cooperative spectrum sensing to detect a vacant portion of the spectrum that is...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-03-01
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| Series: | IET Communications |
| Online Access: | https://doi.org/10.1049/cmu2.12356 |
| _version_ | 1818288339322667008 |
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| author | Hossein Safi Ali Mohammad Montazeri Javane Rostampoor Saeedeh Parsaeefard |
| author_facet | Hossein Safi Ali Mohammad Montazeri Javane Rostampoor Saeedeh Parsaeefard |
| author_sort | Hossein Safi |
| collection | DOAJ |
| description | Abstract In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C‐RAN) is studied. More precisely, low‐priority users employ cooperative spectrum sensing to detect a vacant portion of the spectrum that is not currently used by high‐priority users. The authors' aim is to maximize the overall throughput of the low‐priority users while guaranteeing the quality of service of the high‐priority users. This objective is attained by optimally adjusting spectrum sensing time, with respect to target probabilities of detection and false alarm, as well as dynamically allocating C‐RAN resources, that is, powers, sub‐carriers, remote radio heads, and base‐band units. To solve this problem, which is non‐convex and NP‐hard, a low‐complex iterative solution is proposed. Numerical results demonstrate the necessity of sensing time adjustment as well as effectiveness of the proposed solution. |
| first_indexed | 2024-12-13T01:54:49Z |
| format | Article |
| id | doaj.art-0009556e879e414b9b91ebe0fef8c7a9 |
| institution | Directory Open Access Journal |
| issn | 1751-8628 1751-8636 |
| language | English |
| last_indexed | 2024-12-13T01:54:49Z |
| publishDate | 2022-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Communications |
| spelling | doaj.art-0009556e879e414b9b91ebe0fef8c7a92022-12-22T00:03:24ZengWileyIET Communications1751-86281751-86362022-03-0116434835810.1049/cmu2.12356Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networksHossein Safi0Ali Mohammad Montazeri1Javane Rostampoor2Saeedeh Parsaeefard3Faculty of Electrical Engineering Shahid Beheshti University Tehran IranCommunications Technology (CT) Research Faculty Iran Telecommunication Research Center (ITRC) Tehran IranDepartment of Electrical and Computer Engineering The University of Toronto Toronto CanadaDepartment of Electrical and Computer Engineering The University of Toronto Toronto CanadaAbstract In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C‐RAN) is studied. More precisely, low‐priority users employ cooperative spectrum sensing to detect a vacant portion of the spectrum that is not currently used by high‐priority users. The authors' aim is to maximize the overall throughput of the low‐priority users while guaranteeing the quality of service of the high‐priority users. This objective is attained by optimally adjusting spectrum sensing time, with respect to target probabilities of detection and false alarm, as well as dynamically allocating C‐RAN resources, that is, powers, sub‐carriers, remote radio heads, and base‐band units. To solve this problem, which is non‐convex and NP‐hard, a low‐complex iterative solution is proposed. Numerical results demonstrate the necessity of sensing time adjustment as well as effectiveness of the proposed solution.https://doi.org/10.1049/cmu2.12356 |
| spellingShingle | Hossein Safi Ali Mohammad Montazeri Javane Rostampoor Saeedeh Parsaeefard Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks IET Communications |
| title | Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks |
| title_full | Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks |
| title_fullStr | Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks |
| title_full_unstemmed | Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks |
| title_short | Spectrum sensing and resource allocation for 5G heterogeneous cloud radio access networks |
| title_sort | spectrum sensing and resource allocation for 5g heterogeneous cloud radio access networks |
| url | https://doi.org/10.1049/cmu2.12356 |
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